Red-light operable photosensitizer with symmetry-breaking charge transfer induced intersystem crossing for polymerization of methyl methacrylate

被引：0

作者：

Mahmood, Zafar ^{[1
]}

Cai, Shuqing ^{[1
]}

Rehmat, Noreen ^{[1
]}

Di Donato, Mariangela ^{[3
]}

Zhao, Jianzhang ^{[2
]}

Sun, Shanshan ^{[4
,5
]}

Li, Mingde ^{[4
,5
]}

Huo, Yanping ^{[1
]}

Ji, Shaomin ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Peoples R China

[2] Dalian Univ Technol, E208 West Campus,2 Ling-Gong Rd, Dalian 116024, Peoples R China

[3] LENS European Lab Nonlinear Spect, Via N Carrara1, I-50019 Sesto Fiorentino, Italy

[4] Shantou Univ, Dept Chem, Shantou 515063, Peoples R China

[5] Shantou Univ, Key Lab Preparat & Applicat Ordered Struct Mat Gua, Shantou 515063, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2024年 / 60卷 / 17期

基金：

中国国家自然科学基金;

关键词：

TRIPLET EXCITED-STATES; MOLECULAR DESIGN; RECOMBINATION; SEPARATION; PERYLENE;

D O I：

10.1039/d3cc06017a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a red light-activated zincII bis(dipyrrin) symmetry breaking charge transfer (SBCT) architecture, showing a large molar absorption coefficient (epsilon = 15.4 x 104 M-1 cm-1), high reactive singlet oxygen generation efficiency (phi Delta approximate to 0.8) and long-lived triplet state (tau T = 150 mu s) compared to the donor-acceptor analogue dipyrrin-BF2 complex, highlighting the superiority of the SBCT approach. For the first time, we demonstrated the potential of a SBCT scaffold in red-light-induced methyl methacrylate (MMA) polymerization, using a dual photocatalyst excitation approach. The first example of a red-light operable photosensitizer with efficient symmetry breaking charge transfer induced intersystem crossing (SBCT-ISC) is presented and potential in the polymerization of methyl methacrylate is demonstrated.

引用

页码：2385 / 2388

页数：4

共 38 条

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