Luminescent Tris(3-ethyl-1,5-diaza-3-azonia-7-phosphatricyclo[3.3.1.13,7]decane-P)gold(I) Tetraiodide Trihydrate, [(EtTPA)3Au]I4.3H2O

Abstract

The title complex, [Au(C8H17N3P)3]I4.3H2O, has the complex cation lying with its Au and associated I atom on a crystallographic threefold axis. The AuP3 moiety has distorted trigonal-planar geometry [the Au atom is 0.336 (3) Å from the P3 plane], with Au—P 2.334 (3), Au⋯I 2.9129 (12) Å and P—Au—P 117.97 (3)°. The asymmetric unit also has one iodide ion and one water molecule in general positions, with O⋯I distances [3.516 (2) and 3.576 (2) Å] consistent with O—H⋯I hydrogen bonding.