Synthese und Kristallstruktur von [Ag(PhN3C6H4N3(H)Ph)]4, einem tetrameren Ag(I)-Komplex mit überbrückenden Bistriazenido-Liganden / Synthesis and Crystal Structure of [Ag(PhN3C6H4N3(H)Ph)]4, a Tetrameric Ag(I) Complex with Bridging Bistriazenido Ligands

Abstract

[Ag(PhN3C6H4N3(H)Ph)]4 is obtained by the reaction of AgNO3 with [PhN3C6H4N3(H)Ph)]Na in tetrahydrofurane in form of brown crystals. The crystal structure determination (orthorhombic space group Pbcn, a = 1989.7(8), b = 1917.5(3), c = 1767.1(4) pm, Z = 4, 1784 reflections for 200 parameters, final R = 0.059) shows the complex to be isotypic to the previous described copper analogue. The complex is built of a rhombus of four silver atoms and four bridging bistriazenido units. One nitrogen atom of a neutral nitrogen chain completes the coordination sphere of each silver atom to a distorted trigonal bipyramidal environment of two other silver atoms and three nitrogen atoms. The Ag–Ag distances are in the range from 279.9 to 310.3 pm, the Ag–N distances from 217 to 236 pm.