911106-99-5Relevant academic research and scientific papers
Very large changes in bond length and bond angle in a heavy group 14 element alkyne analogue by modification of a remote ligand substituent
Fischer, Roland C.,Pu, Lihung,Fettinger, James C.,Brynda, Martin A.,Power, Philip P.
, p. 11366 - 11367 (2006)
The synthesis and characterization of the compound Me3Si-4-Ar′SnSnAr′-4-SiMe3 (Ar′-4-SiMe3 = C6H2-2,6-(C6H3-2,6-i-Pr2)2-4-SiMe3) shows that it has a Sn-Sn bond length = 3.066(1) A and a Sn-Sn-C bending angle of 99.25(14)°. These parameters differ by about0.4 A and about 26° from those previously reported for the closely related Ar′SnSnAr′ (Ar′ = C6H3-2,6-(C6H3-2,6-i-Pr2)2). The results show that, in accordance with the theoretical predictions by Nagase and Takagi, very small amounts of energy (ca. 5 kcal mol-1) separate structural isomers of distannynes that have large differences in their bonding parameters. Copyright
