Journal
CRYSTENGCOMM
Volume 11, Issue 7, Pages 1362-1372Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b822682b
Keywords
-
Categories
Funding
- Australian Research Council (DD, ERTT)
- National University of Singapore (NUS)
Ask authors/readers for more resources
Crystallography shows that with the exception of the n - 1 and n - 6 derivatives, molecules of dinuclear Ph3Sn(CH2)(n)SnPh3, n = 1 to 8, display extended conformations where a pair of triphenyltin moieties are linked by methylene bridges of varying length. Discernable supramolecular aggregation patterns stabilised by C-H center dot center dot center dot pi contacts lead to chains and ladders or even 2D arrays in most of the solid-state structures. In all but the n = 1 molecule, with inherent steric hindrance which precludes the adoption of molecular symmetry, symmetry is evident in all of the geometry optimised structures calculated using DFT methods; non-systematic variations in geometric parameters apparent in the experimental structures do not persist in the theoretical structures. The greatest disparity between the experimental and theoretical structures is found for the n = 6 compound, featuring a hexamethylene bridge. The linear conformation calculated in the gas-phase distorts to form a curved molecule to allow the more efficient crystal packing of spherical molecules, as for the spherical n = 1 molecule. In the remaining structures, the global crystal packing is based on the stacking of rod-like molecules.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available