Journal of Coordination Chemistry p. 2726 - 2735 (2013)
Update date:2022-08-24
Topics:
Xu, Wei-Xiu
Yuan, Yong-Mei
Li, Wen-Hui
Polymeric dioxomolybdenum(VI) complexes, [MoO2L]n(L= L1= N'-(2-hydroxybenzylidene) nicotinohydrazide for 1, L=L 2= N'-(2-hydroxy-5-methoxybenzylidene)isonicotinohydrazide for 2), were prepared and characterized by physico-chemical, spectroscopic methods, and single-crystal X-ray determination. Complex 1 crystallizes in the orthorhombic space group P212121with a=7.6568(4), b =11.6315(7), c = 15.2211(9)A, V= 1355.59(13) A3, Z = 4, R1= 0.0181, wR2= 0.0464, and S = 1.097. Complex 2 crystallizes in the monoclinic space group P21/n with a=11.2516(6), b=11.8134(7), c= 12.4371(6) A, β = 116.2210(10)°, V=1483.02(14) A3, Z= 4, R1= 0.0399, wR2= 0.0874, and S=1.096. X-ray analysis indicates that Mo in each complex is octahedral with two oxo groups and N2O2donor set of the nicotinohydrazone or isonicotinohydrazone. The complexes are efficient catalysts for oxidation of olefins.
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