Synthese und Struktur von Ag4[(PhN3)2C6H4]2 (en)2, einem vierkernigen Silber(I)komplex mit 1,2-Bis(phenyltriazenido)benzol als Ligand / Synthesis and Structure of Ag4[(PhN3)2C6H4]2 (en)2, a Tetranuclear Silver(I) Complex with 1,2-Bis(phenyltriazenido)benzene as Ligand

Abstract

Ag4[(PhN3)2C6H4]2(en)2 is obtained by the reaction of [Ag(NH3)2]+ with 1,2-bis- (phenyltriazeno)benzene and ethylenediamine. It crystallizes in the monoclinic space group P21/c with a = 1064.9(2), b = 2041.8(3), c = 1008.5(3) pm, β = 101.37(2)°, Z = 2. In the centrosymmetrical tetranuclear complex, the four Ag+ ions form a zigzag chain with Ag-Ag distances of 293.34 and 280.42 pm. Ethylenediamine molecules chelate the two terminal Ag atoms of this chain. Each of the 1,2-bis(phenyltriazeno)benzene ligands in the deprotonated bis(triazenido) form [(PhN3)2C6H4]2- is bridging three Ag+ ions. The Ag+ ions are coordinated by three N atoms in a trigonal planar arrangement with Ag-N distances between 214.0 and 241.2 pm.