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A new polymorph of phenylselenium trichloride

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Author

Bloomfield, Hannah R.
Ritch, Jamie S.

Uri

http://hdl.handle.net/10680/1743

Date

2019-11

Doi

10.1107/S2053229619013019

Citation

Bloomfield, H. R.; Ritch, J. S. Acta Cryst. (2019). C75, 1471–1474

Abstract

A second polymorph of phenylselenium trichloride, PhSeCl3 or C6H5Cl3Se, is disclosed, which is comprised of asymmetric chlorine-bridged noncovalent dimer units rather than polymeric chains. These dimers are each weakly bound to an adjacent dimer through noncovalent Se...Cl bonding interactions. Phenyl rings within each dimer are oriented in a syn fashion. Density functional theory (DFT) calculations reveal that the putative anti isomer is within 5 kJ mol-1 of the experimentally observed form. This structure represents the first additional polymorph discovered for an organoselenium trihalide compound.

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  • Jamie Ritch

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