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- W2305633026 endingPage "7869" @default.
- W2305633026 startingPage "7860" @default.
- W2305633026 abstract "A series of [5]carbohelicene derivatives substituted by electron-withdrawing maleimide and electron-donating methoxy, such as maleimide-substituted [5]carbohelicene (HeliIm) and methoxy-substituted HeliIm (MeO-HeliIm), were newly designed and synthesized to examine the electrochemical properties, excited-state dynamic and circularly polarized luminescence (CPL). First, electrochemical measurements and DFT calculations of [5]carbohelicene derivatives were performed by comparing with the structural isomers: picene derivatives. Introduction of an electron-withdrawing maleimide group onto a [5]carbohelicene core contributes to the stabilized LUMO state in HeliIm as compared to that of [5]carbohelicene (Heli), whereas the energy level of HOMO state in MeO-HeliIm increases by introducing electron-donating methoxy (MeO) groups onto a HeliIm skeleton. The HOMO–LUMO gap of MeO-HeliIm is smaller than those of HeliIm and Heli, which is similar to the steady-state spectroscopic measurements. The absolute fluorescence quantum yield (ΦFL) of HeliIm (0.37) largely increased as compared to [5]carbohelicene, Heli (0.04), whereas ΦFL of MeO-HeliIm (0.22) was slightly smaller than that of HeliIm. Theses photophysical processes including intersystem crossing are successfully explained by the kinetic discussions. Since [5]carbohelicene derivatives show the chirality, measurements of circular dichroism (CD) and circularly polarized luminescence (CPL) were successfully performed. In particular, HeliIm and MeO-HeliIm have provide excellent circularly polarized luminescence (CPL) and the values of the anisotropy factor glum were estimated to be ∼2.4 × 10–3 and ∼2.3 × 10–3, relatively. This is the first observation of CPL in [5]carbohelicene derivatives." @default.
- W2305633026 created "2016-06-24" @default.
- W2305633026 creator A5010231554 @default.
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- W2305633026 creator A5087216742 @default.
- W2305633026 date "2016-04-06" @default.
- W2305633026 modified "2023-10-18" @default.
- W2305633026 title "Synthetic Control of Photophysical Process and Circularly Polarized Luminescence of [5]Carbohelicene Derivatives Substituted by Maleimide Units" @default.
- W2305633026 cites W1902030905 @default.
- W2305633026 cites W1928867763 @default.
- W2305633026 cites W1959464420 @default.
- W2305633026 cites W1973386467 @default.
- W2305633026 cites W1982757204 @default.
- W2305633026 cites W1983899375 @default.
- W2305633026 cites W1992926979 @default.
- W2305633026 cites W1999441030 @default.
- W2305633026 cites W2006596816 @default.
- W2305633026 cites W2007731282 @default.
- W2305633026 cites W2011534234 @default.
- W2305633026 cites W2012206068 @default.
- W2305633026 cites W2012331842 @default.
- W2305633026 cites W2012673536 @default.
- W2305633026 cites W2013198274 @default.
- W2305633026 cites W2015327329 @default.
- W2305633026 cites W2017214097 @default.
- W2305633026 cites W2020099789 @default.
- W2305633026 cites W2021615813 @default.
- W2305633026 cites W2022007159 @default.
- W2305633026 cites W2023351868 @default.
- W2305633026 cites W2028772401 @default.
- W2305633026 cites W2032117849 @default.
- W2305633026 cites W2039309634 @default.
- W2305633026 cites W2039855244 @default.
- W2305633026 cites W2040357579 @default.
- W2305633026 cites W2041438978 @default.
- W2305633026 cites W2043838547 @default.
- W2305633026 cites W2045799919 @default.
- W2305633026 cites W2047735309 @default.
- W2305633026 cites W2054946583 @default.
- W2305633026 cites W2058957873 @default.
- W2305633026 cites W2062246067 @default.
- W2305633026 cites W2062959343 @default.
- W2305633026 cites W2069539698 @default.
- W2305633026 cites W2079324380 @default.
- W2305633026 cites W2086553951 @default.
- W2305633026 cites W2087427549 @default.
- W2305633026 cites W2088389061 @default.
- W2305633026 cites W2090648609 @default.
- W2305633026 cites W2094219230 @default.
- W2305633026 cites W2095218708 @default.
- W2305633026 cites W2096838648 @default.
- W2305633026 cites W2105704430 @default.
- W2305633026 cites W2107587028 @default.
- W2305633026 cites W2110565077 @default.
- W2305633026 cites W2110878106 @default.
- W2305633026 cites W2116054846 @default.
- W2305633026 cites W2117567310 @default.
- W2305633026 cites W2117876754 @default.
- W2305633026 cites W2120497385 @default.
- W2305633026 cites W2123126808 @default.
- W2305633026 cites W2130734249 @default.
- W2305633026 cites W2131111377 @default.
- W2305633026 cites W2136257055 @default.
- W2305633026 cites W2138281742 @default.
- W2305633026 cites W2140002597 @default.
- W2305633026 cites W2142869467 @default.
- W2305633026 cites W2144473538 @default.
- W2305633026 cites W2148890747 @default.
- W2305633026 cites W2149842921 @default.
- W2305633026 cites W2152632049 @default.
- W2305633026 cites W2157526148 @default.
- W2305633026 cites W2158468653 @default.
- W2305633026 cites W2165441392 @default.
- W2305633026 cites W2167832019 @default.
- W2305633026 cites W2169203808 @default.
- W2305633026 cites W2169341794 @default.
- W2305633026 cites W2174056229 @default.
- W2305633026 cites W2176510297 @default.
- W2305633026 cites W2196912466 @default.
- W2305633026 cites W2213919985 @default.
- W2305633026 cites W2231198851 @default.
- W2305633026 cites W2249068381 @default.
- W2305633026 cites W2254741927 @default.
- W2305633026 cites W2312641541 @default.
- W2305633026 cites W2313017771 @default.
- W2305633026 cites W2316276108 @default.
- W2305633026 cites W2320136922 @default.
- W2305633026 cites W2327962500 @default.
- W2305633026 cites W2330218484 @default.
- W2305633026 cites W2332194986 @default.
- W2305633026 cites W2333668062 @default.
- W2305633026 cites W2334668074 @default.