Md. Francis et al., Synthesis and structural characterisation of the first hexaphosphastrontocene [Sr(eta(5)-P3C2Bu2t)(2)] and its pyrazine adduct, CHEM COMMUN, (20), 2000, pp. 2027-2028
Treatment of SrI2 with 2 equivalents of K[P3C2Bu2t] affords the hexaphospha
strontocene [{Sr(eta(5)-P3C2Bu2t)(2)}(infinity)] which is polymeric in the
solid state; treatment of this complex with an excess of pyrazine leads to
the corresponding Lewis base adduct [{Sr(eta(5)-P3C2Bu2t)(2)(mu-C4H4N2)}(in
finity)] which is also polymeric in the solid state.