Single-crystal-to-single-crystal transformation of diolefin derivatives in nanocrystals

Shu Takahashi; Hirohiko Miura; Hitoshi Kasai; Shuji Okada; Hidetoshi Oikawa; Hachiro Nakanishi

doi:10.1021/ja026564f

Single-crystal-to-single-crystal transformation of diolefin derivatives in nanocrystals

J Am Chem Soc. 2002 Sep 18;124(37):10944-5. doi: 10.1021/ja026564f.

Authors

Shu Takahashi¹, Hirohiko Miura, Hitoshi Kasai, Shuji Okada, Hidetoshi Oikawa, Hachiro Nakanishi

Affiliation

¹ Institute of Multidisciplinary Research for Advanced Materials, Tohoku University and CREST, Katahira, Aoba-ku, Sendai 980-8577, Japan.

PMID: 12224918
DOI: 10.1021/ja026564f

Abstract

Topochemical [2 + 2] cycloaddition polymerization of methyl p-phenylenediacrylate and 2,5-distyrylpyridine in nanocrystals, prepared by the reprecipitation method, were investigated in comparison with those in bulk crystals. The bulk single crystals, larger than 1 mum in size, broke into microcrystals with variety of size and shape in the course of polymerization. Interestingly, however, these nanocrystals show single-crystal-to-single-crystal transformation.