Yang Qiwen, Wang Pu, Lei Yan
Acta Chim Slov. 2020 Sep;67(3):927-933.
A pair of structurally similar oxidovanadium(V) complexes with the general formula [VOLL'], with the hydrazone compounds N'-(4-oxopentan-2-ylidene)nicotinohydrazide (H2L1) and 4-bromo-N'-(4-oxopentan-2-ylidene)benzohydrazide (H2L2), and the acetohydroxamic acid (HL') as ligands, have been synthesized and structurally characterized by physico-chemical methods and single crystal X-ray determination. Single crystal X-ray analysis indicates that the V atoms in the complexes are in octahedral coordination, with the ONO donor atoms of the hydrazone ligands, and the OO donor atoms of the acetohydroxamate ligands, as well as an oxido O atom. The complexes showed good property for the catalytic epoxidation of styrene.
合成了一对结构相似的通式为[VOLL']的氧化钒（V）配合物，其中腙化合物N'-(4-氧代戊-2-亚基)烟酰肼（H2L1）和4-溴-N'-(4-氧代戊-2-亚基)苯甲酰肼（H2L2）以及乙酰氧肟酸（HL'）作为配体，并通过物理化学方法和单晶X射线测定对其进行了结构表征。单晶X射线分析表明，配合物中的V原子呈八面体配位，配位原子包括腙配体的ONO原子、乙酰氧肟酸配体的OO原子以及一个氧化态的O原子。这些配合物对苯乙烯的催化环氧化表现出良好的性能。
