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The preparation and characterisation of bimetallic iridium(II) complexes containing derivatised bridging naphthalene-1,8-disulfur or 4,5-dithiolato acephenanthrylene ligands

Aucott, S M and Milton, H L and Robertson, S D and Slawin, A M Z and Woollins, J D (2004) The preparation and characterisation of bimetallic iridium(II) complexes containing derivatised bridging naphthalene-1,8-disulfur or 4,5-dithiolato acephenanthrylene ligands. Dalton Transactions (20). pp. 3347-3352. ISSN 1472-7773

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Abstract

Oxidative addition of the disulfide compounds naphtho[1,8-cd][1,2] dithiole, 2-tert-butylnaptho[1,8-cd][1,2] dithiole, 2,7-di-tert-butylnaphtho[1,8-cd][1,2] dithiole, 4,5-dithiaacephenanthrylene and the thio/sulfinyl and thio/sulfonyl compounds naphtho[1,8-cd][1,2] dithiole 1-oxide, and naphtho[1,8-cd][1,2] dithiole 1,1-dioxide respectively to [{Ir(mu-Cl)( cod)}(2)] give dinuclear Ir - Ir bonded Ir(II) compounds [{IrCl( cod)}(2)(mu(2)- 1,8- S-2- nap)] 1, [{IrCl(cod)}(2)(mu(2)- 1,8- S-2-2(t)Bu- nap)] 2, [{IrCl(cod)}(2)(mu(2)-1,8-S-2- 2,7-di-Bu-t-nap)}] 3, [{IrCl(cod)}(2)(mu(2)- 4,5- S-2-phenan)] 4, [{IrCl(cod)}(2)(mu(2)- 1- S, 8{ S(O)}- nap)] 5 and [{IrCl(cod)}(2)(mu(2)-1-S, 8-{S(O)(2)}- nap)] 6 where the di-sulfur ligands act as bridges between the two Ir( II) metal centres. The compounds were obtained in moderate to good yields as orange or deep red powders or crystalline solids. Five of the new complexes have been structurally characterised and were found to have Ir - Ir bond lengths in the range 2.7630(8) to 2.8113(11) Angstrom.

Item type: Article
ID code: 33875
Keywords: metal tetrathiolenes, molecular structures, crystal structures, oxidation, terathionaphthalene, electrochemistry, Chemistry
Subjects: Science > Chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Depositing user: Pure Administrator
Date Deposited: 18 Oct 2011 13:06
Last modified: 17 Jul 2013 09:58
URI: http://strathprints.strath.ac.uk/id/eprint/33875

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