Photodimerizations and Crystal Structures of Thymine Derivatives Having a Long Alkyl Chain Connected with a Carbamate Bond

Takanori Sugiki, Norimitu Tohnai, Yuhua Wang, Takehiko Wada, Yoshiaki Inaki

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Photodimerizations of thymine derivatives having a long alkyl chain on a carbamate bond were investigated by irradiation of UV light at 280 nm in amorphous and crystalline film states. The amorphous films obtained by spin-coating from chloroform solution had higher initial rate constants for photodimerization relative to those of the crystalline films after annealing. X-Ray crystal structure analysis showed that the thymine derivatives had intermolecular hydrogen bonds that led to disadvantageous molecular orientation for the photodimerization. The photodimerization, however, is preferred in the localized layer structures of thymine units and alkyl chain.

Original languageEnglish
Pages (from-to)1777-1786
Number of pages10
JournalBulletin of the Chemical Society of Japan
Volume69
Issue number6
DOIs
Publication statusPublished - 1996 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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