ISSN:
1572-8943
Keywords:
complexes
;
oxathioamidate
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Oxathioamidates (CSNR1 R 2COOKR 1=R 2=H (A),R 1=H andR 2=CH3 (B),R 1,=R 2=CH3 (C)) can act as O, S donors and form pentaatomic ring systems with divalent metals (M(II)=Mn, Fe, Co, Ni, Cu, Zn). Vibrational spectra and thermal analysis provide information on the amount and nature of associated water molecules. The dehydration of MA2(H2O)2 (M=Mn, Fe, Co, Ni) can be very well explained by the C.F.S.E. (crystal field stabilization energy) for weak field octahedral complexes. The complexes with ligand A and B decompose to form polymers by deprotonation on the thioamide group. The proposed structures are confirmed by the vibrational spectra. For ligand C no stable intermediates are formed during heating, degradation proceeds until metal sulphide remains.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01982694
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