铬(Ⅲ)含β-二酮混合配体配合物的合成和表征(Ⅱ) |
SYNTHESIS AND CHARACTERIZATION OF CHROMIUM(Ⅲ)MIXED LIGAND COMPLEXES CONTAINING β-DIKETONE(Ⅱ) |
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摘要: 首次合成了九种[Cr(β-dik)Cl2L2]型混合配体配合物.其中五种是:L为γ-甲基吡啶,β-dik分别为乙酰丙酮、苯甲酰丙酮、三氟乙酰丙酮、2-噻吩甲酰三氟丙酮、1,1,1,2,2,3,3-七氟-7,7-二甲基-4,6-辛二酮;四种是:L分别为N,N-二甲基甲酰胺,N,N-二甲基乙酰胺,β-dik分别为苯甲酰丙酮和2-噻吩甲酰三氟丙酮.并对上述配合物进行了电子光谱、红外光谱的表征工作. |
关键词: 铬(Ⅲ) 混合配体配合物 β-二酮 |
基金项目: |
Abstract: Nine new mixed ligand complexes of the type Cr(β-dik)Cl2L2, where L=γ-picoline, β-dik=acetylacetone(acac), benzoylacetone(bzac), trifluoroacetylacetone(tfac), thenoyltrifluroacetone(tta), 1, 1, 1, 2. 2, 3,3-heptafluoro-7, 7-dimethyl-4, 6-octanedione(fod); L=N, N-dimethyl-formamide and N, N-dimethylacetamide, β-dik=bzac, tta, have been prepared. The electronic spectra from 300nm to 900nm were recorded andassignments of ν1(4A2g→4T2g)and ν2(4A2g→4T1g)bands were made.The ligand field parameter Dq values were calculated from the v1 band and compared with the values obtained by average environment rule. The Racah parameters B calculated from the ν1 and ν2 bands were used to studying the nephelauxetic effect of these mixed ligand complexes. Their IR spectra were measured from 2000cm-1 to 400cm-1. The assignments ofstretching freguencies of C-0, C.-C, Cr(Ⅲ)-O and y-picoliue ringvibration in these mixed ligand complexes were made. |
Keywords: chromium(Ⅲ) mixed ligand complex β-diketone |
投稿时间:1986-01-08 |
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陈克,罗慧敏.铬(Ⅲ)含β-二酮混合配体配合物的合成和表征(Ⅱ)[J].无机化学学报,1987,3(1):43-50. |
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