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Synthesis and structural characterization of Zn2+, Cd2+ and Hg2+ complexes with tripyrrolidinophosphine chalcogenides

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Date
01/10/2021
Author
Ebeid, Khaled
Ebnou, F.
M'haiham, M.
Carpenter-Warren, C.L.
Slawin, A.M.Z.
Woollins, J.D.
Ben Dhia, M.T.
Barry, A.H.
Sanhoury, M.A.K.
Keywords
Phosphine chalcogenides
Pyrrolidine
Metal complexes
NMR spectroscopy
QD Chemistry
DAS
AC
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Abstract
Six new complexes of zinc(II), cadmium(II) and mercury(II) chlorides with tripyrrolidinophosphine chalcogenides of the types [MCl2(Pyrr3PE)2] (M = Zn, E = S (1) or E = Se (2); M = Cd, E = S (3) or E = Se (4)) and [{HgCl(Pyrr3PE)}2(µ-Cl)2] (E = S (5) or Se (6)) have been prepared in yields of 66-92% by reaction of the ligands with metal chloride in ethanol and characterized by 1H and 31P NMR, IR, elemental analysis, conductivity, and single crystal X-ray diffraction analysis. The results show that the complexes are pseudo-tetrahedral containing coordinated chloride ions. Interestingly, the X-ray studies reveal that while the title ligands produce dinuclear complexes with Hg, their Cd and Zn complexes are mononuclear. The tetrahedral bond angles vary from 85.69(5)° to 126.25(4)° in dinuclear complexes 5 and 6 and from 93.51(3)° to 117.38(3)° in mononuclear species 2-4. The E = S bond lengths are in the range 1.999(9)-2.198(2) Å. The coordination properties of the title ligands are discussed and compared to those obtained for their bulkier counterparts.
Citation
Ebeid , K , Ebnou , F , M'haiham , M , Carpenter-Warren , C L , Slawin , A M Z , Woollins , J D , Ben Dhia , M T , Barry , A H & Sanhoury , M A K 2021 , ' Synthesis and structural characterization of Zn 2+ , Cd 2+ and Hg 2+ complexes with tripyrrolidinophosphine chalcogenides ' , Journal of Coordination Chemistry , vol. Latest Articles . https://doi.org/10.1080/00958972.2021.1984436
Publication
Journal of Coordination Chemistry
Status
Peer reviewed
DOI
https://doi.org/10.1080/00958972.2021.1984436
ISSN
0095-8972
Type
Journal article
Rights
Copyright © 2021 Informa UK Limited, trading as Taylor & Francis Group. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1080/00958972.2021.1984436
Description
Authors are grateful to the Tunisian Ministry of High Education and Scientific Research for support [grant number: LR99ES14] and to the French Service for Cooperation and Cultural Action (SCAC) in Nouakchott, Mauritania for a scholarship to KE.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/26118

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