ライフサイエンスコーパス: nitrosyl

1 xy-reaction, which releases NO from the iron-nitrosyl.

2 aturated NO samples is pentacoordinate alpha-nitrosyl.

3 ed by addition of free NO(2) to the starting nitrosyl.

4 ngly sigma-donating aryl ligand trans to the nitrosyl.

5 ride on the N atom of the coordinated ferric nitrosyl.

6 es not terminate at this very stable ferrous nitrosyl.

7 and also unprecedented for transition-metal nitrosyls.

8 ls to form S-nitrosothiols (RSNOs) and metal nitrosyls.

9 c' (AXCP) forms a novel five-coordinate heme-nitrosyl (5c-NO) complex in which NO resides at the prox

10 face to form a transient six-coordinate heme-nitrosyl (6c-NO) species, which then converts to a proxi

11 lar relaxation in response to the NO donor S-nitrosyl-acetylpenicillamine (SNAP) in fifth-generation

12 messenger molecule nitric oxide to yield the nitrosyl adduct (metMb(NO)).

13 enerate the same intermediate superoxide and nitrosyl adduct 3 (based on IR criteria), which likewise

14 Nanosecond photolysis of the nitrosyl adduct demonstrated that a fraction of the nitr

15 erric heme proteins, indicating that the NP1 nitrosyl adduct has typical bond strength.

16 rmediate, best described as a superoxide and nitrosyl adduct, [Cu(II)2(UN-O(-))(NO)(O2(-))](2+) (3),

17 terium atoms and the stable, EPR-active iron-nitrosyl adduct, a surrogate for reaction intermediates.

18 nstant for the formation of the 6-coordinate nitrosyl adduct, k(on) = (4.4 +/- 0.5) x 10(4) M(-1) x s

19 r yields by careful reduction of the ferrous nitrosyl adducts of the proteins.

20 se processes, it is unclear whether NO forms nitrosyl adducts with moieties other than thiols.

21 it proximal NO binding in their 5-coordinate nitrosyl adducts.

22 o split N(2)O, resulting in a 1:1 mixture of nitrosyl and nitride products; the reaction exhibited fi

23 Strong interaction between the polar nitrosyl and the -OH groups on the host wall leads to ex

24 ctions with iron and thiols, furnishing iron nitrosyls and S-nitrosothiols with wide-ranging stabilit

25 lasma, such as nitrite, N-nitrosamines, iron-nitrosyls, and nitrated lipids, should be evaluated in b

26 trosocysteine (CysNO), mixed disulfides, and nitrosyl anion.

27 le factors leading to extremely rare side-on nitrosyls are unclear, we describe a pair of nickel-nitr

28 With more nitrosyls as in [Fe-Fe](+), accumulated electronic space

29 Nitrosyl bending and phosphine loss help to create two v

30 silylium cation to the ONO atom facilitates nitrosyl bending; (2) The bent nitrosyl promotes the het

31 e-limiting for formation of the initial iron-nitrosyl bond.

32 Fe(NO) and Fe(NO)2 sites and within the iron nitrosyl bonds in each moiety is revealed, accounting fo

33 osely bound complex between an electrophilic nitrosyl bromide (BrNO) molecule and an electron-rich di

34 Additionally, two electrons donated from two nitrosyl-buffered irons, along with two external electro

35 findings have implications not only for heme nitrosyls but also for group-8 transition-metal(III) nit

36 teration of the ligand frame(s) and (b) such nitrosyls can be significantly sensitized to visible lig

37 i*(NO) transition (photoband) of {Ru-NO} (6) nitrosyls can be tuned into visible range via careful al

38 O is a classic non-innocent ligand, and iron nitrosyls can have different electronic structure descri

39 guration adopted by the substrate-bound iron-nitrosyl CDO (termed {ES-NO}7) is a result of the bident

40 ates that react with HCl to generate gaseous nitrosyl chloride (ClNO) and nitryl chloride (ClNO(2)),

41 ) release from a dye-derivatized iron/sulfur/nitrosyl cluster Fe2(mu-RS)2(NO)4 (Fluor-RSE, RS = 2-thi

42 nfrared spectroscopic data on small-molecule nitrosyl clusters which serve as models for the identifi

43 dels for the identification of protein-bound nitrosyl clusters.

44 on iron in the series native CYP119 < CYP119 nitrosyl complex < CYP119 compound II derivative.

