title: 1,2-Diphosphinobenzene as a synthon for the 1,2,3-triphospha- and 2-arsa-1,3-diphosphaindenyl anions and a stable organo derivative of the P8 unit of Hittorf's phosphorus.
abstract: The electronic structure of the 1,2,3-triphosphaindenyl ligand suggests that it should exhibit enhanced pi-acceptor properties when compared to the eta(5)-indenyl system; this insight encouraged us to develop a simple synthetic pathway from 1,2-diphosphinobenzene to the 1,2,3-C(6)H(4)P(3) and 2-As-1,3-C(6)H(4)P(2) anions, both of which have been structurally characterised by X-ray crystallography; as a bonus from these studies we also obtained the first structurally characterised organo derivative of the P(8) unit present in Hittorf's phosphorus.
authors.affiliation: School of Chemistry, University of Bristol, Cantock's Close, Bristol, UK.
authors.forename: Craig P
authors.initials: CP
authors.lastname: Butts
authors.forename: Michael
authors.initials: M
authors.lastname: Green
authors.forename: Thomas N
authors.initials: TN
authors.lastname: Hooper
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Kilby
authors.forename: John E
authors.initials: JE
authors.lastname: McGrady
authors.forename: Dimitrios A
authors.initials: DA
authors.lastname: Pantazis
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Russell