Síntesis e investigación de hexamolibdocromato(III) y hexamolibdocobaltato(III) de niacina (C₆H₂NO₂)₂·(H₃O)₃ [Cr(Co)Mo₆(OH)₆O₁₈]·5H₂O

Abstract

Se reporta la síntesis y estudio de los compuestos órgano-inorgánicos de hexamolibdocromato(III) y hexamolibdocobaltato(III) de niacina: (C₆H₅ NO₂)₂(H₃O)₃ [Cr(Co)Mo₆(OH)₆O₁₈]·5H₂O (1) y (C₆H₅ NO₂)₂(H₃O)₃ [Co)Mo₆(OH)₆O₁₈]·5H₂O (2) de niacina, estudiados por difracción de rayos X, TGA, IR y RMN. Los complejos cristalizan en la estructura triclínica, grupo espacial P-1; los parámetros de las celdas unitarias del compuesto 1: a = 9.1640 ( 8), b = 10.6441 (11), c = 10.8241 (12) Å, α = 9 5.968 (10), β = 109.864 (12), γ = 1 05.059 (11 )°, V = 937.2 (2) Åᶾ, ρcalc = 2.500 g / cmᶾ, Z = 1; para el compuesto 2: a = 9.2303 (19) , b = 10.700 (2) , c = 10.850 (2) Å, α = 95.95 (3), β = 110.01 (3) , γ = 105.11 (3)° , V = 949.9 (4) Åᶾ, ρcalc = 2.479 g / cm3, Z = 1.The synthesis of the organo-inorganic compounds of niacine hexamolibdocromate(III) (C₆H₅ NO₂)₂(H₃O)₃ [Cr(Co)Mo₆(OH)₆O₁₈]·5H₂O (1) and niacine hexamolibdocobaltate(III) (C₆H₅ NO₂)₂(H₃O)₃ [Co)Mo₆(OH)₆O₁₈]·5H₂O (2) were studied by X-ray diffraction, TGA, IR and NMR are reported. The complexes crystallize in the triclinic structure, space group P-1; The unit cell parameters of compound 1: a = 9.1640 (8), b = 10.6441 (11), c = 10.8241 (12) Å, α = 95.968 (10), β = 109.864 (12), γ = 105.059 ( 11)°, V = 937.2 (2) Åᶾ, ρcalc = 2,500 g / cmᶾ, Z = 1; for compound 2: a = 9.2303 (19), b = 10.700 (2), c = 10.850 (2) Å, α=95.95(3), β=110.01(3), γ=105.11(3), V=949.9(4) Åᶾ, ρcalc = 2.479 g/cmᶾ, Z = 1