Synthesis, electronic structure, and absorption spectra of the merocyanines derived from pyranes and benzopyranes

Autor:	Alexei Kachkovskii, V.V. Kurdiukov, S. Schrader, M. A. Kudinova, A. I. Tolmachev, S. Ksenzov
Rok vydání:	2007
Předmět:	Dipole chemistry.chemical_compound Absorption spectroscopy chemistry Absorption band Process Chemistry and Technology General Chemical Engineering Bathochromic shift Merocyanine Electronic structure Electron Photochemistry Excitation
Zdroj:	Dyes and Pigments. 74:348-356
ISSN:	0143-7208
DOI:	10.1016/j.dyepig.2006.02.019
Popis:	The synthesis, peculiarities of the electron structure and spectral properties of the merocyanine derivatives of the pyranes and benzopyranes with nitrogen-containing heterocycles as donor end groups are presented. It is established that an annelation of the pyrane residue leads to bathochromic shift of the absorption band. Because of the considerable change in the dipole momentum upon excitation, the merocyanines studied show high sensitivity to the solvent polarity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8bf627746ee1946758a06470d5255883 https://doi.org/10.1016/j.dyepig.2006.02.019 Zobrazit plný text záznamu Full Text from ScienceDirect