A new class of eight-membered Sn2P2O4 heterocycles. Crystal structure and electrolytic dissociation in solution of cyclo-[R2Sn(OPPh2O)2SnR2](O3SCF3)2(R=Me, t-Bu)
Data(s) |
01/01/2003
|
---|---|
Resumo |
The syntheses of <i>cyclo</i>-[R<sub>2</sub>Sn(OPPh<sub>2</sub>O)<sub>2</sub>SnR<sub>2</sub>](O<sub>3</sub>SCF<sub>3</sub>)<sub>2</sub> (R = Me (<b>1</b>), <i>t</i>-Bu (<b>2</b>)) by the consecutive reaction of R<sub>2</sub>SnO (R = Me, <i>t</i>-Bu) with triflic acid and diphenylphosphinic acid are presented. In the solid state, <b>1</b> and <b>2</b> were investigated by <sup>119</sup>Sn MAS and <sup>31</sup>P MAS NMR spectroscopy as well as X-ray crystallography and appear to exist as ion pairs of <i>cyclo-</i>[R<sub>2</sub>Sn(OPPh<sub>2</sub>O)<sub>2</sub>SnR<sub>2</sub>]<sup>2+</sup> dications and triflate anions. In solution, <b>1</b> and <b>2</b> are involved in extensive equilibria processes featuring cationic diorganotin(IV) species with Sn-O-P linkages, as evidenced by <sup>119</sup>Sn and <sup>31</sup>P NMR spectroscopy, electrospray mass spectrometry, and conductivity measurements. <br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
ACS Publications |
Relação |
http://dro.deakin.edu.au/eserv/DU:30001961/duthie-anewclass-2003.pdf http://dx.doi.org/10.1021/om021042u |
Direitos |
2003, American Chemical Society |
Tipo |
Journal Article |