Abstract
Bisphosphonates of the types X(P(O)(OEt)2)2 (X = CH2=C (1a), CNCH2CH (1b) and PhCH2NCH2CH (1c)) react with SnCl4 in anhydrous dichloromethane to produce the new tin(IV) adducts [SnCl4(1a)] (2a), [SnCl4(1b)] (2b) and [SnCl4(1c)] (2c) in 72-80% yields. These complexes were characterized using IR, multinuclear (1H, 13C, 31P, 119Sn) 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.
Original language | English |
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Journal | Chemical Data Collections |
Volume | In press |
Early online date | 22 Nov 2018 |
DOIs | |
Publication status | E-pub ahead of print - 22 Nov 2018 |
Keywords
- gem-Bisphosphonates
- tin(IV) chloride
- 119Sn and 31P NMR
- X-ray structure
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Synthesis, spectroscopic, and structural characterization of new functionalized gem-bisphosphonate complexes of tin(IV) chloride (dataset)
Yahyaoui, M. (Creator), Sanhoury, M. A. (Creator), Carpenter-Warren, C. L. (Creator), Slawin, A. M. Z. (Creator), Woollins, J. D. (Creator), Touil, S. (Creator) & Samarat, A. (Creator), Cambridge Crystallographic Data Centre, 15 Aug 2018
https://dx.doi.org/10.5517/ccdc.csd.cc20hv5k
Dataset