title: New iron(III) bis(acetylide) compounds based on the iron cyclam motif.
abstract: New trans-[Fe(cyclam)(C≡CR)(2)]OTf compounds 2a/2b [cyclam = 1,4,8,11-tetraazacyclotetradecane, R = Si(i)Pr(3) (a) or Ph (b), and OTf = trifluoromethanesulfonate] were prepared from the reaction between trans-[Fe(cyclam)(OTf)(2)]OTf (1) and LiC≡CR. The trans arrangement of the acetylide ligands in 2 was established from the X-ray diffraction study of 2a, and the density functional theory calculations revealed significant dπ-π(C≡C) interactions.
authors.affiliation: Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Cao
authors.forename: William P
authors.initials: WP
authors.lastname: Forrest
authors.forename: Yang
authors.initials: Y
authors.lastname: Gao
authors.forename: Phillip E
authors.initials: PE
authors.lastname: Fanwick
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhang
authors.forename: Tong
authors.initials: T
authors.lastname: Ren