title: On the chemistry of Zn-Zn bonds, RZn-ZnR (R = [{(2,6-Pri2C6H3)N(Me)C}2CH]): synthesis, structure, and computations.
abstract: Potassium reduction of RZn(mu-I)2Li(OEt2)2 (R = [{(2,6-Pri2C6H3)N(Me)C}2CH]) affords the second compound with a Zn-Zn bond, RZn-ZnR. The air- and moisture-sensitive title compound was characterized by 1H NMR, elemental analyses, and single-crystal X-ray diffraction. The Zn-Zn bond was determined to be 2.3586(7) A; this value is only about 0.05 A longer than the Zn-Zn bond reported for Cp*Zn-ZnCp* (Cp* = C5Me5), the first reported compound with a Zn-Zn bond. In addition, density functional theory (DFT) computations on related model RZn-ZnR compounds provide insight into the intriguing Zn-Zn bond.
authors.affiliation: Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, Georgia 30602-2556, USA.
authors.forename: Yuzhong
authors.initials: Y
authors.lastname: Wang
authors.forename: Brandon
authors.initials: B
authors.lastname: Quillian
authors.forename: Pingrong
authors.initials: P
authors.lastname: Wei
authors.forename: Hongyan
authors.initials: H
authors.lastname: Wang
authors.forename: Xiao-Juan
authors.initials: XJ
authors.lastname: Yang
authors.forename: Yaoming
authors.initials: Y
authors.lastname: Xie
authors.forename: R Bruce
authors.initials: RB
authors.lastname: King
authors.forename: Paul v R
authors.initials: Pv
authors.lastname: Schleyer
authors.forename: H Fritz
authors.initials: HF
authors.lastname: Schaefer
authors.forename: Gregory H
authors.initials: GH
authors.lastname: Robinson