Abstract

The crystal structure of the title compound, di-μ-diazo-aminobenzenido-N 1 :N3-dicopper(I)(Cu-Cu)), [Cu 2 (C 12 H 10 N 3 ) 2 ], has been redetermined at 150 K with diffractometer data. The molecule is a dimer in which the two Cu atoms are bridged by two DAB ligands (DAB is diazoaminobenzene). Each Cu atom is bonded to the other Cu atom [Cu-Cu 2.4405 (10) A] and to one N atom of each DAB ligand in such a way that each metal center shows a distorted T-shaped environment. The results provide the same qualitative picture as the previous structure, but with the expected differences attributable to the use of low-temperature diffractometer data. The structure had previously been determined from room-temperature photographic data by Brown & Dunitz.

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