Dalton Transactions
Paper
first examples of mercury complexes with [O]2[N]P(S)-based
ligands. The complexes are one dimensional coordination
polymers {Hg2Cl4L1}n (1), {HgBr2L1}n (2) and {Hg2Cl4L2}n (3),
[L1 = (EtO)2P(S)(NHC6H4NH)P(S)(OEt)2 and L2 = (EtO)2P(S)
(NC4H8N)P(S)(OEt)2]. The mercury atoms in all three com-
plexes adopt an almost trigonal pyramidal shape, HgCl3S for
1/3 and HgBr2S2 for 2, and the Hg–S bond in the three com-
plexes and the Hg–Cl bond formed by the bridging chlorine in
1 and 3 are responsible for the construction of the polymeric
structure. The difference observed in the stoichiometry of
metal to the thiophosphoramide ligand in 1 and 3 with
respect to that in 2 is a result of the contribution of bridging
chlorido ligands in the formation of the Hg2Cl2 ring, however,
the molar ratio 2 : 1 of HgX2 (X = Cl and Br) to ligand was used
for the preparation of all three complexes. The chlorine-con-
taining complexes are soluble in some solvents, such as
CH3CN, and the bromine-containing complex is insoluble in
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Conflicts of interest
There are no conflicts to declare.
Acknowledgements
Support for this investigation by the Ferdowsi University of
Mashhad is gratefully acknowledged (project 3/33548). We
thank the Russian Foundation for Basic Research (project
16-33-00942) and the Ministry of Education and Science of
The Russian Federation (project 4.619.2014/K). The authors
appreciatively acknowledge the Cambridge Crystallographic
Data Centre for access to the CSD Enterprise.
25 F. D. Sokolov, M. G. Babashkina, F. Fayon,
A. I. Rakhmatullin, D. A. Safin, T. Pape and F. E. Hahn,
J. Organomet. Chem., 2009, 694, 167.
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Trans., 2007, 2760.
Notes and references
1 B. Moulton and M. J. Zaworotko, Chem. Rev., 2001, 101, 27 Y. Ren, B. Cheng, J. Zhang, H. Zang, W. Kang and C. Ding,
1629.
Front. Chem. China, 2008, 3, 304.
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Dalton Trans., 2019, 48, 17908–17918 | 17917