On the chemistry of Zn-Zn bonds, RZn-ZnR (R = [{(2,6-Pri2C6H3)N(Me)C}2CH]): synthesis, structure, and computations |
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| Authors: | Wang Yuzhong Quillian Brandon Wei Pingrong Wang Hongyan Yang Xiao-Juan Xie Yaoming King R Bruce Schleyer Paul v R Schaefer H Fritz Robinson Gregory H |
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| Affiliation: | Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, Georgia 30602-2556, USA. |
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| 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. |
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