4,4′-Dimethylazobenzene as a chemical actinometer

被引：3

作者：

Casimiro, Lorenzo ^{[1
]}

Andreoni, Leonardo ^{[2
,3
]}

Groppi, Jessica ^{[3
]}

Credi, Alberto ^{[3
,4
]}

Metivier, Remi ^{[1
]}

Silvi, Serena ^{[2
,3
]}

机构：

[1] Univ Paris Saclay, ENS Paris Saclay, CNRS, PPSM UMR 8531, F-91190 Gif Sur Yvette, France

[2] Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy

[3] Ist ISOF CNR, CLAN Ctr Light Activated Nanostruct, Via Gobetti 101, I-40129 Bologna, Italy

[4] Univ Bologna, Dipartimento Chim Ind Toso Montanari, I-40136 Bologna, Italy

来源：

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES | 2022年 / 21卷 / 05期

关键词：

PHOTOCHROMIC HETEROCYCLIC FULGIDES; QUANTUM YIELDS; PHOTOCHEMICAL ISOMERIZATION; CONVENIENT ACTINOMETER; POTASSIUM FERRIOXALATE; PHOTO-ISOMERIZATION; AZO-COMPOUNDS; AZOBENZENE; PHOTOISOMERIZATION; ANHYDRIDE;

D O I：

10.1007/s43630-021-00162-3

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Chemical actinometers are a useful tool in photochemistry, which allows to measure the photon flux of a light source to carry out quantitative analysis on photoreactions. The most commonly employed actinometers so far show minor drawbacks, such as difficult data treatment, parasite reactions, low stability or impossible reset. We propose herewith the use of 4,4'-dimethylazobenzene as a chemical actinometer. This compound undergoes a clean and efficient E/Z isomerization, approaching total conversion upon irradiation at 365 nm. Thanks to its properties, it can be used to determine the photon flux in the UV-visible region, with simple experimental methods and data treatment, and with the possibility to be reused after photochemical or thermal reset. [GRAPHICS] .

引用

页码：825 / 833

页数：9

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