The first spacer-bridged tetraorganodistannoxanes with a mixed double ladder structure
| Data(s) |
01/01/2001
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|---|---|
| Resumo |
The reaction of Me<sub>3</sub>SiCH<sub>2</sub>Cl<sub>2</sub>Sn(CH<sub>2</sub>)<sub>3</sub>SnCl<sub>2</sub>Ph (<b>6</b>) with (<i>t</i>Bu<sub>2</sub>SnO)<sub>3</sub> gave a statistical mixture of the corresponding tetraorganodistannoxanes whereas the reaction of the spacer-bridged ditin tetrachlorides RCl<sub>2</sub>Sn(CH<sub>2</sub>)<sub>4</sub>SnCl<sub>2</sub>R (<b>3</b>, R = Me<sub>3</sub>CCH<sub>2</sub>; <b>4</b>, R = Me<sub>2</sub>CHCH<sub>2</sub>; <b>10</b>, R = Me<sub>3</sub>SiCH<sub>2</sub>) with the polymeric spacer-bridged ditin oxides [R(O)Sn(CH<sub>2</sub>)<sub>4</sub>Sn(O)R]<sub><i>n</i></sub> (<b>7</b>, R = Me<sub>2</sub>CHCH<sub>2</sub>; <b>8</b>, R = Me<sub>3</sub>CCH<sub>2</sub>; <b>11</b>, R = Me<sub>3</sub>SiCH<sub>2</sub>) provided the mixed double ladder compounds {[R(Cl)Sn(CH<sub>2</sub>)<sub>4</sub>Sn(Cl)R][R(Cl)Sn(CH<sub>2</sub>)<sub>4</sub>Sn(Cl)R']O<sub>2</sub>}<sub>2</sub> (<b>9</b>, R = Me<sub>3</sub>CCH<sub>2</sub>, R' = Me<sub>2</sub>CHCH<sub>2</sub>; <b>12</b>, R = Me<sub>3</sub>CCH<sub>2</sub>, R' = Me<sub>3</sub>SiCH<sub>2</sub>) in almost quantitative yield. In solution, <b>9</b> and <b>12</b> are in equilibrium with their corresponding dimers, as was evidenced by <sup>119</sup>Sn NMR spectroscopy, molecular mass determination, and electrospray mass spectrometry. The molecular structures of <b>9</b> and <b>12</b> were established by single crystal X-ray diffraction.<br /> |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
Wiley Interscience |
| Relação |
http://dro.deakin.edu.au/eserv/DU:30008456/duthie-thefirst-2001.pdf http://dx.doi.org/10.1002/1099-0682(20011)2001:1 |
| Direitos |
2001, WILEY-VCH Verlag |
| Palavras-Chave | #tin #distannoxanes #oxo complexes #electrospray mass spectrometry |
| Tipo |
Journal Article |
