title: Metal-free stabilization of monomeric antimony(I): a carbene-supported stibinidene.
abstract: A diamidocarbene was coordinated to an antimony(III) dichloride Lewis acid. Subsequent reduction with magnesium gave a monomeric, formally antimony(I) fragment that is supported by the diamidocarbene. Spectroscopic, crystallographic, and computational analyses demonstrated that the carbene ligand engages the antimony(I) center in π-backbonding resulting in a short (2.068(7) Å) Sb-C interaction that is comparable to those observed in known stibaalkenes.
authors.affiliation: Department of Chemistry and Biochemistry, Texas State University, 601 University Drive, San Marcos, TX 78666 (USA).
authors.forename: Christopher L
authors.initials: CL
authors.lastname: Dorsey
authors.forename: Ryan M
authors.initials: RM
authors.lastname: Mushinski
authors.forename: Todd W
authors.initials: TW
authors.lastname: Hudnall
keywords: antimony; carbenes; pi interactions; pnictogens; stibinidenes