metal-organic compounds
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The title compound, (C27H26P3)[AlCl4]·CH2Cl2, was isolated from a mixture containing the triphosphenium ion and its protonated derivative. The central cation ring is non-planar, as in the analogous hexachlorostannate (though the structures are not isomorphous), and the P-P distances are intermediate between those typical for single and double bonds.