R. Okawara, K. Yasuda
Feb 1, 1964
Citations
0
Influential Citations
41
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract The infrared spectra of trimethyltin hydroxide are examined in the solid state and in solution. These spectra are discussed in terms of a weak coordination of the oxygen atom with the tin atom. Ebulliometric molecular weight determinations of trimethyltin hydroxide in carbon tetrachloride, chloroform or benzene solution indicate a dimeric molecule [(CH 3 ) 3 SnOH] 2 . The SnO stretching vibration band in solid trimethyltin hydroxide is observed at 370 cm −1 , while in carbon tetrachloride solution it is found in the 500–580 cm −1 region. The OH stretching vibration band which is observed at 3620 cm −1 in the solid shifts to 3658 cm −1 in solution. Only one SnC stretching vibration band is observed at 540 cm −1 in the solid state, while in solution an additional absorption associated with the SnC stretching vibration is observed. These facts suggest that in the solid state trimethyltin hydroxide is a linear polymer in which the planar (CH 3 ) 3 Sn group is bridged by the -O(H)- unit, whereas in solution it has a dimeric structure, in which two SnO groups form a four-membered ring.