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1 eutral) and |g| = 0.005 at 385 nm (diradical dication).
2 to amine alpha,alpha'-dications (2-azaallyl dications).
3 can be assigned as the cation radical or the dication.
4 BPQT(2(*+)) ring is oxidized to the BIPY(2+) dication.
5 also reduced simultaneously to the diradical dication.
6 C diprotonated to give an oxonium-annulenium dication.
7 antially greater than that of the butadienyl dication.
8 th the very small hydrogen atom or beryllium dication.
9 producing an electroactive 4,4'-bipyridinium dication.
10 t-3-yl)-2,3,5,6-tetramethylb enzene-1,4-diyl dication.
11 lectronic reduction of the 4,4'-bipyridinium dication.
12 e preserve of uranium-nitrides or the uranyl dication.
13 involving the neutral organic donor and its dication.
14 ion as well as a rare example of a noble-gas dication.
15 8 kcal/mol more stable than the closed-shell dication.
16 escales before the break-up of the molecular dication.
17 ions on the structural features of diradical dication.
18 ve rise to the formation of weakly diatropic dications.
19 transformed into superelectrophilic amidine dications.
20 reaction with tris-phenanthroline magnesium dications.
21 ligands linked by [K(2)(18-crown-6)(2)](2+) dications.
22 d molecular chlorine (Cl2) and bromine (Br2) dications.
23 try of the corresponding radical cations and dications.
24 are hybrids of pyrylium cations and Viologen dications.
25 ris(dialkylamino)cyclopropenium (CP) radical dications.
26 lectronic features in the resulting mono and dications.
27 ies of aromatic and antiaromatic cations and dications.
28 Further oxidation gives stable dications.
29 the formation of spectroscopically distinct dications.
30 ticity of the fluorenyl ring system of these dications.
31 tion that is typical of "superelectrophilic" dications.
32 ility of the corresponding aminium diradical dications.
33 es compared to the corresponding symmetrical dications.
35 overed by these studies are the bifunctional dications 1,8-bis(xanthylium)-biphenylene ([3](2+)) and
38 esonance energies of the trimethylenemethane dication (1) and the butadienyl dication (4) were evalua
39 by 2 equiv of acetylferrocenium afforded the dication [1](2+), which, on the basis of low-temperature
40 and (CF(3)CO)(2)O affords the corresponding dication, 1,8-bis(diphenylmethylium)naphthalenediyl (1(2
43 ridyl)biphenyl with 1-bromooctane yields the dication 2(2+) 2Br-, an "extended viologen" isostructura
46 and crystallographic characterization of the dications 2(2+) and 6(2+) (as [PF(6)](2) salts) and 4(2+
51 e dianion (2) and the antiaromaticity of the dication (3) of tetrabenzo[5.5]fulvalene have been evalu
54 protonated chlorine and diprotonated bromine dications 3a and 6a, respectively, were found to be lowe
57 Dimethylated molecular chlorine and bromine dications 3g and 6g, respectively, were also found to be
58 ylenemethane dication (1) and the butadienyl dication (4) were evaluated using two independent comput
59 o-, m-, and p-phenylene bis(1,3-dioxolanium) dications (4-6) and 2,4,6-triphenylene tris(1,3-dioxolan
60 ed to give paratropic carboxonium-annulenium dications (4H2 2+, 5H2 2+, 6H2 2+, and 7H2 2+, respectiv
62 en the electrons of the triplet state of the dication 6(2+), calculated from its dipolar EPR splittin
66 and cathodic pulses, while for anion (A(-*))-dication (A(2+*)) annihilation, transient ECL shows asym
70 t side reactions in less stable antiaromatic dications, allowing exploration of a number of species t
71 orm crystals in which the layers of viologen dications alternate with those of a 1:2 supramolecular c
73 hell singlet diradicaloids, while the longer dication ANA-TFA(2+) and dianion ANA(2-) have closed-she
77 rily reflect the magnetic properties of this dication and potentially those of the other dications st
78 of TTF+* to form the diamagnetic [TTF+,TTF+] dication and to also undergo the equally rapid cross-ass
79 relative stability of doubly charged alkane dications and monocharged boron cation analogues are dis
80 nd in the oxidized species (radical cations, dications and radical trications) has been investigated,
81 to include hypercoordinated onium-carbonium dications and the isoelectronic onium-boronium cation an
82 similar to a band seen in the corresponding dications and to that observed in the monocation of a mo
83 ise oxidation to the radical cations and the dications and was found to be remarkably large (19% and
84 irectly competing for PLGA interactions with dications and/or b) increasing peptide affinity in the s
85 (assigned to the formation of the cation and dication) and a two-electron reduction wave that becomes
86 three chromophores, the radical cation, the dication, and the pi-dimer have been identified and char
87 ix compounds will lose two electrons to form dications, and the use of suitable oxidizing agents has
90 risulfide is formed by reaction of the dimer dication [Ar4S4](2+) with neutral Ar2S2 to afford the tr
95 l derivative, the redox potentials for these dications are less positive than for formation of the di
97 thesized using a new ditetraalkylphosphonium dication as an organic structure-directing agent, and it
99 orporating a series of bifunctional ammonium dications as templates which also emit white light: (1)
102 function and form, as this uniquely compact dication boasts more heteroatoms than carbon centers.
