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  • Title: Synthesis and structural characterisation of a novel phosphine-borane-stabilised dicarbanion and an unusual bis(phosphine-borane).
    Author: Izod K, McFarlane W, Tyson BV, Clegg W, Harrington RW.
    Journal: Chem Commun (Camb); 2004 Mar 07; (5):570-1. PubMed ID: 14973612.
    Abstract:
    The reaction between the phosphine-borane-substituted alkene [Pr(n)(2)P(BH(3))](Me(3)Si)C[double bond]CH(2) and elemental lithium in THF yields the complex [(pmdeta)Li[Pr(n)(2)P(BH(3))](Me(3)Si)CCH(2)](2)(2b) after recrystallisation; an X-ray crystallographic study of 2b reveals that the lithium is bound to the BH(3) hydrogens of the ligand, with no Li-C(carbanion) contact.
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