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Synthesis, characterization and structures of cadmium(II) and mercury(II) complexes with bis(dipiperidinylphosphino)methylamine dichalcogenides

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Woollins_2016_Poly_SynthesisComplexes_AAM.pdf (501.9Kb)
Date
24/11/2016
Author
Sanhoury, M. Abderrahmane
Mbarek, T.
Slawin, Alexandra Martha Zoya
Dhia, M. T. Ben
Khaddar, M. R.
Woollins, J. Derek
Keywords
Cadmium
Mercury complex
bis(dichlorophosphino)methylamine
31P
77Se
113Cd
NMR
QD Chemistry
Metadata
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Abstract
Two new bidentate phosphine dichalcogenide ligands of the type MeN(Pip2PE)2 [(Pip = piperidinyl; E = S ( 1 ) or Se ( 2 )] and their cadmium(II) and mercury(II) chloride complexes MCl2{MeN(Pip2PE)2} [M = Cd; E = S ( 3 ); Se ( 4 ) or M = Hg; L = S ( 5 ); Se ( 6 )] were prepared and characterized by elemental analysis, IR, multinuclear (31P, 77Se and 113Cd) NMR spectroscopy and single crystal X-ray analyses. Ligands 1 and 2 were found to adopt anti conformation structures in the solid state in which both P=E groups are trans to each other. Complexes 3 - 6 are comprised of one ligand coordinated in a bidentate fashion to the metal centre in a distorted tetrahedral arrangement [98.46(3)-121.24(4)°]. The P=S bond lengths of 1.999(15)-2.003(14) Å in the complex ( 3 ) are slightly elongated compared to those in free ligand [1.933(15)-1.950(14) Å]. The results are discussed and compared with closely related analogues.
Citation
Sanhoury , M A , Mbarek , T , Slawin , A M Z , Dhia , M T B , Khaddar , M R & Woollins , J D 2016 , ' Synthesis, characterization and structures of cadmium(II) and mercury(II) complexes with bis(dipiperidinylphosphino)methylamine dichalcogenides ' Polyhedron , vol 119 , pp. 106-111 . DOI: 10.1016/j.poly.2016.08.031
Publication
Polyhedron
Status
Peer reviewed
DOI
http://dx.doi.org/10.1016/j.poly.2016.08.031
ISSN
0277-5387
Type
Journal article
Rights
© 2016 Elsevier Ltd. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://dx.doi.org/10.1016/j.poly.2016.08.031
Description
The authors are grateful to the Tunisian Ministry of High Education and Scientific Research for financial support (LR99ES14) of this research.
Collections
  • Chemistry Research
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/11580

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