학술논문
Preparation and X-Ray Crystal-Structure of 4,4'-Triselenobis(pent-3-en-2-one)
Document Type
Article
Author
Source
Australian Journal of Chemistry; 1988, Vol. 41 Issue: 10 p1601-1606, 6p
Subject
Language
ISSN
00049425; 14450038
Abstract
The title compound was prepared by the reaction of sodium hydrogen selenide with 4-chloropent-3-en-2-one. The compound appears unstable with respect to higher oligomers of the SeC (CH3)CHC(CH3)O ( seacac ) unit. X-ray crystallography reveals the unusual structure in which a central 'complexed' selenium atom is coordinated to the two selenium atoms of the seacac ligands which are in their normal cis conformations. The oxygen atoms are uncoordinated and as far removed from the coordination environment of the central selenium atom as possible. Crystals of Se( seacac )2 are orthorhombic with space group P21212, and cell dimension a 9.761(2), b 14.828(3) and c 4.6447(5)Ǻ.