45 mechanism in the proximal 5-coordinate heme-nitrosyl complex (5c-NO) of cytochrome c' from Alcaligen

46 th 1 equiv of NO to form the first f element nitrosyl complex (C(5)Me(4)H)(3)UNO, 2.

47 roximal histidine to yield a five-coordinate nitrosyl complex (k(6-5) = 12.8 s(-1)).

48 nitric oxide produces a dicopper mu-oxo, mu-nitrosyl complex [LCu(2)(mu-O)(mu-NO)](2+), representing

49 reacts with nitric oxide (NO) to afford the nitrosyl complex [Mn(PaPy2Q)(NO)]ClO4 (2) via reductive

50 These data indicate that the sGC ferrous-nitrosyl complex adopts two 5-coordinate conformations,

51 o the formation of a five-coordinate ferrous-nitrosyl complex and a several hundred-fold increase in

52 cantly reduce the formation of non-heme iron-nitrosyl complex and nitrite.

53 native CYP119 and k = 13 A(-1) for both the nitrosyl complex and the compound II derivative.

54 ntermediate to the activated five-coordinate nitrosyl complex depended on the concentration of NO.

55 The other product is the respective ferrous nitrosyl complex Fe(II)(Por)(NO) (Por = TPPS or TMPS).

56 The nitrosyl complex Fe(II)(TPPS)(NO) is the dominant iron s

57 the presence of excess NO to give the nitro nitrosyl complex Fe(TPP)(NO2)(NO) (3), suggesting that p

58 various substrates S to generate the ferrous nitrosyl complex FeII(TPPS)(NO) (2) plus oxidized substr

59 ic activity inhibition that is attributed to nitrosyl complex formation.

60 bited MPO catalysis through formation of the nitrosyl complex MPO-Fe(III)-NO.

61 hic studies have shown that the 5-coordinate nitrosyl complex of cytochrome c' binds NO to the proxim

62 The EPR spectrum of the nitrosyl complex of fully reduced MauG shows a single si

63 gen-oxygen bond formation to give the Os(II) nitrosyl complex OsO2 (NO)(-) .

64 y shows that the spectrum of the sGC ferrous-nitrosyl complex shifts in the presence of YC-1, BAY 41-

65 )](2+) (2), best described as a mixed-valent nitrosyl complex that has a nu(N-O) band at 1670 cm(-1)

66 ess, we isolated a new type of non-heme iron nitrosyl complex that is stabilized by an unexpected spi

67 to form a predominantly five-coordinate heme-nitrosyl complex via a six-coordinate intermediate, RCCP

68 The CYP119 nitrosyl complex was prepared by reaction of the enzyme

69 ructure and functional properties of the FeB nitrosyl complex was probed.

70 s successful, the bands corresponding to the nitrosyl complex were replaced by bands corresponding to

71 CYP119, its compound II derivative, and its nitrosyl complex were studied by iron K-edge x-ray absor

72 The NO-activated enzyme is a five-coordinate nitrosyl complex where the axial histidine bond is broke

73 duction of NO is destabilization of the iNOS-nitrosyl complex(es) that form during steady-state catal

74 eme o(3)-NO complex does not produce a Cu(B)-nitrosyl complex, but that instead, the NO remains unbou

75 iron site as a six-coordinate diamagnetic Fe-nitrosyl complex, called NH(dark).

76 The heme-nitrosyl complex, formed in all NOS isoforms during NO c

77 e conformational change that buries the heme nitrosyl complex, highlighting the remarkable evolution

78 We detected NO-Fe(DTCS)2, a nitrosyl complex, resulting from the reaction of NO* and

79 s detected by EPR spectrometry of the Fe(II) nitrosyl complex, was regulated by the redox state of th

80 form an end-on NO-Cu(B) or a side-on copper-nitrosyl complex, which is likely to represent the bindi

81 xidases react quickly with NO to form a heme-nitrosyl complex, which, in some of these enzymes, can f

82 duct formation is observed from the iron(II)-nitrosyl complex.

83 O-bound (eta1-O) or a side-on (eta2-NO) CuB-nitrosyl complex.

84 a new nu(N-O) at 1589 cm-1 assigned to a CuB-nitrosyl complex.

85 ted to the formation of an inhibitory copper.nitrosyl complex.

86 and triggered the formation of non-heme iron-nitrosyl complex.

87 allowed its identification as a ferric iron-nitrosyl complex.

88 dine bond and formation of a five-coordinate nitrosyl complex.

