Two acid hydrazones, furan-2-carbaldehyde nicotinic hydrazone (L1) and furan-2-carbaldehyde benzhydrazone (L2) have been synthesized and they are characterized by elemental analysis, IR, NMR and UV spectral analysis. Oxovanadium(IV) complexes of these two hydrazones were synthesized and characterized by elemental analysis, IR, UV, EPR, molar conductivity and magnetic susceptibility measurements. Conductivity measurements reveal that the complexes are non-electrolytes. Spectral data indicates the square pyramidal geometry for the monomeric five coordinated oxovanadium(IV) complexes with the general formula [VO(L)(OCH3)]. The complex was studied for its catalytic activity and was found to be a good catalyst in quinoxaline synthesis.
合成了两种酸
肼缩合物:
呋喃-2-甲醛
尼古丁肼(L1)和
呋喃-2-甲醛苯
肼(
L2),并通过元素分析、红外光谱、核磁共振和紫外光谱分析对其进行了表征。这两种
肼缩合物的氧
钒(IV)配合物也进行了合成,并通过元素分析、红外光谱、紫外光谱、电子顺磁共振、摩尔电导率和磁化率测量进行了表征。电导率测量表明这些配合物为非电解质。光谱数据表明这些单体五配位氧
钒(IV)配合物具有方锥形几何构型,通式为[VO(L)(OCH3)]。该配合物的催化活性研究表明其在喹噁啉合成中表现出良好的催化性能。