ライフサイエンスコーパス: nitrosyl

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

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

3 aturated NO samples is pentacoordinate alpha-nitrosyl.

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

5 ngly sigma-donating aryl ligand trans to the 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 antly enhanced relaxations to the NO donor S-nitrosyl-acetyl-penicilamine (SNAP) in arteries from bot

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

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

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

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

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

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

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

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

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

21 Nitrosyl adducts of various Fe-TfdA complexes have also

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

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

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

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

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

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

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

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

30 Nitrosyl bending and phosphine loss help to create two v

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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 se as a trap, and the formation of a ferrous nitrosyl complex of H4B-free NOS during turnover of NHA

64 ding constants for imidazoles to the ferrous nitrosyl complex of S92A/H93G are much weaker than in H9

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

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

67 )](2+) (2), best described as a mixed-valent nitrosyl complex that has a nu(N-O) band at 1670 cm(-1)

68 on (NO-) based on the formation of a ferrous nitrosyl complex using the heme domain of soluble guanyl

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

89 at 436 nm, which has been attributed to the nitrosyl complex.

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

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

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

93 non-heme iron and hexacoordinated heme iron nitrosyl complexes based on low-temperature EPR spectra.

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

95 complexes and hexa- and pentacoordinated Hb-nitrosyl complexes in the cells.

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

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

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

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

100 The nitrosyl complexes reduce at potentials that are approxi

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

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

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

104 In addition, no heme iron nitrosyl complexes were discernible in the EPR spectra f

105 These nitrosyl complexes were spectrally distinguishable by th

106 effects of NO were due to formation of iron-nitrosyl complexes whose redox interactions with t-BuOOH

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

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

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

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

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

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

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

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

115 ates in the interconversion of iron thiolate nitrosyl compounds.

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

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

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

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

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

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

122 placed tyrosine residue that modulates heme-nitrosyl coordination.

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

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

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

126 coordinates leading to the unproductive iron-nitrosyl dimer.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

148 culating the equilibrium distribution of the nitrosyl function group in mixtures of up to three thiol

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 (1-385) and H105G(Im) form a five-coordinate nitrosyl heme complex with a nu(Fe-NO) value of 525 cm-1

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

161 m-1 has been identified in a five-coordinate nitrosyl heme complex.

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

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

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

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

166 We have examined the stability of the nitrosyl-heme complex of sGC (*NO-sGC) at 37 degreesC in

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

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

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

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

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

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

173 The nitrosyl hemoglobin complex could be detected as early a

174 d 4, 4'-dipyridyl disulfide of several alpha-nitrosyl hemoglobin derivatives over a wide pH range, as

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

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

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

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

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

180 The total Bohr effect of alpha-nitrosyl hemoglobin is comparable to that of normal hemo

181 spite the halved O2-carrying capacity, alpha-nitrosyl hemoglobin is fully functional (cooperative and

182 alpha-Nitrosyl hemoglobin is relatively stable under aerobic c

183 tions verified that nitric oxide detected as nitrosyl hemoglobin or nitrosyl hemoprotein complexes in

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

185 alpha-Nitrosyl hemoglobin, alpha(Fe-NO)2beta(Fe)2, which is fr

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

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

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

189 s at pharmacological doses formed detectable nitrosyl hemoglobin, which increased with dose.

190 t kinetic studies confirmed the formation of nitrosyl hemoglobin.

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

192 nt of sickle cell anemia produced detectable nitrosyl hemoglobin.

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

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

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

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

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

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

199 At higher doses, nitrosyl hemoprotein complexes could also be detected in

200 ric oxide detected as nitrosyl hemoglobin or nitrosyl hemoprotein complexes in rats was the result of

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

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

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

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

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

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

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

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

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

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

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

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

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

214 79 cm(-)(1)) of the AXCP six-coordinate heme-nitrosyl intermediate.

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

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

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

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

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

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

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

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

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

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

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

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

227 Nitrosyl ligands were chosen to minimize an energy misma

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

229 lex, each involving electronically versatile nitrosyl ligands.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

276 Ferrous-nitrosyl sGC prepared anaerobically and exchanged into a

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

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

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

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

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

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