89 -MOF-5 activates NO to produce an unusual Fe-nitrosyl complex.

90 ma nitrite, but lower concentrations of iron nitrosyl complexes (HbFeIINO) in red blood cells.

91 While copper nitrosyl complexes are implicated in numerous biological

92 mation of stable six-coordinate ferrous heme nitrosyl complexes in solution at room temperature in th

93 rric LOXs (0.2 microM) metal centers to form nitrosyl complexes occurred at these .NO concentrations.

94 onal FTIR photolysis experiments on the heme-nitrosyl complexes of these terminal oxidases, in the pr

95 sence of ferric heme complexes forms ferrous nitrosyl complexes providing further evidence for the in

96 st to Fe2(S2C3H6)(CO)4(PMe3)2, the bis(PMe3) nitrosyl complexes readily undergo CO substitution to gi

97 The nitrosyl complexes reduce at potentials that are approxi

98 These structurally characterized iron nitrosyl complexes reside in the following highly reduce

99 Linkage isomers of reduced metal-nitrosyl complexes serve as key species in nitric oxide

100 Herein a redox series of isolable iron nitrosyl complexes stabilized by a tris(phosphine)borane

101 reinforce the electronic resemblance of the nitrosyl complexes to the corresponding mixed-valence di

102 These nitrosyl complexes were spectrally distinguishable by th

103 o the isostructural series of high-spin iron nitrosyl complexes {Fe-NO}(7,8,9) (2-4).

104 c ground state of the pentacoordinate cobalt nitrosyl complexes, [CoX2 (NO)(PMePh2 )2 ] (X=Cl, Br), i

105 ls is believed to be mediated by N2O3, metal-nitrosyl complexes, and peroxynitrite.

106 te, nitrated lipids, N-nitrosamine, and iron-nitrosyl complexes, may contribute.

107 comparable synthetic {FeNO}7 (S = 1/2) iron-nitrosyl complexes.

108 eact with placental homogenates to form iron nitrosyl complexes.

109 ctures of this uncommon redox series of iron nitrosyl complexes.

110 the key steps leading to these non-heme iron nitrosyl complexes.

111 eact with placental homogenates to form iron nitrosyl complexes.

112 inding demonstrates that this high-spin iron nitrosyl compound undergoes iron-centered redox chemistr

113 nkage isomers in the photochemistry of metal-nitrosyl compounds in chemistry and biology.

114 ates in the interconversion of iron thiolate nitrosyl compounds.

115 ete [(L)Cu(II)(NO2(-))](+) plus ferrous heme-nitrosyl compounds; when the first NO(g) equiv reduces t

116 can adopt different five-coordinate ferrous nitrosyl conformations and suggests that the Fe-NO confo

117 The fact that a dependent 6- to 5-coordinate nitrosyl conversion has been previously reported for sol

118 The rate of 6- to 5-coordinate heme nitrosyl conversion is also dependent upon NO concentrat

119 al Fe-His bond strength, determines the heme-nitrosyl coordination number in cytochromes c'.

120 rength account for their differences in heme-nitrosyl coordination number.

121 placed tyrosine residue that modulates heme-nitrosyl coordination.

122 ong trans effect due to the tethered base in nitrosyl derivatives of both Cbl(II) and Cbl(III).

123 Many nitrosyl derivatives of non-heme iron enzymes have spect

124 enhanced over the first generation {Mn-NO}6 nitrosyl derived from analogous polypyridine ligand, nam

125 coordinates leading to the unproductive iron-nitrosyl dimer.

126 enzyme with nitrogen monoxide gas or with a nitrosyl donor and was stable at 23 degrees C for hours.

127 The potential of these photosensitive nitrosyl-dye conjugates as (i) biological tools to study

128 Three nitrosyl-dye conjugates, namely, [(Me 2bpb)Ru(NO)(Resf)]

129 This {Fe-NO}(6) nitrosyl effectively mimics the NO-bound active site in

130 position, while activated acetylenes and the nitrosyl electrophile substitute at the 2 position.

131 hich subsequently converts to a 5-coordinate nitrosyl end product (lambdaSoret at 395 nm) in a rate-d

132 This diamagnetic {Mn-NO}6 nitrosyl exhibits nuNO at 1725 cm-1 and is highly solubl

133 lmonary afferents mediating the BJR and that nitrosyl factors influence 5-HT(3)R function.

