Synthesis and characterization of new mixed ligand complexes of Zn (II) and Hg (II) with dithiocarbamate and phosphines
DOI:
https://doi.org/10.25130/tjps.v25i1.214Keywords:
Diethyldithiocarbamate, Zn(II), Hg(e), phosphine, complexes.Abstract
Complexes of the type [M (Et2DTC)2]2 [M= Zn(1) or Hg(2)] were prepared from the reaction of mercury acetate or zinc acetate with sodium diethyldithiocarbamate trihydrate (NaEt2DTC.3H2O) in (1:2) molar ratio (metal: ligand) in mixture of MeOH and H2O as a solvent. Treatment equal molar of (1) or (2) with diphosphine ligands {where diphos: bis (diphenylphosphino) methane (dppm), 1,2-bis (diphenylphosphino) ethane (dppe) and 1,3-Bis (diphenylphosphino) propane (dppp)} afforded complexes of the type [Zn(Et2DTC)2(dppeO)] (3); [Zn(Et2DTC)2(dpppS)] (4a); [Zn(Et2DTC)2(dppp)] (4b); [Hg(Et2DTC)2(dppm)] (6a); [Hg(Et2DTC)2(µ-dppm)]2(6b); [Hg(Et2DTC)2(dppe)](7) and [Hg(Et2DTC)2(dppp)](8), or with two moles of triphenylphosphine (PPh3) afforded a complexes of the type [M(κ1-Et2DTC)2(PPh3)2] (5a, 9a) and [M(κ2-Et2DTC)2(PPh3)2] (5b, 9b) {M= Zn, Hg}. The prepared complexes were fully characterized by different technics such as IR, NMR (1H and 31P) spectroscopy, elemental analysis, and molar conductivity. Characterization data showed that the (Et2DTC) ligand in all of the prepared complexes was coordinated with metal through the sulfur atoms of CSS- group. The geometry of the complexes (1-9) were tetrahedral around the Zn(II) and Hg(II) ions, except isomers 5b and 9b are octahedral geometry. .
Downloads
Published
How to Cite
License
Copyright (c) 2022 Tikrit Journal of Pure Science
This work is licensed under a Creative Commons Attribution 4.0 International License.
Tikrit Journal of Pure Science is licensed under the Creative Commons Attribution 4.0 International License, which allows users to copy, create extracts, abstracts, and new works from the article, alter and revise the article, and make commercial use of the article (including reuse and/or resale of the article by commercial entities), provided the user gives appropriate credit (with a link to the formal publication through the relevant DOI), provides a link to the license, indicates if changes were made, and the licensor is not represented as endorsing the use made of the work. The authors hold the copyright for their published work on the Tikrit J. Pure Sci. website, while Tikrit J. Pure Sci. is responsible for appreciate citation of their work, which is released under CC-BY-4.0, enabling the unrestricted use, distribution, and reproduction of an article in any medium, provided that the original work is properly cited.
