若干锰(Ⅲ)希夫碱配合物的合成和表征 |
SYNTHESIS AND CHARACTERIZATION OF SOME MANGANESE(Ⅲ) SCHIFF BASE COMPLEXES |
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摘要: 合成了六种锰(Ⅲ)希夫碱配合物:Mn(bzacem)X(X-=Cl-,Br-,I-,NCS-,NO2-)和Mn(bzacen)ClO4·2H2O,其中bzacen2-为N,N′-二(苯甲酰丙酮缩)-乙二胺阴离子.用NMR法测定配合物在DMSO溶液中的有效磁矩值为4.46—4.63,表明为高自旋配合物,将电子光谱中的吸收带分别按配位场带、荷移带和配体带进行了归属,在配合物的红外光谱中,原配体H2bzacen中的νN-H带消失,νC-O带移向低频,并对Mn-O、Mn-N和Mn-X的伸缩带进行了归属。 |
关键词: 锰(Ⅲ) 希夫碱配合物 |
基金项目: 中科院科学基金项目 |
Abstract: Six new complexes of Mn(bzaccn)X(X-,Cl-,Br-,I-,NO2-,NCS-) and Mn(bzaccn)ClO4·2H2O, where bzaccn2- is the di-anion of bisfbcnzoylacctone)ethylcncdⅡminc, have been synthesized. The magnetic susceptibility of the complexes have been determined by the NMR method in the DM SO solution. The effective magnetic momcnts(4.46-4.63) of the complexes indicate that the complexes arc in high spin state. The hands in the electronic spectra have been tentatively assigned to the ligand field, charge-transfer and ligand transitions. The disappearance of vN-H and the shift of 10 lower frequency indicate that bzaccn2-has been coordinated to the Mn(Ⅲ) via nitrogen and oxygen. The detailed tentative assignments, including the asymmetric and symmetric vibrations of Mn-O and Mn-N and those of Mn-X(X = CI,Br,I), have been suggested |
Keywords: manganese(Ⅲ) Schiff base complex |
投稿时间:1988-04-01 |
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陈克,陈邦林.若干锰(Ⅲ)希夫碱配合物的合成和表征[J].无机化学学报,1990,6(4):397-401. |
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