134 rents raises the possibility that endogenous nitrosyl factors regulate the status of 5-HT(3)Rs in the

135 urn allows the (six-coordinate low-spin heme-nitrosyl/Fe(B)-nitrosyl) transient dinitrosyl complex to

136 , leading to a (six-coordinate low-spin heme-nitrosyl/FeB-nitrosyl) transient dinitrosyl complex with

137 urified Hb treated with authentic NO to form nitrosyl(FeII)-Hb, the proposed precursor of SNO-Hb.

138 xia is accompanied by a buildup of heme iron-nitrosyl (FeNO) species that are deficient in pO(2-)gove

139 specially true for the so-called ferric heme nitrosyls ([FeNO](6) in the Enemark-Feltham scheme).

140 ediate is not an FeIVoxo, but rather an iron-nitrosyl [FeNO]6 complex.

141 olecular transfer of NO from heme iron (iron nitrosyl, FeNO) to cysteine thiol (S-nitrosothiol, SNO)

142 EPR and ENDOR study of the EPR-active Fe(II)-nitrosyl, [FeNO],(7) complex of ACCO, we demonstrated th

143 bstrates for MPO and convert the enzyme to a nitrosyl ferrous intermediate.

144 he enzyme is then in the relatively inactive nitrosyl form [k(off)/k(on) for NO (0.000008 microM) k(o

145 SHNO complex spontaneously reoxidizes to the nitrosyl form following a first-order kinetic decay with

146 investigate the electronic structure of the nitrosyl-form, obtaining fundamental clues about a diffe

147 ocket environments of ferrous, carbonyl, and nitrosyl forms of cytochrome c' in solution fully suppor

148 Key to heme-nitrosyl function and reactivity is the Fe coordination

149 plexes that can be deprotonated alpha to the nitrosyl group and added to various Michael acceptors.

150 This difference in hydrogen bonding to the nitrosyl group by the two substrates indicates that inte

151 The nitrosyl group could then travel further by transnitrosy

152 FDP(NO) the increased nucleophilicity of the nitrosyl group may promote attack by a second NO to prod

153 te acid and adventitious nucleophiles at the nitrosyl group then occurs followed by rapid tautomeriza

154 I)-NO complex with NOHA show a nearly linear nitrosyl group, and in one subunit, partial nitrosation

155 alent adduction of nitric oxide (NO)-derived nitrosyl groups to the cysteine thiols of proteins.

156 In the latter case, the nitrosyl has effectively shifted electron density from t

157 le the conversion of [Fe-S] clusters to iron-nitrosyls has been widely studied in the past, little is

158 tegies for synthesizing photosensitive metal nitrosyls have been discussed to establish the merits of

159 Iron-nitrosyls have fascinated chemists for a long time due t

160 tal pocket desolvation and protection of the nitrosyl heme complex.

161 oupling constants, can now be calculated for nitrosyl heme systems with relatively good accuracy and

162 , however only to a fraction of the level of nitrosyl(heme)hemoglobin and without a detectable arteri

163 nitrite levels increased by 11% and arterial nitrosyl(heme)hemoglobin levels increased tenfold to the

164 ounting for this arterial-venous gradient is nitrosyl(heme)hemoglobin.

165 rotein-assisted heme ruffling, may lead to a nitrosyl-heme complex that is unusually resistant to aut

166 The crystal structures of nitrosyl-heme complexes of a prokaryotic nitric oxide sy

167 e showed prominent spectra of six-coordinate nitrosyl-heme complexes, primarily NO-myoglobin, that in

168 Total nitrosyl-heme concentrations within the heart were 6.6 +

169 duction of signals for nitrosylmyoglobin and nitrosyl-heme with NOX-100 and elimination of signals wi

170 r myocardial levels of nitrite, nitroso, and nitrosyl-heme, and displayed a 48% reduction in infarct

171 The nitrosyl hemoglobin complex could be detected as early a

172 we found no arterial/venous gradient of iron nitrosyl hemoglobin detectable by electron paramagnetic

173 These results show that iron nitrosyl hemoglobin formation from the reaction of hydro

174 Similar experiments reveal that iron nitrosyl hemoglobin formation specifically occurs during

175 bin-hydroxyurea complex is critical for iron nitrosyl hemoglobin formation.

