(2,2'-Bipyridyl)bis(O,O'-dimethyl dithiophosphato)nickel(II)

Abstract

Abstract. (C 10H8N2)

(2,2′-Bipyridyl-κ2N,N′)bis(O,O′-diisopropyl dithiophosphato-κ2S,S′)nickel(II)

“…The distorted octahedral geometry in (I) ( Fig. 1) is based on a cis-N 2 S 4 donor set and is in agreement with those found in related structures, namely R = Me (Arora et al, 1977), R = n Bu [You et al, 1986; see Hu (1999) for space group revision] and R = i Bu (Berdugo & Tiekink, 2006). The Ni-S distances (Table 1) lie in the relatively narrow range 2.4548 (9) (Ni-S1) to 2.4964 (9) Å (Ni-S4) and the P-S distances follow the expected trends in that the shorter bond is always associated with the less tightly bound S atom.…”

Ligand and coordination-plane distortions in platinum(II) complexes of isomers of dimethyl-2,2′-bipyridine

“…Hazell examined distortions for 551 metal complexes from the Cambridge Structural Database (Allen, 2002) containing 2,2 0 -bipyridine (bipy) or substituted 2,2 0 -bipyridines and calculated that the twist angle ( T ) ranges from 0.0 to 26.1 and the bow angle ( B ) ranges from 0.0 to 19.8 . No substantial twisting or bowing distortions were observed for the unsubstituted bipy ligand in the (bipy)PtCl 2 (Connick et al, 1996) and (bipy)PdCl 2 (Canty et al, 1992) complexes (Table 2), although the small distortions that do occur may be the result of packing forces (Arora et al, 1977;Camus et al, 1977;Newkome et al, 1982). These complexes do show typical P (see below) values, but di values are small or zero (Table 2).…”