Two crystalline toluene-soluble 1,2-organobis(phenylphosphido)dilithium compounds. The monomeric 1,2-C6H4(PPh)22 and the dimeric 2>2

Article abstract of DOI:10.1016/0022-328X(87)85160-4

Treatment of 1,2-C6H4(PHPh)2 with LiBuⁿ in n-C6H14 and TMEDA (TMEDA=Me2N2NMe2) affords 1,2-C6H4(PPh)22, which both in the crystal (Li-P 2.58(3) and 2.55(3) Angstroem) and in PhMe solution (J(31P-7Li) 36 Hz) has a monomeric struc