Journal of Organometallic Chemistry p. 319 - 325 (1991)
Update date:2022-07-30
Topics:
Weidenbruch, Manfred
Schlaefke, Josephin
Peters, Karl
Schnering, Hans Georg von
Treatment of di-t-butyl(chloro)-2,4,6-triisopropylphenylstannane with t-butyllithium gives tetra-t-butyl-1,2-bis(2,4,6-triisopropylphenyl)distannane (5) which shows restricted rotations about the Sn-C and/or Sn-Sn bonds even at high temperatures.The X-ray structure analysis of 5 reveals a very long Sn-Sn bond distance of 303.4(1) pm and an unusual arrangement of the substituents around the tin atoms.All groups adopt an eclipsed conformation with a syn orientation of the bulky aryl groups.
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