Abstract
Two new dioxomolybdenum(VI) complexes, [MoO2L1(MeOH)] (I) and [MoO2L2] (II), where L1 and L2 are the anionic forms of N'-(2-hydroxy-3,5-di-tert-butylbenzylidene)-4-methoxybenzohydrazide and 2-amino-N'-(2-hydroxy-3,5-di-tert-butylbenzylidene)benzohydrazide, respectively, have been synthesized and characterized by elemental analysis, FT-IR spectra, and single crystal X-ray determination (CF files CCDC nos. 1448089 (I), 1487063 (II)). The crystal of I is monoclinic: space group P21/n, a = 7.353(1), b = 24.758(3), c = 13.891(2) Å, β = 101.013(2)°, V = 2482.3(6) Å3, Z = 4, R 1 = 0.0848, wR 2 = 0.2050. The crystal of II is monoclinic: space group P21/c, a = 6.752(1), b = 16.947(1), c = 19.510(1) Å, β = 96.891(2)°, V = 2216.5(4) Å3, Z = 4, R 1 = 0.0670, wR 2 = 0.1638. The Mo atom in complex I is in octahedral coordination, with three donor atoms of the hydrazone ligand, two oxo groups, and one methanol O atom. The Mo atom in complex II is in square pyramidal coordination, with three donor atoms of the hydrazone ligand, and two oxo groups. The complexes have interesting catalytic properties for sulfoxidation reactions.
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Wang, L., Han, Y.J., Li, Q.B. et al. Synthesis, crystal structures, and catalytic property of dioxomolybdenum(VI) complexes with hydrazone ligands derived from 3,5-Di-tert-butylsalicylaldehyde. Russ J Coord Chem 43, 389–395 (2017). https://doi.org/10.1134/S1070328417060094
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DOI: https://doi.org/10.1134/S1070328417060094