106 ds 1-CS and 2-OS can be oxidized into stable dications by FeCl(3) and/or concentrated H(2)SO(4).
107 gas phase with tris-phenanthroline magnesium dications by forming [FA - H + MgPhen](+) complex ions.
108 Structures of the isomeric adamantanediyl dications C(10)H(14)(2+) and protio-1- and protio-2-adam
109 14)(2+) and protio-1- and protio-2-adamantyl dications C(10)H(16)(2+) were investigated by using the
110 ative study of the superelectrophilic alkane dications (C(n)H(2n+2)2+), n = 1-5) and their isoelectro
112 ifs of planar methane and the planar methane dication can be extended to give planar hypercoordinate
116 pological changes antiparasitic heterocyclic dications can have on kinetoplast DNA, we have construct
117 of the ditosylate Ni(OTs)(2)(dppe) gave the dication [(CO)(2)(dppe)Fe(pdt)Ni(dppe)](OTs)(2) ([2(CO)]
120 '-dimethyl-2,6-diaza-9,10-anthraquinonediium dication (DAAQ.2BF4(-)) exists in equilibrium with both
121 and two more highly conjugated diazapyrenium dication (DAP(2+)) units, respectively, a consecutive se
122 *+)) and an asymmetric cyclophane bisradical dication (DAPQT(2(*+))), affords a symmetric [2]catenane
123 e phenylfuran-benzimidazole unfused aromatic dication DB293 was identified as the first diamidine cap
124 rometry (MS/MS) was used to characterize the dication (DC9) and to identify linked lipid-dication com
125 were more active than pentamidine, and seven dications demonstrated increased activities against P. f
126 the absence of the methoxy substituents, the dication derived from tetraphenylbenziporphyrin 8H2(2+)
127 tructures and energies of superelectrophilic dications derived by protonation of methyl- and dimethyl
128 switch consisting of a linked bis(viologen) dication diradical that can be cycled reversibly between
129 crucially affects the subtle balance between dication dissociation under maintenance of the 2-fold ch
130 ining the oversized ethylenediammonium ( en) dication, { en}FA(0.5)MA(0.5)Sn(0.5)Pb(0.5)I(3) (FA = fo
133 e bond positional isomers of charge inverted dication.FA complexes and the subsequent implementation
134 on to other basic sites in the model peptide dication, facilitating exothermic proton transfer from o
135 The computational results indicate that the dications favor 23-atom 22pai electron delocalization pa
136 ns resulted instead in a set of antiaromatic dications from oxidation of fluorenylidene derivatives.
138 polar splitting, the trishydrazine diradical dication has its remote hydrazine units oxidized, althou
141 Each of these reacts with transition metal dications having a preference for octahedral coordinatio
142 re further utilized to reduce hexyl-viologen dication (HV2+) and a sacrificial electron donor, 1-benz
143 (1,4,5,8-tetraazaphenanthrene)]ruthenium(II) dication immobilized on alkali-treated silica microspher
144 omatic 2pai-electron tetrasilacyclobutadiene dication in [(L(Ph)Si)(4)](BPh(4))(2) (L(Ph) = PhC(NtBu)
145 ular structure reveals a four-membered Si(4)-dication in an almost perfect square-planar geometry.
