Direct evidence of a multicentre halogen bond: unexpected contraction of the P–XXX–P fragment in triphenylphosphine dihalides

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Title: Direct evidence of a multicentre halogen bond: unexpected contraction of the P–XXX–P fragment in triphenylphosphine dihalides
Authors: Nikitin, Kirill
Müller-Bunz, Helge
Gilheany, Declan G.
Permanent link: http://hdl.handle.net/10197/4955
Date: 21-Dec-2012
Abstract: Triphenylhalophosphonium halides, Ph3PX2, form crystals comprising bridged linear cations [Ph3P-X-X-X-PPh3]+ where the X3 bridge is shortened from 6.56 Å in Cl-Cl-Cl to 6.37 Å in the Br-Br-Br system.  It is proposed that this structure is stabilized by five-center/six-electron (5c-6e) hypervalent interactions.
Type of material: Journal Article
Publisher: Royal Society of Chemistry
Journal: Chemical Communications
Volume: 49
Issue: 14
Start page: 1434
End page: 1436
Copyright (published version): 2012, Royal Society of Chemistry
Keywords: Multicentre hypervalent interactionBridged linear cationsPhosphonium dihalidesTrihalophosphonium dicationsChemical bonding
DOI: 10.1039/c2cc38363b
Language: en
Status of Item: Peer reviewed
Appears in Collections:Chemistry Research Collection

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