176 nating nitrite can lead to formation of iron nitrosyl hemoglobin in deoxygenated hemoglobin preparati

177 ctivity it must capture nitric oxide as iron nitrosyl hemoglobin rather than destroy it by dioxygenat

178 d by electron spin resonance measurements of nitrosyl hemoglobin, and blunts the increase in blood pr

179 electron paramagnetic resonance detection of nitrosyl hemoglobin, chemiluminescent detection of NO, a

180 ngle probability surfaces (Z-surfaces) for a nitrosyl hemoglobin, using, in addition, an energy filte

181 t kinetic studies confirmed the formation of nitrosyl hemoglobin.

182 -, and methemoglobin to produce 2-6% of iron nitrosyl hemoglobin.

183 NO) or nitrite ions (NO 2 (-)) produces iron-nitrosyl-hemoglobin (HbNO) in contrast to the reaction w

184 ated AHb1 and AHb2 generates NO gas and iron-nitrosyl-hemoglobin species.

185 e oxy-reaction oxidize the heme iron of iron-nitrosyl-hemoglobin, a product of the deoxy-reaction, wh

186 mited rate with deoxyhemoglobin to form iron-nitrosyl-hemoglobin, which to date has been considered a

187 yhemoglobin, and releasing free NO from iron-nitrosyl-hemoglobin.

188 sociated with increased blood levels of iron-nitrosyl-hemoglobin.

189 ein report the unprecedented substitution of nitrosyl hydride (HNO) for dioxygen in the activity of M

190 hemoglobin allows assignment of two distinct nitrosyl hydride peaks by a combination of UV-vis, NMR,

191 Nitroxyl, or nitrosyl hydride, (HNO) is a pharmacologically relevant

192 Nitrosyl hydride, HNO or nitroxyl, is the one-electron r

193 thermochemistry and reactivity of nitroxyl (nitrosyl hydride, HNO) were elucidated with multiconfigu

194 Nitrosyl hydride, HNO, also commonly termed nitroxyl, is

195 , forming S- and N-nitroso adducts and metal nitrosyls implicated in NO signaling.

196 Angeli's salt, was used to form the ferrous nitrosyl in the presence of the pterin radical intermedi

197 s but also for group-8 transition-metal(III) nitrosyls in general.

198 s demonstrate coupling between the two bound nitrosyls in the transient species.

199 al properties of six-coordinate ferrous heme-nitrosyls in which an N-donor ligand is bound trans to N

200 ome c' reacts with NO to form a 6-coordinate nitrosyl intermediate (lambdaSoret at 415 nm) which subs

201 surements of the freeze-trapped 6-coordinate nitrosyl intermediate reveal an unusually high Fe-NO str

202 proper release of NO from a proposed ferrous nitrosyl intermediate.

203 79 cm(-)(1)) of the AXCP six-coordinate heme-nitrosyl intermediate.

204 either an iron(III)-superoxo or an iron(II)-nitrosyl intermediate.

205 tion and the subsequent reaction of produced nitrosyl ion (NO(+)) with NO2(-).

206 -nitroso compounds (ATNC), nitrosothiols and nitrosyl iron compounds (FeNO) were analyzed in addition

207 uclear inelastic x-ray absorption data from (nitrosyl)iron(II)tetraphenylporphyrin, FeTPP(NO), a usef

208 t (0.05 mm/s) at 4.2 K are similar to other (nitrosyl)iron(III) porphyrin complexes with linear Fe-N-

209 ural, and spectroscopic characterization of (nitrosyl)iron(III) porphyrinate complexes designed to ha

210 ic weakness of the Fe-NO bond in ferric heme nitrosyls is an intrinsic feature that relates to the pr

211 ark conditions, respectively, to produce the nitrosyl, isocyanate complex Cp*Mo[N((i)Pr)C(Me)N((i)Pr)

212 electron spin resonance spectrum of ferrous nitrosyl KatG is consistent with a proximal histidine li

213 cts with nitric oxide (NO) to yield a nickel nitrosyl, [(L(tBu))Ni(NO)] (2), and a perthionitrite ani

214 e a nitrogen-donor axial ligand trans to the nitrosyl ligand and display planar as well as highly non

215 nts with (15)N-labeled P.A. confirm that the nitrosyl ligand in 4 derives from P.A.

216 ning of noncovalent interactions between the nitrosyl ligands and differently encapsulated potassium

217 ons with imidazolates bridging the edges and nitrosyl ligands capping the irons at the corners.

