“…The homoleptic dithiophosphates Ni[S 2 P(OR) 2 ] 2 (R = Me [4], Et [5], n-Pr [6], iso-Pr [7], iso-Bu [8], cyclo -C 6 H 11 [9], benzyl, ortho-tolyl, meta-tolyl [10], para-tolyl [11] ) are square-planar complexes. Many six-coordinated adducts like Ni[S 2 P(OR) 2 ] 2 Á2L (L = pyridine [12,13], 2,2 0 -bipyridyl [14], 1,10-phenanthroline [15][16][17][18], 2,9-dimethyl-1,10-phenanthroline [19] ) have been reported. Few five coordinated adducts like Ni[S 2 P(OR) 2 ]Á2L (R = Et; L = PPh 3 [20] or quinoline [16]) are also known.…”