Exploiting Charge-Transfer States for Maximizing Intersystem Crossing Yields in Organic Photoredox Catalysts.
Exploiting Charge-Transfer States for Maximizing Intersystem Crossing Yields in Organic Photoredox Catalysts.
复制标题
DOI:
10.1021/jacs.8b01001
复制
发表时间:
2018-04-11
影响因子:
15
通讯作者:
Damrauer NH
中科院分区:
文献类型:
--
作者:
Sartor SM;McCarthy BG;Pearson RM;Miyake GM;Damrauer NH
A key feature of prominent transition-metal-containing photoredox catalysts (PCs) is high quantum yield access to long-lived excited states characterized by a change in spin multiplicity. For organic PCs, challenges emerge for promoting excited-state intersystem crossing (ISC), particularly when potent excited-state reductants are desired. Herein, we report a design exploiting orthogonal π-systems and an intermediate-energy charge-transfer excited state to maximize ISC yields (ΦISC) in a highly reducing (E0* = −1.7 V vs SCE), visible-light-absorbing phenoxazine-based PC. Simple substitution of N-phenyl for N-naphthyl is shown to dramatically increase ΦISC from 0.11 to 0.91 without altering catalytically important properties, such as E0*.
登录
查看更多内容
影响因子:
15
作者:
McCarthy BG;Pearson RM;Lim CH;Sartor SM;Damrauer NH;Miyake GM
通讯作者:
Miyake GM
影响因子:
15
作者:
Pearson RM;Lim CH;McCarthy BG;Musgrave CB;Miyake GM
通讯作者:
Miyake GM
影响因子:
21.8
作者:
Yoon, Tehshik P.;Ischay, Michael A.;Du, Juana
通讯作者:
Du, Juana
影响因子:
3.4
作者:
WELLER, A;STAERK, H;TREICHEL, R
通讯作者:
TREICHEL, R
影响因子:
4
作者:
NAKASHIMA, N;MURAKAWA, M;MATAGA, N
通讯作者:
MATAGA, N