کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1325638 | 1499947 | 2008 | 5 صفحه PDF | دانلود رایگان |
The syntheses are reported of the novel heteroleptic organostannylenes [2,6-(ROCH2)2C6H3]SnCl (1, R = Me; 2, R = t-Bu) and of their tungstenpentacarbonyl complexes [2,6-(ROCH2)2C6H3](X)SnW(CO)5 (3, X = Cl, R = Me; 4, X = Cl, R = t-Bu; 5, X = H, R = Me). The compounds were characterized by means of elemental analyses, 1H, 13C, 119Sn NMR spectroscopies, electrospray mass spectrometry and in case of 3 and 4 also by single crystal X-ray diffraction analysis. For the two latter compounds the substituents bound at the ether oxygen atom control the strength of intramolecular O → Sn coordination. Thus, the O–Sn distances amount to 2.391(5)/2.389(5) (3) and 2.464(3)/2.513(3) Å (4).
The syntheses are reported of the novel intramolecularly coordinated organostannylenes 1 and 2, and of their transition metal complexes 3–5. The strength of the intramolecular O → Sn coordination is controlled by the identity of R, M, and X.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 693, Issues 21–22, 15 October 2008, Pages 3446–3450