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

Synthesis, spectroscopic and structural studies on six- and eight-coordinate phosphane and arsane complexes of titanium(IV) halides
Synthesis, spectroscopic and structural studies on six- and eight-coordinate phosphane and arsane complexes of titanium(IV) halides
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.
titanium, halides, phosphanes, arsanes, structure elucidation, oxidation-states, compound, crystal
1434-1948
2927-2933
Hart, Richard
4908bfee-deb5-4bc7-b05c-220ac8ea2948
Levason, William
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Patel, Bhavesh
d08a7519-a670-4a58-9155-0810d9c85f7a
Reid, Gillian
37d35b11-40ce-48c5-a68e-f6ce04cd4037
Hart, Richard
4908bfee-deb5-4bc7-b05c-220ac8ea2948
Levason, William
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Patel, Bhavesh
d08a7519-a670-4a58-9155-0810d9c85f7a
Reid, Gillian
37d35b11-40ce-48c5-a68e-f6ce04cd4037

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).

Record type: Article

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.

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More information

Published date: 1 November 2001
Keywords: titanium, halides, phosphanes, arsanes, structure elucidation, oxidation-states, compound, crystal

Identifiers

Local EPrints ID: 19513
URI: http://eprints.soton.ac.uk/id/eprint/19513
ISSN: 1434-1948
PURE UUID: a87aecaf-1cf0-459b-bab6-f9ddc923a766
ORCID for William Levason: ORCID iD orcid.org/0000-0003-3540-0971
ORCID for Gillian Reid: ORCID iD orcid.org/0000-0001-5349-3468

Catalogue record

Date deposited: 15 Feb 2006
Last modified: 05 Nov 2019 02:08

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