Triisopropoxyniobium(V) and tantalum(V)bis-O,O′-dialkyl dithiophosphates

✍ Scribed by Sushil K. Pandey; Ghanshyam Srivastava; Ram C. Mehrotra

• Book ID: 104636134
• Publisher: Springer
• Year: 1993
• Tongue: English
• Weight: 229 KB
• Volume: 18
• Category: Article
• ISSN: 0340-4285
• DOI: 10.1007/bf00136044

✦ Synopsis

Dithiophosphates 31 tantalum(V)bis-O,O'-dialkyl dithio-

Summary Triisopropoxy bis(O,O'-dialkyl dithiophosphates), (i-PrO)3M[S2P(OR)2]z (M=Nb v, TaV; R=n-Pr, i-Pr, i-Bu and Ph) have been prepared by reacting the appropriate triisopropoxymetal(V)dichloride, (i-PrO)3MC12 (1 tool) with sodium/ammonium dialkyl dithiophosphates (2 tools)in THF. The monomeric products which are viscous liquids, soluble in common organic solvents and highly susceptible to hydrolysis, were characterized by i.r. and n.m.r, spectra which indicate a bidentate mode of attachment of dithiophosphato groups to the metal.