Study on the formation of mixed ligand oxorhenium and oxotechnetium complexes (SNS/S combination)

Theoretically, several complexes can be formed during the reaction between the tridentate aminedithiol ligand EtN(CH 2CH 2SH) 2, L1H 2, the monodentate thiol p-ClC 6H 4SH, L2H, and the Re VOCl 3(PPh 3) 2. Three main possibilities are: (i) neutral mixed ligand complexes ReOL1L2, the syn isomer, compl...

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Published in:Inorganica Chimica Acta 1999-11, Vol.295 (1), p.1-8
Main Authors: Papadopoulos, Minas, Pirmettis, Ioannis, Tsoukalas, Charalabos, Nock, Berthold, Maina, Theodosia, Raptopoulou, Catherine P., Pietzsch, Hans-Juergen, Friebe, Matthias, Spies, Hartmut, Johannsen, Bernd, Chiotellis, Efstratios
Format: Article
Language:English
Subjects:
Crystal structures
Mixed ligand complexes
Rhenium complexes
Technetium complexes
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Summary:Theoretically, several complexes can be formed during the reaction between the tridentate aminedithiol ligand EtN(CH 2CH 2SH) 2, L1H 2, the monodentate thiol p-ClC 6H 4SH, L2H, and the Re VOCl 3(PPh 3) 2. Three main possibilities are: (i) neutral mixed ligand complexes ReOL1L2, the syn isomer, complex 1 and the anti isomer, complex 2; (ii) binuclear complex of the tridentate ligand, (ReO) 2(L1) 3, complex 3 and (iii) anionic complex of the monothiol [ReO(L2) 4] −, complex 4. When a mixture of L1H 2/L2H, 1/1 ratio, is applied, the major product of the reaction is the syn isomer 1. A small amount of the anti isomer 2 is also isolated (yield
ISSN:0020-1693
1873-3255
DOI:10.1016/S0020-1693(99)00262-5