Synthesis and crystal structure of tetrameric silver(I) 3,5-di-tert-butyl-pyrazolate

A tetrameric [Ag(μ-3,5-tBu2pz)]4 · CH2Cl2 (1 · CH2Cl2) has been prepared and structurally characterized. The four Ag-atoms are in an approximate rhombic arrangement with pyrazolato bridges alternating on either side of the Ag4-plane. A 1H NMR study shows partial decomposition of 1 to the mononuclear [Ag(3,5-tBu2pzH)2]+ in solution.

A new structurally characterized tetranuclear Ag(I)-pyrazolate completes the series of Group-11, [M(μ-3,5-tBu2-pz)]4, complexes, M = Cu, Ag, Au.Figure optionsDownload as PowerPoint slide