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Red and yellow color aspects of compound 3-dicyclopropylmethylene-5-dicyanomethylene-4-diphenylmethylenetetrahydrofuran-2-one: Chromism effect
Journal article   Peer reviewed

Red and yellow color aspects of compound 3-dicyclopropylmethylene-5-dicyanomethylene-4-diphenylmethylenetetrahydrofuran-2-one: Chromism effect

Abdullah G. Al-Sehemi, Ahmad Irfan and Abdullah M. Asiri
Chinese chemical letters, Vol.25(4), pp.609-612
01/04/2014
DOI: https://doi.org/10.1016/j.cclet.2014.01.016

Abstract

Chemistry Chemistry, Multidisciplinary Physical Sciences Science & Technology
The title compound exists as yellow (1Y) and red (1R) crystals, but both gave red solutions. The intermolecular interactions between the CN parts of the crystals in 1Y are very weak. By the mechanical crushing as well as in solution 1Y again becomes red due to the absence of intermolecular interactions. We explain this color behavior by crystallochromism and solvation chromism. (C) 2014 Ahmad Irfan. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

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