Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244990
Title: Co-ordination chemistry of the 1,3-dithiole-2-thione (DMIT) and 2-one-4,5-dithiolato (DMIO) compounds
Author: Chohan, Zahid H.
ISNI:       0000 0001 3546 1833
Awarding Body: University of Aberdeen
Current Institution: University of Aberdeen
Date of Award: 1997
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Abstract:
Various bis-dmio and -dmit zincate complexes, [Q]2[Zn(dmio)2] [Q = NEt4, 1,4-dmp, Ph4P and FcCH2NMe3] and [Q]2[Zn(dmit)2] [Q = FcCH2NMe3], have been prepared and characterised by IR, 1H and 13C-NMR spectral and elemental analysis data. The solid state structure of [FcCH2NMe3]2[Zn(dmio)2] was determined by X-ray crystallography. The complexes, [Q]2[Zn(dmio)2] and [Q]2[Zn(dmit)2], have been further used as precursors of various dmio and dmit complexes of tin (IV) and antimony (III) and (V). Metal exchange reactions with these complexes have also been investigated. The neutral tin compounds, R2Sn(dmio) [RR' = Me2, Et2, Bu2, Ph2 and MeO2CH2CH2] have been synthesised and characterised by IR, 1H, 13C and 119Sn-NMR spectral and elemental analysis data and for Me2Sn(dmio) by X-ray diffraction. The compounds, [Q][R2Sn(dmio)X] [Q = NEt4, FcCH2NMe3 ; R = Ph, Et ; X = Cl] and [Q][R2(dmit)X] [Q = FcCH2NMe3 ; R = Ph ; X = Cl], have been prepared and halide (X) exchange reactions in [Q][R2Sn(dmio)X] [Q = NEt4 ; R=Ph ; X=Cl] have been investigated using alkali metal halides and pseudohalides [NaI, NaBr and NaSCN]. The solid state structures of [NEt4][Ph2Sn(dmio)Cl], [NEt4][Ph2Sn(dmio)-SCN] and [NEt4][NEt4][Et2Sn(dmio)Br] have been determined. The monoestertin bis-dmio complexes, [Q][MeO2CCH2CH2Sn(dmio)2] [Q = NEt4, 1,4-dmp and Ph4P] and the neutral diestertin dmio complex, [(MeO2CCH2CH2)2-Sn(dmio)], have been synthesised and characterised. The solid state structure of [NEt4][MeO2CCH2CH2Sn(dmio)2] has been determined. Also, the tris-dmio and dmit complexes, [Q]2[Sn(dmit)3] [Q = NEt4, 1,4-dmp, Ph4P and FcCH2NME3] and [Q][Sn(dmit)3] [Q = FcCH2NMe3] have been prepared and characterised. The antimony (III) bis-dmio complexes, [Q][SbIII(dmio)2] [Q = NEt4, 1,4-dmp, Ph4P and FcCH2NMe3], and antimony (III) bis-dmit complex, [Q][SbIII(dmio)2] [Q = FcCH2NMe3], have been synthesised and fully characterised by IR, 1H and 13C-NMR spectral and elemental analysis data.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.244990  DOI: Not available
Keywords: Antimony; Zincate salts Chemistry, Inorganic
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