ライフサイエンスコーパス: intersystem crossing

1 (fluorescence, radiationless relaxation, and intersystem crossing).

2 r states, affording new insight into reverse intersystem crossing.

3 s to why Q(1) does not spontaneously undergo intersystem crossing.

4 of NN*, which only accelerates radical pair intersystem crossing.

5 data are consistent with heavy-atom assisted intersystem crossing.

6 twisted styrenes undergo exceptionally rapid intersystem crossing.

7 antly via relatively rapid, weakly activated intersystem crossing.

8 in this complex, resulting in less efficient intersystem crossing.

9 inglet state over the triplet state enabling intersystem crossing.

10 " state to be a triplet dark state formed by intersystem crossing.

11 neling, on the triplet manifold, followed by intersystem crossing.

12 units, implying a change of the mechanism of intersystem crossing.

13 stems, notably a new channel, intermolecular intersystem crossing.

14 pulation and spin addressability through the intersystem crossing.

15 ls in an NV center that does not rely on its intersystem crossing.

16 generation of (3*)PDI by spin-orbit-induced intersystem crossing.

17 separation competes rather unfavorably with intersystem crossing--75% of all charge pairs decay into

18 ents for conversion to diradical 16 prior to intersystem crossing and beta scission to form the phosp

19 The processes of ultrafast intersystem crossing and charge transfer vary between th

20 +/- 1 kcal/mol) and decay predominantly via intersystem crossing and fluorescence at room temperatur

21 al that (1*)PDI undergoes ultrafast enhanced intersystem crossing and internal conversion with tau ap

22 ess provided an unprecedented enhancement of intersystem crossing and subsequent switching to the pho

23 e pairs are shown to be subject to efficient intersystem crossing and terminally recombine into F8BT

24 the silyl group tuned the triplet to singlet intersystem crossing and the electrophilicity) and on th

25 mbination of minimized aggregation, enhanced intersystem crossing, and altered excited-state lifetime

26 exciplex deactivation pathways-fluorescence, intersystem crossing, and nonradiative decay-are likely

27 yields of fluorescence, internal conversion, intersystem crossing, and singlet oxygen.

28 two unactivated processes, fluorescence and intersystem crossing, and two activated processes, trans

29 ted state suggests that internal conversion, intersystem crossing, and/or dissociation is a concern w

30 The data on Cr(acac)(3) indicate that intersystem crossing associated with the (4)T(2) --> (2)

31 processes due to the internal conversion and intersystem crossing at the Franck-Condon state geometry

32 iplet fusion at NPB sites not E-type reverse intersystem crossing because of the presence of the NPB

33 lated by a single electron spin flip and the intersystem crossing becomes inhibited, as indicated by

34 ite isolation of porphyrin ligands, enhanced intersystem crossing by heavy Hf centers, and facile (1)

35 ed, either photoinduced electron transfer or intersystem crossing compete successfully with the ring-

36 The work demonstrated the viability of intersystem crossing (conical intersection located) lead

37 As such, a fairly efficient radical ion pair intersystem crossing converts the initially formed singl

38 n in GQ-1 is slowed by enhanced radical-pair intersystem crossing driven by the greater number of hyp

39 trajectory (nuclear motion, charge-transfer, intersystem crossing, etc.) dictates the availability of

40 ., (silox)3M + ole) where M = Nb, leading to intersystem crossing events that facilitate dissociation

41 let states of the molecules make the reverse intersystem crossing feasible at room temperature even i

42 tates, which undergo subsequent radical pair intersystem crossing followed by charge recombination to

43 Intersystem crossing followed by ring closure gives the

44 p for charge recombination from radical pair intersystem crossing for n < 4 to coherent superexchange

45 distributions, branching ratios and role of intersystem crossing for the multichannel, addition-elim

46 t state of the myoglobin ((3)MMb) created by intersystem crossing from (1)MMb likewise undergoes redu

47 vibrationally hot S(0) of 1 forms 2, whereas intersystem crossing from S(1K) to T(1K) results in 3.

48 iplet-state SO2 ( (3)B1), which results from intersystem crossing from the excited singlet ( (1)A2/ (

49 ations for (3)DOM* were enhanced, suggesting intersystem crossing from the singlet state to the tripl

50 Thus, intersystem crossing from the triplet biradical surface

51 The efficiency of intersystem crossing from the two singlet state conforma

52 the charge transfer dynamics and the rate of intersystem crossing in metallacycles of different geome

53 ls of spin polarization readily generated by intersystem crossing in photo-excited pentacene and othe

54 The requisite intersystem crossing in the open-shell structure is acco

55 this model can be used to tune the enhanced intersystem crossing in three-spin systems.

56 ir-lifetime and the magnetic field-sensitive intersystem crossing induced by the hyperfine interactio

57 normal routes open to the porphyrin monomer (intersystem crossing, internal conversion, fluorescence)

58 mechanism exploits spin-selective molecular intersystem crossing into pentacene's triplet ground sta

59 thiobases is intimately linked to efficient intersystem crossing into reactive triplet states, the m

60 of a zinc oxochlorin indicates the yield of intersystem crossing is >70%.

