Transition metal complexes with bidentate ligands spanning trans‐positions part XV X‐ray structural and 31P‐NMR solution studies of some three‐coordinate silver complexes of 2,11‐bis[di(tert‐butyl)phosphinomethyl]benzo[c]phenathrene and related ligands

A series of three‐coordinate bis(dialkylphosphinomethyl)benzo[c]phenanthrene Ag(I) complexes, alkyl= t‐Bu, (1b), and cyclohexyl, (1c), anion = BF4, CIO4, CIO4, NO3, Cl, Br, I, have been prepared and thier 31P‐NMR characteristics recorded. The solid state structures of [Ag(1b)Br], [Ag(1b)Cl] and [Ag(1b)CIO4] have been determined by X‐ray diffraction. The Ag atom in these complexes shows distorted trigonal geometry. Selected bond lengths and angles are as follows: Ag‐P = 2.463(4) Å and 2.433(5) Å, P‐Ag‐P=141.6(2)° in the bromo complex, Ag‐P = 2.457(2) Å and 2.427(2) Å, P‐Ag‐P = 142.6(1)° ion the chloro complex, and Ag‐P = 2.394(2) and 2.393 (2) Å, P‐AG‐P = 161.5(1)° in the perchlorato complex.