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Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Bis[5-(pyridin-2-yl)pyrazine-2-carbo-nitrile-κN,N]silver(I) perchlorate
Fan Zhang1, Zhi-Wei Wang, Yong-Li Yang
1Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China.
Abstract:
In the mononuclear title complex, [Ag(C(10)H(6)N(4))(2)]ClO(4), the Ag(I) ion is surrounded by two 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands, forming a considerably distorted square-planar N(4)-coordination geometry, with two short and two long Ag-N distances. Each perchlorate anion links two mononuclear coordination units through C-H⋯O(perchlorate) hydrogen bonding, forming an infinite tape structure along [110]. Inter-molecular π-π stacking inter-actions between adjacent pyridine and pyrazine rings [centroid-centroid distances of 3.777 (3) and 3.879 (2) Å] further assemble the tape motifs into a three-dimensional supra-molecular structure.
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