61 found that the ring strain dependent rate of intersystem crossing is the rate-limiting step in the fo

62 e that (6,5) SWNTs exhibit rapid S(1)-->T(1) intersystem crossing (ISC) (tau(ISC) ~20 ps), a sharp T(

63 While the singlet to triplet intersystem crossing (ISC) for the titled complexes is a

64 in-orbit (SO) interaction and focused on the intersystem crossing (ISC) from the first excited single

65 n-orbit coupling (SOC), and thus facilitates intersystem crossing (ISC) from the singlet to triplet m

66 e channel, a submerged barrier to insertion, intersystem crossing (ISC) from the triplet to the singl

67 The rate of intersystem crossing (ISC) in hexafluorobenzene and othe

68 ossibility of the faster energy transfer via intersystem crossing (ISC) in the metalated derivatives

69 ts are rationalized in terms of the rates of intersystem crossing (ISC) in the newly formed geminate

70 a carbene) a slow rate of singlet to triplet intersystem crossing (isc) in this solvent because the o

71 1G*) of the unsubstituted tolane showed that intersystem crossing (ISC) is favored with large spin-or

72 Intersystem crossing (ISC) is improved through the heavy

73 Ultrafast, reversible intersystem crossing (ISC) is reported under ambient con

74 Intersystem crossing (ISC) occurs in hundreds of femtose

75 ction, was presumed to occur via S(1)-->T(1) intersystem crossing (ISC) of the sensitizer.

76 fetime is shorter than the time required for intersystem crossing (ISC) of the triplet radical pair t

77 Its temperature-independent and activated intersystem crossing (ISC) pathways are at least 18 and

78 th NIR absorptivity up to 850 nm, near-unity intersystem crossing (ISC) quantum yields (PhiISC), and

79 ating solvents on singlet-to-triplet carbene intersystem crossing (ISC) rates has been studied with d

80 t singlet state S1 that undergoes picosecond intersystem crossing (ISC) to the lowest triplet T1.

81 state has a lifetime of ~70 ns and undergoes intersystem crossing (ISC) to the T1 state.

82 The singlet nitrene undergoes intersystem crossing (ISC) to the triplet nitrene in apr

83 ions; (iii) it enhances the quantum yield of intersystem crossing (ISC), i.e., it is capable of sensi

84 A methyl group retards the rate of intersystem crossing (ISC), relative to a hydrogen atom,

85 other critical factor affecting the rate of intersystem crossing (ISC)--singlet-triplet energy separ

86 point and the S1 equilibrium geometry favors intersystem crossing (ISC).

87 ial energy surfaces (PESs) interconnected by intersystem crossing (ISC).

88 te into the reactive triplet excited states (intersystem crossing: ISC) and/or to the radical-anion (

89 The high quantum yield and efficient reverse intersystem crossing leading to delayed fluorescence emi

90 ast population of the triplet state, with an intersystem crossing lifetime of 180 +/- 40 fs-the short

91 ssing lifetime of 180 +/- 40 fs-the shortest intersystem crossing lifetime of any DNA base derivative

92 t population of the triplet manifold with an intersystem crossing lifetime of hundreds of picoseconds

93 ly explain why thiobases exhibit the fastest intersystem crossing lifetimes measured to date among bi

94 let state denitrogenation and the subsequent intersystem crossing-limited product formation are slowe

95 The energy barrier for this reverse intersystem crossing mechanism is proportional to the ex

96 its formation from (1*)P by the radical-pair intersystem crossing mechanism.

97 olarization pattern it can be concluded that intersystem crossing occurs predominantly into in-plane

98 benzene upper singlet states, as well as the intersystem crossing of nitrobenzene.

99 restrictions on trans-cis isomerization and intersystem crossing of photo-excited A2E.

100 Triplet-exciton formation through intersystem crossing of photogenerated singlet excitons

101 Intersystem crossing of the S(1) excited state to the az

102 ation of the T1 state ((3)pipi*) in AcAc via intersystem crossing on a 1.5 +/- 0.2 ps time scale.

103 study provides an insight into dynamics and intersystem crossing pathways of low-lying singlet and t

104 onic spectra or unactivated fluorescence and intersystem crossing pathways.

105 ited-state reactions: harvesting product via intersystem crossing; photoisomerizations; bond-breaking

106 3)[FeO2] is likely to have a relatively high intersystem crossing point (ICP) relative to 1b' + N2 to

107 being a complex mixture and its low average intersystem crossing quantum yield (PhiISC).

108 se are improved with derivatives with higher intersystem crossing quantum yields, which can be promot

109 RS) and k(CRT), respectively, as well as the intersystem crossing rate constant, k(ST).

110 ve important effects on the magnitude of the intersystem crossing rate constant, showing a 1.2-, 3.2-

111 a heavy halogen atom to further increase the intersystem crossing rate of the coupled units.

