Abstract
New heteroleptic mercury(ii) complexes [Hg4(S2CNPr2)6(NO3)2] (1) and [Hg4(S2CNPr2)4Cl4] (2) were synthesized and characterized by single-crystal X-ray dif raction and 13C and 15N MAS NMR spectroscopy. In these complexes, the metal atoms are linked in pairs by bridging dipropyldithiocarbamate ligands (Pr2Dtc) to form tetranuclear cations and molecules. The further structural organization of compound 1 to the polymeric chains [Hg4(S2CNPr2)6(NO3)2]n occurs due to the linking of [Hg4(S2CNPr2)6]2+ cations by pairs of bridging nitrate groups. The formation of the supramolecular polymeric structure of 2 is determined by pairwise secondary Hg⋯Cl bonds between the cyclic [Hg4(S2CNPr2)4Cl4] molecules, in which the central eight-membered metallocycle [Hg4S4] adopts a distorted chair conformation. The thermal behavior of compounds 1 and 2 was studied by simultaneous thermal analysis.
Original language | English |
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Pages (from-to) | 782-792 |
Number of pages | 11 |
Journal | Russian Chemical Bulletin |
Volume | 68 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Apr 2019 |
Keywords
- dialkyldithiocarbamates
- polymeric compounds
- secondary interactions
- supramolecular self-organization
- tetranuclear mercury(ii) complexes
- thermal behavior
- MOLECULAR-STRUCTURE
- CHEMISORPTION ACTIVITY
- N-15
- CRYSTAL
- HG(II) COMPLEXES
- CP/MAS NMR
- DITHIOCARBAMATE
- C-13
- MAS NMR-SPECTRA
- RAY-DIFFRACTION