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The [Ni{(Ph 2 P) 2 N-S-CHMePh-P,P′}Br 2 ] complex was prepared by a ligand-exchange reaction between [Ni(dme)Br 2 ] (dme is 1,2-dimethoxyethane) and the P–N–P ligand (Ph 2 P) 2 N(S-CHMePh). X-ray crystallography revealed a square planar NiP 2 Br 2 coordination sphere, i.e., the presence of a four-membered Ni–P–N–P ring. The same structural...
The reaction of the monooxidised imidodiphosphinate ligand Ph 2 P(Se)NHPPh 2 with NiCl 2 ·6H 2 O in the presence of t BuOK afforded [Ni{Ph 2 P(Se)NPPh 2 -Se,P} 2 ] (1), which was characterized by UV–Vis, IR and NMR spectroscopies. X-ray crystallographic studies on a single crystal of 1 revealed the trans Ni(Se,P) 2 arrangement...
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