112 iments show an almost 2-fold increase in the intersystem crossing rate on going from polar aprotic to

113 A change in the intersystem crossing rate ratio due to increased dielect

114 increase of the relative value of P(x), the intersystem crossing rate to the T(x) sublevel.

115 The S1* state has a decreased intersystem crossing rate when compared to monomeric ter

116 spin-orbit coupling, which in turn enhances intersystem crossing rates in the guest molecule.

117 to its excited (1)B1 state followed by rapid intersystem crossing, reacts directly with water to form

118 nt molecule, in the order consistent with an intersystem crossing-related heavy atom effect.

119 of the (5)MLCT (or (7)MLCT, in the event of intersystem crossing) responds to the structural modific

120 let charge separation is more efficient than intersystem crossing, resulting in inefficient formation

121 of (1)(PTZ(+.)-FL(n)-PDI(-.)), radical pair intersystem crossing results in formation of (3)(PTZ(+.)

122 We have proposed a model to describe reverse intersystem crossing (rISC) in donor-acceptor charge tra

123 )P-NI(-*)), which undergo rapid radical pair intersystem crossing (RP-ISC) to produce the triplet RPs

124 econd time scale is mediated by radical pair intersystem crossing (RP-ISC), as evidenced by the obser

125 ong spin-orbit coupling for highly efficient intersystem-crossing S1 --> Tn and phosphorescence T1 --

126 deactivation of the excited state, including intersystem crossing, solvent quenching, and excited-sta

127 ssion of the S-O bond which is coupled to an intersystem crossing step, thus producing the sulfide an

128 Radical pair intersystem crossing subsequently produces (3)(MeOAn(+)(

129 excited-states, dephasing time, and enhanced intersystem crossing that can also influence ET.

130 This article reports the intersystem crossing timescale (tauISC ) of the most com

131 e imine 7, which presumably is formed from 3 intersystem crossing to 7.

132 Finally, intersystem crossing to a ferromagnetically coupled Ru(I

133 -Pn(+*)-PDI(-*)) that undergoes radical pair intersystem crossing to form (3)(TIPS-Pn(+*)-PDI(-*)), w

134 OH group, and as a consequence, it undergoes intersystem crossing to form both E- and Z-3a.

135 This complex undergoes intersystem crossing to form the open-shell singlet dira

136 tau = approximately 60 ns), which undergoes intersystem crossing to form Z-3a (lambda(max) = 380 nm,

137 However, 2b only undergoes intersystem crossing to form Z-3b (lambda(max) = 380 nm,

138 lifetime (tau = 7.5 ns), and a high yield of intersystem crossing to give the triplet state (Phi isc

139 the cyclopropene product (3), and undergoes intersystem crossing to ground triplet carbene ((3)2).

140 econds at ambient temperature, after reverse intersystem crossing to singlets.

141 ,III) H(superoxo) structure, which undergoes intersystem crossing to the antiferromagnetic surface an

142 onic excitation, the quartet trimers undergo intersystem crossing to the doublet manifold, followed b

143 iton unit to the benzil, (3) benzil-centered intersystem crossing to the localized benzil triplet sta

144 ohexane, respectively, and are controlled by intersystem crossing to the lower energy triplet state.

145 he (1)npi* population is proposed to undergo intersystem crossing to the lowest triplet state in comp

146 lifetime of a few nanoseconds and undergoes intersystem crossing to the pyrene-like triplet state wi

147 reacts efficiently with oxygen and decays by intersystem crossing to the singlet surface.

148 xcited heptanal is believed to undergo rapid intersystem crossing to the triplet manifold and from th

149 ase of bromine radicals, is competitive with intersystem crossing to the triplet state of the bromina

150 r backbone to the complex where it undergoes intersystem crossing to the triplet state of the complex

151 in fluorescence unquenching, restoration of intersystem crossing to the triplet state, and singlet o

152 report that the BTz core promotes efficient intersystem crossing to the triplet state, while the pre

153 In all cases, intersystem crossing to the triplet states is not observ

154 plet oxyallyl diradicals (3)9 that decay via intersystem crossing to their more stable singlet isomer

155 The singlet absorption decays by intersystem crossing to triplet diphenylcarbene at rates

156 Upon photoexcitation, (1*)Aq undergoes rapid intersystem crossing to yield (3*)Aq, which is capable o

157 Intersystem crossing triggers a sudden increase of the v

158 8 ps) was observed in protic solvents, while intersystem crossing was observed in aprotic solvents.

159 The rate constants of singlet to triplet intersystem crossing were determined at this temperature

160 The absence of intersystem crossing, which often gives rise to large ex

161 read out through its special spin-selective intersystem crossing, while microwave electron spin reso

162 Subsequent radical pair intersystem crossing within these spin-correlated RPs le

163 n experiments have implied a tripling of the intersystem crossing yield at the onset of fission.

164 Subsequent radical pair intersystem crossing yields 3(DMJ+*-An-Phn-NI-*).

165 may substantially overestimate excited-state intersystem crossing yields, raising questions with rega