反式尿刊酸波长依赖性光反应性的起源。
The origin of the wavelength-dependent photoreactivity of trans-urocanic acid.
作者信息
Hanson K M, Simon J D
机构信息
Department of Chemistry and Biochemistry, University of California at San Diego, La Jolla, USA.
出版信息
Photochem Photobiol. 1998 May;67(5):538-40.
PMID:9613237
Abstract
Two-color, pulsed-laser photoacoustic calorimetry is used to distinguish between multiple rotamer or electronic state contributions to the absorption spectrum of the epidermal chromophore trans-urocanic acid. The data definitively show that the wavelength-dependent photochemistry of trans-urocanic acid results from the presence of two distinct, weakly coupled electronic states absorbing between 264 nm and 310 nm.
摘要
双色脉冲激光光声量热法用于区分表皮发色团反式尿刊酸吸收光谱中多种旋转异构体或电子态的贡献。数据明确表明，反式尿刊酸的波长依赖性光化学是由于存在两个不同的、弱耦合的电子态，它们在264纳米至310纳米之间吸收。
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