Structure and optical properties of thermochromic schiff bases. Charge transfer interaction and proton transfer in the N-tetrachlorosalicylideneaniline and N-tetrachlorosalicylidene-1-pyrenylamine crystals.
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概要
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Two kinds of <I>N</I>-salicylideneaniline derivatives, <I>N</I>-tetrachlorosalicylideneaniline (CL4SA) and <I>N</I>-tetrachlorosalicylidene-1-pyrenylamine (CL4SPY), have been prepared and subjected to structural and optical studies in the crystalline state. A thermochromic-type behavior of the former crystal has been observed as a shift of the absorption edge, while that of the latter crystal is much less pronounced. Fairly short O–H···N hydrogen bonds have been found in both compounds through crystallographic studies, which may be mainly due to a steric effect of chlorine substituents. The difference in the proton transfer behavior of CL4SA and CL4SPY should presumably be caused by an intermolecular charge-transfer interaction in the latter crystal.
著者
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Mitani Tadaoki
Institute For Molecular Science
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Maruyama Yusei
Institute for Molecular Science
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Inabe Tamotsu
Institute for Molecular Science
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Okamoto Hiroshi
Institute For Materials Research Tohoku University
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Gautier-Luneau Isabelle
Graduate University for Advanced Studies and Institute for Molecular Science
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Hoshino Naomi
Graduate University for Advanced Studies and Institute for Molecular Science
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Okaniwa Kaoru
Graduate University for Advanced Studies and Institute for Molecular Science
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Nagashima Umpei
Institute for Molecular Science
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