Crystal structure of the sulfonium salts of natural azulenes

Abstract

The molecular and crystal structure of dimethyl-(1,4-dimethyl-7- ethylazulyl)-sulfonium perchlorate and dimethyl-(1,4-dimethyl-7-isopropylazulyl) -sulfonium perchlorate was determined by X-ray diffraction analysis. Their crystal structure is mainly determined by C-H...π intermolecular interactions. © 2008 Pleiades Publishing, Ltd.