The crystal and molecular structures of two bulky phosphines containing the 2,4,6-(t-Bu)3C6H2 group are reported. Compound 1, [2,4,6-(t-Bu)3C6H2P(SiMe3)2], crystallizes in the monoclinic space group P21/c; a = 9.450(8), b = 17.154(6), c = 17.790(5) Å, β = 101.19...