Patent ID: 7755826
Filing Date: 2010-07-13
Classification: C07D,C07F,C09K

Abstract:
1. The photochromic compound which is a diarylethene-containing coordination compound in which the diarylethene contains part of a monocyclic or polycyclic structure with one or more donor atoms or heteroatoms coordinated to a coordination unit [M], which contains an acceptor atom, M, expressed by the general formula (I): where unit B is porphyrin or azaporphyrin, each donor atom X is nitrogen, n is 3, [M] represents a coordination unit containing an acceptor atom M wherein the acceptor atom M is rhenium(I), zinc(II), ruthenium(II), osmium(II), rhodium(III), iridium(III), gold(III), gold(I), silver(I), copper(I), copper(II), platinum(II), palladium(II), iron(II), cobalt(III), chromium(III), cadmium(II), or boron(III), R 1 and R 6 individually represent an alkyl group or an alkoxy group, and R 2 to R 5 individually represent atoms or groups selected from hydrogen atom, halogen atom, hydroxyl group, alkyl group, alkoxy group, alkynyl group, cyano group, nitro group, alkylcarbonyl group, alkoxycarbonyl group, perfluoroalkyl group, aryl group, cycloalkyl group, arylcarbonyl group, aryloxycarbonyl group, mono- or dialkylaminocarbonyl group, alkylcarbonyloxy group, arylcarbonyloxy group, aryloxy group, alkoxycarbonyl group, and aryloxycarbonyloxy group.