Triphenyl-p-biphenylylsilane, diphenyl-di-p-biphenylylsilane, phenyltri-p-biphenylylsilane and tetra-p-biphenylylsilane have been synthesized in 80-90% yields by modified Wurtz reactions between appropriate phenylchlorosilanes and p-bromobiphenyl with sodium in ether. Melting and boiling points and solubility data for these compounds and for tetraphenylsilane are tabulated and discussed. Infrared absorption spectra are presented ...