147 t sub-100 fs isomerization time on acetylene dication in lower electronic states is not possible and
149 ved transient absorption signal for ethidium dication in poly(dG-dC) confirms that guanine oxidation
150 5 H5 ) to oxo-bind and reduce the uranyl(VI) dication in the complex [(UO2 )(THF)(H2 L)] (L="Pacman"
152 to photochemically reduce the hexyl viologen dication in the presence of a sacrificial electron donor
155 curately modeled the energies of a series of dications including fluorenylidene dications whose UV-vi
156 tics are governed by the long-range electron-dication interaction and are not affected by side chain
158 utanediylbis[tris(dimethylamino)]phosphonium dication is a very efficient OSDA for crystallization of
160 enantiomerically enriched triplet diradical dication is configurationally stable for 48 h at room te
163 hetic and structural studies showed that the dication is readily reduced to a neutral, singlet bis-1,
165 ent binding pocket wherein a methyl viologen dication is stabilized by interacting with a bipyridiniu
166 resonance energy of the trimethylenemethane dication is substantially greater than that of the butad
167 a doubly ag conformation, and its diradical dication is suggested to be a triplet because it does no
169 fragmentation behavior of the mass-selected dications is probed by means of collision-induced dissoc
174 he reversible insertion of a large molecular dication, methyl viologen, into the crystal structure of
175 GSL-H](-), and terpyridine-magnesium complex dications, [Mg(Terpy)(2)](2+), are sequentially injected
178 mplex of the N,N'-dimethyl-4,4'-bipyridinium dication (N,N'-dimethyl viologen, MeV) suggests that the
179 molecular recognition between the bisradical dication obtained on reduction of the tetracationic cycl
180 stallographically characterized salts of the dications obtained by two-electron oxidation of E-4,4'-b
181 and T6, whereas subsequent oxidation to the dication occurs more easily for TPTTPT than for TPEEPT a
184 ical oxidation with SbF(5)/SO(2)ClF gave the dication of 9-[(4-methoxyphenyl)methylene]-9H-fluorene c
187 istent with the behavior of the antiaromatic dication of tetrabenzo[5.5]fulvalene, compared to that o
188 nter-naphthalene distance of the dianion and dication of the cyclophane 14 compared to that of its ne
191 tions of 3a-g are more antiaromatic than for dications of 2a-g, which is consistent with their greate
192 are less positive than for formation of the dications of 3a-g and for dications of p-substituted dip
198 zylidene fluorenes were less stable than the dications of diphenylmethylidene fluorenes; within each
199 The redox potentials for formation of the dications of meta-substituted diphenylmethylidenes (3a-g
201 r formation of the dications of 3a-g and for dications of p-substituted diphenylmethylidenefluorenes,
202 are more positive than for the formation of dications of para-substituted diphenylmethylidenes (2a-g
205 deposition apparatus constructed previously, dications of the cyclic peptide Gramicidin S (GS) and th
208 ered ring mesocycles with NOPF6 or Br2 gives dications or a bicyclic dibromide, respectively, which c
209 various iron(IV)-oxo complexes generated as dications or monocations (bearing an anionic ligand).
210 On treatment with nucleophiles, mesocyclic dications, or the corresponding radical cations undergo
211 maticity of the 3-phenylindenylidenefluorene dications over the unsubstituted indenylidenefluorene di
212 results, collisional activation of cesiated dications overwhelmingly results in ejection of Cs(+).
