2017/11/22 by Masahiko Taniguchi, Jonathan S. Lindsey · 2 citations
Chemistry · #Chemistry and Stereochemistry Studies #Various Chemistry Research Topics #Analytical Chemistry and Chromatography
paper · doi:10.1111/php.12860
Abstract The design of new molecules for photochemical studies typically requires knowledge of spectral features of pertinent chromophores beginning with the absorption spectrum ( λ abs ) and accompanying molar absorption coefficient ( ε , m −1 cm −1 ) and often extending to the fluorescence spectrum ( λ em ) and fluorescence quantum yield (Φ f ), where the fluorescence properties may be of direct relevance or useful as proxies to gain insight into the nature of the first excited singlet state. Photochem CAD databases, developed over a period of 30 years, are described here. The previous databases for 150 compounds have been expanded to encompass 339 compounds for which absorption spectra (including ε values), fluorescence spectra (including Φ f values) and references to the primary literature have been included where available (552 spectra altogether). The compounds exhibit spectra in the ultraviolet, visible and/or near‐infrared spectral regions. The compound classes and number of members include acridines (21), aromatic hydrocarbons (41), arylmethane dyes (11), azo dyes (18), biomolecules (18), chlorins/bacteriochlorins (16), coumarins (14), cyanine dyes (19), dipyrrins (7), heterocycles (26), miscellaneous dyes (13), oligophenylenes (13), oligopyrroles (6), perylenes (5), phthalocyanines (11), polycyclic aromatic hydrocarbons (16), polyenes/polyynes (10), porphyrins (34), quinones (24) and xanthenes (15). A database of 31 solar spectra also is included.