Preparation, thermal analysis and spectral characterization of the 1:1 complexes of mercury(II) halides and pseudohalides with 3,4,5,6-tetrahydropyrimidine-2-thione. Crystal structures of bis(3,4,5,6-tetrahydropyrimidine-2-thione-s)mercury(II) tetrachloro and tetrabromomercurate(II)

Autor(en)
Zora Popovic, Dubravka Matkovic-Calogovic, Gordana Pavlovic, Zeljka Soldin, Gerald Giester, Masa Rajic, D Vikic-Topic
Abstrakt

Mercury(II) complexes of the type HgX2(H4pymtH) (X = Cl-, Br-, I-, SCN-, CN-; H4pymtH = 3,4,5,6-tetrahydropyrimidine-2-thione) have been obtained and structurally characterized by X-ray diffraction, IR, 1H and 13C NMR spectroscopy. Single crystal X-ray structure analysis was performed for the chloro and bromo complexes, which were found to be isostructural. Their crystal structures consist of [Hg(H4pymtH)2]2+ complex cations and [HgX4]2- complex anions interconnected by Hg?X contacts into puckered sheets. The crystal structure of H4pymtH has been redetermined to greater accuracy. In solution NMR spectra of complexes, the greatest complexation effects were found on the 13C chemical shift of the thioketo-carbon atom and on the 1H chemical shift of the NH protons.

Organisation(en)
Institut für Mineralogie und Kristallographie
Externe Organisation(en)
University of Zagreb, Brodarski Institute, Marine Research and Special Technologies, Rudjer Boskovic Institute
Journal
Croatica Chemica Acta
Band
74
Seiten
359-380
Anzahl der Seiten
22
ISSN
0011-1643
Publikationsdatum
2001
Peer-reviewed
Ja
ÖFOS 2012
1051 Geologie, Mineralogie
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/6ed67e0b-4bec-4645-8d4f-9c2a402f56db