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新型BODIPY共聚物的时间分辨光谱研究及其作为析氢光敏剂的潜在用途。

A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution.

作者信息

Cullen Aoibhín A, Heintz Katharina, O'Reilly Laura, Long Conor, Heise Andreas, Murphy Robert, Karlsson Joshua, Gibson Elizabeth, Greetham Gregory M, Towrie Michael, Pryce Mary T

机构信息

School of Chemical Sciences, Dublin City University, Dublin, Ireland.

Department of Chemistry, Royal College of Surgeons in Ireland, Dublin, Ireland.

出版信息

Front Chem. 2020 Oct 19;8:584060. doi: 10.3389/fchem.2020.584060. eCollection 2020.

DOI:10.3389/fchem.2020.584060
PMID:33195076
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7604388/
Abstract

A novel 4,4-difuoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) copolymer with diethynylbenzene has been synthesised, and its ability to act as a photosensitiser for the photocatalytic generation of hydrogen was investigated by time-resolved spectroscopic techniques spanning the ps- to ns-timescales. Both transient absorption and time-resolved infrared spectroscopy were used to probe the excited state dynamics of this photosensitising unit in a variety of solvents. These studies indicated how environmental factors can influence the photophysics of the BODIPY polymer. A homogeneous photocatalytic hydrogen evolution system has been developed using the BODIPY copolymer and cobaloxime which provides hydrogen evolution rates of 319 μmol h g after 24 h of visible irradiation.

摘要

一种新型的4,4-二氟-4-硼-3a,4a-二氮杂-s-茚（BODIPY）与二乙炔基苯的共聚物已被合成，并通过跨越皮秒到纳秒时间尺度的时间分辨光谱技术研究了其作为光催化剂光催化产氢的能力。瞬态吸收光谱和时间分辨红外光谱都被用于探测这种光敏单元在各种溶剂中的激发态动力学。这些研究表明了环境因素如何影响BODIPY聚合物的光物理性质。利用BODIPY共聚物和钴肟开发了一种均相光催化析氢体系，在可见光照射24小时后，该体系的析氢速率为319 μmol h g 。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/df5deb02ffb4/fchem-08-584060-g0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/b52090a1d189/fchem-08-584060-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/308a45431251/fchem-08-584060-g0002.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/3faa807eae18/fchem-08-584060-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/065fd1139c17/fchem-08-584060-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/713e22eec5b8/fchem-08-584060-g0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/df5deb02ffb4/fchem-08-584060-g0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/b52090a1d189/fchem-08-584060-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/308a45431251/fchem-08-584060-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/538f5455565f/fchem-08-584060-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/03f2a90cff7c/fchem-08-584060-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/76a0747875b5/fchem-08-584060-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/a368e7696cee/fchem-08-584060-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/3faa807eae18/fchem-08-584060-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/065fd1139c17/fchem-08-584060-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/713e22eec5b8/fchem-08-584060-g0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc0f/7604388/df5deb02ffb4/fchem-08-584060-g0010.jpg

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