1256-57-1Relevant academic research and scientific papers
Tris(2-methyl-2-phenylpropyl)stannane derivatives, (Neo)3SnX, revisited. Comparison of crystal structures of (Neo)3SnX (X = Cl, Br, I, N3, NCS and OAc)
Bomfim, Jo?o A.S.,Filgueiras, Carlos A.L.,Alan Howie,Low, John N.,Skakle, Janet M.S.,Wardell, James L.,Wardell, Solange M.S.V.
, p. 1667 - 1676 (2002)
The 1H, 13C and 119Sn NMR and far-IR spectra of tris(neophyl)stannanes, (PhCMe2CH2)3SnX, (Neo)3SnX, [1: X = F, Cl, Br, 1, N3, NCS, OSn(Neo)3 and OAc], and the crystal structures of 1 (X = Br, I, N3, NCS and OAc) are reported. The compounds 1 (X = Br, I, N3 and NCS) and the previously reported 1 (X = Cl) all contain four-coordinate tin centers, with distorted tetrahedral geometries in the solid state. In contrast, 1 (X = OAc) is five-coordinate due to the acetate group acting as a chelating ligand. With the exception of 1 (X = Cl), all the compounds have entirely molecular structures with only van der Waals forces controlling the packing of the molecules. The molecules in 1 (X = Cl), with threefold axial symmetry, are packed head to tail in rows with weak C-H···Cl intermolecular contacts.
