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Synthesis and coordination chemistry of (carbamoylmethyl)thiophosphonates. Crystal and molecular structure of cis-dioxodichlorobis(diethyl((diethylcarbamoyl)methyl)thiophosphonate)molybdenum(VI)

Journal Article · · Inorg. Chem.; (United States)
DOI:https://doi.org/10.1021/ic00261a026· OSTI ID:5521894
Bifunctional (carbamoylmethyl)thiophosphonates, (RO)/sub 2/P(S)CH/sub 2/C(O)NEt/sub 2/ (R = Et, Bu), have been prepared and characterized by elemental analysis and mass, infrared, and NMR spectroscopy. The coordination chemistry of one ligand (R = Et) with molybdenyl, lanthanide, and uranyl ions has been surveyed. cis-Dioxodichlorobis(diethyl((diethylcarbamoyl)methyl)thiophosphonated)molybdenum(VI), MoO/sub 2/Cl/sub 2/((C/sub 7/H/sub 5/O)/sub 2/P(S)CH/sub 2/C(O)N(C/sub 2/H/sub 5/)/sub 2/)/sub 2/ has been isolated from the combination of MoO/sub 2/Cl/sub 2/ and the thiophosphonate ligand in ethanol/ether mixtures. The resulting complex has been characterized by elemental analyses, infrared and /sup 31/P and /sup 13/C NMR spectroscopy, and single-crystal X-ray diffraction analysis. The crystal parameters are reported. The structure was solved by heavy-atom methods, and blocked least-squares refinements converged at R/sub F/ = 5.6% and R/sub wF/ = 5.9% on 2670 unique reflections with F greater than or equal to 5sigma(F). The structure contains monomeric units of the complex with the six-coordinate Mo atom having a pseudooctohedral coordination geometry. The two (carbamoylmethyl)thiophosphonate ligands are bonded to the Mo atom in a monodentate mode through the carbonyl oxygen atoms. The important bond distances were measured and are reported. 29 references, 1 figure, 3 tables.
Research Organization:
Univ. of New Mexico, Albuquerque
OSTI ID:
5521894
Journal Information:
Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 26:14; ISSN INOCA
Country of Publication:
United States
Language:
English