Synthesis and coordination properties of (sulfinylmethyl)phosphonates and (sulfonylmethyl)phosphonates. Crystal and molecular structure determinations for UO2(NO3)2[(i-C3H7O)]2P(I)CH2S(O)2C6H112 and Gd(NO3)3[(i-C3H7O)2P(O)CH2S(O)(p-CH3C6H4)]·H2O

The bifunctional (sulfonylmethyl)phosphonates (i-C3H7O)2P(O)CH2S(I)2C6H11, (i-C3H7O)2P(O)CH2S(O)2(p-CH3C6H4), and (C6H5)2P(O)CH2S(O)2N(CH3)2 and (sulfinylmethyl)phosphonate (i-C3H7O)2P(O)CH2S(O)(p-CH3C6H4) have been synthesized. The ligands have been characterized by spectroscopic methods, and selected coordination chemistry with UO2(NO3)2, La(NO3)3, and Gd(NO3)3 has been evaluated. The structures of two complexes, UO2(NO3)2[(i-C3H7O)2P(O)CH2S(O)2C6H11]2 (2) and Gd(NO3)3[(i-C3H7O)2P(O)CH2S(O)(p-CH3C6H4)]·H2O (8), have been determined by single-crystal x-ray diffraction techniques at 23 degree C, and the crystal parameters are reported. The molecular structures of the two complexes are also reported. 25 refs., 2 figs., 4 tabs