218 rder and variable rotational orientations of nitrosyl ligands for six different six-coordinate iron p

219 Nitrosyl ligands were chosen to minimize an energy misma

220 Hemilabile, MN2S2 ligands and redox-active, nitrosyl ligands, whose interplay guides the H2 producti

221 lex, each involving electronically versatile nitrosyl ligands.

222 We study photoinduced metal-nitrosyl linkage isomerism in sodium nitroprusside (Na(2

223 standing the role played by metastable metal-nitrosyl linkage isomers in the photochemistry of metal-

224 bservation of two known metastable (MS) iron-nitrosyl linkage isomers of SNP, [Fe(II)(CN)(5)(eta(1)-O

225 ls are unclear, we describe a pair of nickel-nitrosyl linkage isomers through controlled tuning of no

226 sponding numbers for photoinduced side-bound nitrosyl linkage isomers.

227 nvolve direct reaction of NO to form a metal-nitrosyl (M-NO), as occurs at the Fe(2+) centres of solu

228 Me(2)NN]Ni fragment is trapped as the nickel nitrosyl [Me(2)NN]Ni(NO).

229 protected from oxidation, suggesting ferrous-nitrosyl-mediated reduction of the radical.

230 first structurally characterized mu-oxo, mu-nitrosyl metal complex.

231 ng nitrite (NO(2) (-)), nitrate (NO(3) (-)), nitrosyl-metal complexes, S-nitrosothiols, and 3-nitroty

232 Metal nitrosyl (MNO) complexes could serve as potential HNO do

233 on of CDO and are consistent with known iron-nitrosyl model complexes.

234 nd ZIP-induced redistribution was blocked by nitrosyl-mutant GluA1-C875S or serine-mutant GluA1-S831A

235 -transfer transition as earlier observed for nitrosyl myoglobin and hemoglobin.

236 n of nitrite to nitric oxide (NO) forms iron-nitrosyl-myoglobin and is the basis of meat curing, a gr

237 The NO-releasing drug S-nitrosyl-N-acetyl-D,L-penicillamine (SNAP; 0-0.5 mM) inh

238 A photoactive manganese nitrosyl, namely [Mn(PaPy(3))(NO)](ClO(4)) ({Mn-NO}), ha

239 n formation of a rare five-coordinate nickel nitrosyl [Ni(NO)(bipy)(2)][PF(6)] (2).

240 ral and electronic similarities between this nitrosyl/nitride complex couple, we adopted the strategy

241 Three conformations of the nitrosyl-nitrito isomer (porphine)Fe(NO)(ONO) (MSa paral

242 Irradiation (330 < lambda < 500 nm) of the nitrosyl-nitro compound (TPP)Fe(NO)(NO(2)) (TPP = tetrap

243 F) the Ru-N-O angle is 154.9(3) degrees, the nitrosyl nitrogen atom is tilted off of the heme normal

244 F) the Fe-N-O angle is 157.4(2) degrees, the nitrosyl nitrogen atom is tilted off of the normal to th

245 Orientational disorder of the distal nitrosyl (NO) ligand in iron porphyrinates is a common p

246 ching and bending vibrational frequencies of nitrosyl NP1 were identified at 591 and 578 cm(-1), resp

247 entially nothing is known about the isomeric nitrosyl-O-hydroxide (HOON), owing to its perceived inst

248 amely the phenyl anion, with the ferric heme nitrosyl [(OEP)Fe(NO)(5-MeIm)](+) generates a mixture of

249 The six-coordinate heme-nitrosyl of RCCP exhibits a fairly typical Fe-NO stretch

250 he chloride ligand of the parent {Ru-NO} (6) nitrosyls of the type [(R 2byb)Ru(NO)(L)] with the anion

251 a 1:1 mixture of nitride NMo(N[R]Ar)(3) and nitrosyl ONMo(N[R]Ar)(3), rather than the known oxo comp

252 Loss of either the nitrosyl or its photoproduct(s) from these materials in

253 nd were mercury-stable, consistent with iron-nitrosyl or N-nitrosamine complex.

254 trans-, cis-, or fac-[Os(II)-N(2)]), Os(II)-nitrosyl [Os(II)-NO](+) (e.g., trans- or cis-[Os(II)-NO]

255 -Fe](+), accumulated electronic space in the nitrosyls' pi*-orbitals makes reductions easier, but red

256 porated into sol-gel (SG) matrices to obtain nitrosyl-polymer composites 1.SG and 2.SG.