215 MOF-1001 is capable of docking paraquat dication (PQT2+) guests within the macrocycles in a ster
216 eoretical study of the dynamics of acetylene dication produced by Auger decay after X-ray photoioniza
218 haracterization of phenyl viologen (PV) as a dication, radical cation, and neutral species are descri
219 ization of the radical cation gave the dimer dication, [Re2Cp(gamma)2(CO)6]2+ (where Cp(gamma) repres
221 s, based on the planar preference of methane dications, replace two remote carbons in spiroalkaplanes
222 intended to form three-dimensional aromatic dications resulted instead in a set of antiaromatic dica
223 otonation state from a neutral molecule to a dication results in dramatically increased efficiency of
224 joined bis[5]diazahelicene and its diradical dication show strong chirooptical properties that are co
225 sus the calculated energy difference for the dications showed a moderate degree of linearity; the plo
227 oxidation, a measure of the stability of the dications, showed a good linear relationship with anothe
228 This feature manifests itself in the uranyl dication showing little propensity to partake in the man
230 , by adding nucleophiles to an iron(III) pai-dication species formed via addition of trifluoroacetic
232 demonstrate the chemical consequences of the dication stabilities Te(+)-Te(+) > Se(+)-Se(+) > S(+)-S(
234 y identical rates of electron capture by the dications substituted by the benzyl (EA = -1.15 eV) and
235 il interacts cooperatively with bipyridinium dications substituted on their nitrogen atoms with 2-azi
236 e p-methoxy-substituted benzylidene fluorene dication suggests that the calculations satisfactorily r
237 sequence employs nitroalkenes as latent 1,2-dication synthons providing a novel access to highly use
238 migrations occurring in ethanol cations and dications take place within a few hundred fs to ps, usin
239 that the dissociation dynamics of adamantane dications takes place in a two-step process: barrierless
240 ) results in the formation of fluorenylidene dications that are shown to be antiaromatic through calc
241 alenes by SbF(5) results in the formation of dications that behave like two antiaromatic fluorenyl ca
245 s are finely regulated by a second magnesium dication, thus coordinating the entry of a magnesium-bou
246 he substrate to the photoexcited TAC radical dication, thus demonstrating a new reactivity mode for t
247 lex formation which reflects the ease of the dication to form stacked dimeric motifs in the DNA minor
248 stants of a bis-(acetylguanidinium)ferrocene dication to various (di)carboxylates were determined thr
254 e and activation of the water-soluble uranyl dication (UO(2)(2+)) remains a challenging problem, as f
256 ne, 4, have been oxidized to their mono- and dications using tris(4-bromophenyl)aminium hexachloroant
257 The antiaromaticity shown by the parent dication was demonstrated for these dications with space
259 aphenylborate anionic moiety to the viologen dication was observed less than 1 mus after excitation.
260 d soon afterwards, a derivatized ferrocenium dication was only isolated in 2016 and the monoanion of
261 over the unsubstituted indenylidenefluorene dication was supported by (anti)aromatic (de)stabilizati
262 ituted benzylidene fluorenes to antiaromatic dications was attempted by electrochemical and chemical
264 , the indenyl system of indenylidenefluorene dications was less antiaromatic than the fluorenyl syste
265 ocations, and the generation of C-protonated dications was no longer favored due to the presence of e
268 barriers in its radical cation and diradical dication were predicted by the DFT computations to be wi
269 der strongly acidic conditions, C-protonated dications were generated with substantial diatropic prop
270 were more potent than pentamidine and seven dications were more effective than artemisinin against P
277 ompetitive effects, we used a combination of dications, which are intrinsically fluorescent and spect
278 acids, lead to intermediate N,C-diprotonated dications, which are involved in reactions with weak nuc
279 r relationship to those of the corresponding dications, which ESR reveals to be singlet species.
280 to the surface activity of the unsymmetrical dications, which results in a concurrent strong partitio
282 BPQT(4+) leads to the CBPQT(2(*+)) diradical dication while the P-BIPY(2+) unit is reduced to its P-B
283 series of dications including fluorenylidene dications whose UV-visible spectra are reported, as well
284 ations, the resulting CBPQT(2(*+)) diradical dication will migrate to the BIPY(*+) unit, resulting in
286 Addition of TFA afforded a C-protonated dication with a significantly increased diatropic ring c
288 he ion pair prior to interaction of the free dication with the host to produce a complex that is not
289 e shortest species is diamagnetic, while the dication with the longest bridge behaves as two essentia
292 bstituted phenyl rings were more stable than dications with m-substituted phenyl rings and dications
293 ene fluorenes; within each type of compound, dications with p-substituted phenyl rings were more stab
294 ications with m-substituted phenyl rings and dications with phenyl rings substituted with electron-do
295 ectron-donating groups were more stable than dications with phenyl rings substituted with electron-wi
296 e parent dication was demonstrated for these dications with spacers, although it was attenuated by th
297 f the single-crystalline 1(Bz)(2+) diradical dications with two different in nature counteranions, re
298 cribes the design and synthesis of two novel dications with unsymmetrical structures and their utiliz
300 f a monolayer of such indicators, the Ba(2+) dication would be captured by one of the molecules and g