Synthesis, spectroscopic and structural studies on six- and eight-coordinate phosphane and arsane complexes of titanium(IV) halides

Hart, Richard, Levason, William, Patel, Bhavesh and Reid, Gillian (2001) Synthesis, spectroscopic and structural studies on six- and eight-coordinate phosphane and arsane complexes of titanium(IV) halides. European Journal of Inorganic Chemistry, (11), 2927-2933. (doi:10.1002/1099-0682(200111)2001:11<2927::AID-EJIC2927>3.0.CO;2-3).

Abstract

The six-coordinate complexes [TiX4(L-L)] [X = Cl or Br; L-L = Ph2PCH2PPh2, Ph2P(CH2)(2)PPh2, Ph2P(CH2)(3)PPh2, o-C6H4(PPh2)(2), o-C6H4(PMe2)(2), Ph2As(CH2)(2)AsPh2, o-C6H4(AsMe2)(2) or MeC(CH2AsMe2)(3)] and the eight-coordinate complexes [TiX4(L-L)(2)] [L-L = a-C6H4(PMe2)(2) or o-C6H4(AsMe2)(2)] have been prepared and characterised by solution H-1 and P-31(H-1) NMR spectroscopy, IR and UV/Visible spectroscopy and microanalyses. The crystal structures of [TiCl4{o-C6H4(PMe2)(2)}], [TiCl4{o-C6H4(PMe2)(2)}(2)], [TiBr4{o-C6H4(PMe2)(2)}(2)], [TiBr4{o-C6H4(AsMe2)(2)}(2)] and [TiBr4{MeC-(CH2AsMe2)(3)}] are described and permit detailed comparisons to be made between the six- and eight-coordinate species and between the phosphane and arsane species. The crystal structure of the zwitterionic [TiCl5(Ph2PCH2PHPh2)] is also reported.

This record has no associated files available for download.

Contributors

Author: William Levason

Author: Gillian Reid

Download statistics