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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Samarat, Ali
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Publications (4/4 displayed)
- 2022Silver(I) Complexes Based on Oxadiazole-Functionalized α-Aminophosphonate: Synthesis, Structural Study, and Biological Activitiescitations
- 2019Synthesis, spectroscopic, and structural characterization of new functionalized gem-bisphosphonate complexes of tin(IV) chloride
- 2018Synthesis, spectroscopic, and structural characterization of new functionalized gem-bisphosphonate complexes of tin(IV) chloride
- 2018Synthesis, spectroscopic, and structural characterization of new functionalized gem -bisphosphonate complexes of tin(IV) chloride
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article
Synthesis, spectroscopic, and structural characterization of new functionalized gem-bisphosphonate complexes of tin(IV) chloride
Abstract
Bisphosphonates of the types X(P(O)(OEt)<sub>2</sub>)<sub>2</sub> (X = CH<sub>2</sub>=C (1a), CNCH<sub>2</sub>CH (1b) and PhCH<sub>2</sub>NCH<sub>2</sub>CH (1c)) react with SnCl<sub>4</sub> in anhydrous dichloromethane to produce the new tin(IV) adducts [SnCl<sub>4</sub>(1a)] (2a), [SnCl<sub>4</sub>(1b)] (2b) and [SnCl<sub>4</sub>(1c)] (2c) in 72-80% yields. These complexes were characterized using IR, multinuclear (<sup>1</sup>H, <sup>13</sup>C, <sup>31</sup>P, <sup>119</sup>Sn) NMR spectroscopy, elemental analysis, and in one case by single crystal X-ray diffraction. The NMR data show that the bisphosphonate ligands are coordinated to the tin center in a bidentate fashion forming cis octahedral tin complexes. Furthermore, the X-ray structure of complex 2b reveals that the bisphosphonate ligand is coordinated in a bidentate manner to the metal center in a distorted octahedral arrangement with Sn-O-P bond angles in the range 135.95(16)–137.99(18)°. The P=O and Sn-O bond lengths of 1.495(3)-1.497(3) and 2.134(3)-2.146(2) Å, respectively are in the order expected for phosphonate tin(IV) complexes. The results are discussed and compared with closely related analogues.