257 (NO), its cation [Fe(TPP)(NO)]+, and ferrous nitrosyl porphine Fe(P)(NO).

258 s for 57Fe vibrations in a series of ferrous nitrosyl porphyrins, which provide a benchmark for evalu

259 N-O linkages are possible in formally ferric nitrosyl porphyrins.

260 Photolysis of the Os(II) nitrosyl product with visible wavelengths results in rev

261 of information about the nature of the iron-nitrosyl products formed.

262 ischemic phase, with an increase in nitroso/nitrosyl products in the heart.

263 m facilitates nitrosyl bending; (2) The bent nitrosyl promotes the heterolytic cleavage of the H-H bo

264 S-Nitrosothiol and iron-nitrosyl-protein adducts did not accumulate in the 5-min

265 pi(Ru) --> pi*(NO) transition of the parent nitrosyls [(R 2byb)Ru(NO)(L)] due to changes in R and y

266 The transient population of free nitrosyl radicals (NO.) is also measured in the sample s

267 b)Ru(NO)(L)] nitrosyls, these dye-sensitized nitrosyls rapidly release NO when exposed to visible lig

268 the [FeFe]-hydrogenase active site but with nitrosyl rather than carbonyl or cyanide ligands.

269 Resonance Raman spectra of ferrous-nitrosyl RCCP confirm the presence of both five-coordina

270 ease of NO from a six-coordinate ferric heme nitrosyl requires the system to pass through at least th

271 phore to the ruthenium center in the present nitrosyls results in a significantly greater extent of s

272 The electron-buffering nitrosyl's role is subtler as a bifunctional electron re

273 by measuring the solubilizing effect of iron nitrosyl sickle hemoglobin (HbS-NO).

274 The six-coordinate nitrosyl sigma-bonded aryl(iron) and -(ruthenium) porphy

275 itrite and nitrosothiols, but not NO or iron nitrosyl species (FeNOs), are relatively stable in place

276 NO and iron nitrosyl species (FeNOs), are relatively unstable in pla

277 e of six-coordinate and five-coordinate heme-nitrosyl species in approximately equal proportions.

278 thetic complexes; however, this type of iron-nitrosyl species is not commonly observed for non-heme i

279 Furthermore, these reduced metal-nitrosyl species with N-centered spin density undergo ra

280 Two non-heme iron-nitrosyl species, [Fe2(N-Et-HPTB)(O2CPh)(NO)2](BF4)2 (1a

281 t triggers the formation of HNO from a metal-nitrosyl species, facilitated by an intramolecular penda

282 heme Fe complexes forming individual ferrous nitrosyl species.

283 involves the assignment of I435 to a ferric-nitrosyl species.

284 er, leading to the formation of several iron-nitrosyl species.

285 ulted in: (1) rapid formation of nitroso and nitrosyl species; (2) moderate short-term changes in car

286 nt species are detected using their distinct nitrosyl stretching frequencies at 1794 cm(-1) (MS1), 16

287 The solid-state nitrosyl stretching frequencies for the iron complex (17

288 The solid-state nitrosyl stretching frequencies of 1917 cm(-)(1) for [Fe

289 studied, examples of stable high-spin ferric nitrosyls (such as those that could be expected to form

290 for a variety of octahedral mononuclear iron-nitrosyl synthetic complexes; however, this type of iron

291 tion involving gem-bromofluorocyclopropanes, nitrosyl tetrafluoroborate, and a molecule of the solven

292 ions result from DFT calculations on ferrous nitrosyl tetraphenylporphyrin Fe(TPP)(NO), its cation [F

293 fective way to isolate photoactive manganese nitrosyls that could be used to deliver NO to biological

294 the UV-sensitive parent [(R 2byb)Ru(NO)(L)] nitrosyls, these dye-sensitized nitrosyls rapidly releas

295 um associated with both nitro-to-nitrito and nitrosyl-to-isonitrosyl linkage isomerism.

296 (six-coordinate low-spin heme-nitrosyl/Fe(B)-nitrosyl) transient dinitrosyl complex to decay with pro

297 a (six-coordinate low-spin heme-nitrosyl/FeB-nitrosyl) transient dinitrosyl complex with characterist

298 Flash photolysis of nitrosyl tris(aryl)corrolate complexes of iron(III), Fe(

299 f sensitization to visible light compared to nitrosyls with appended chromophore (linked via alkyl ch

300 This implies that ferric heme nitrosyls with the latter ground state might exist, part