Synthesis and Characterization of Transitional Metal Complexes of Pyromellitic Acid

Journal of Liaoning Petrochemical University ›› 2007, Vol. 27 ›› Issue (4): 24-26.

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Synthesis and Characterization of Transitional Metal Complexes of Pyromellitic Acid

School of Petrochemical Engineering , Liaoning Univ ersity of Petroleum & Chemical Technology ,
Fushun Liaoning 113001, P .R .China

Received:2007-06-28 Published:2007-12-20 Online:2017-07-05

均苯四甲酸过渡金属配合物的合成及表征

王　锐

辽宁石油化工大学石油化工学院, 辽宁抚顺113001

作者简介:王锐(1980 -), 女(满族), 辽宁沈阳市, 讲师, 硕士

Abstract

Abstract:

Transitional metal complexes of pyromellitic acid were synthesized by homogeneous precipitation method , and characterized by TG, element analysis and FTIR.The results of TG and element analysis show their general formula .TG and DTG curves show that the the rmalstability of four anhydrous transitional metal complexes decrease in the order :Zn₂(C₁₀H ₂O₈)>Cd₂ (C₁₀ H₂O₈)>Mn₂(C₁₀H ₂O₈)>Cu₂ (C₁₀H ₂O₈).The IR spectrum of prepared complexes suggests that carboxylate groups in the complexes of M(Ⅱ)acted as bidentate chelating with the exception o f the complex of Zn(Ⅱ) as bidentate bridging .

Key words: Pyromellitic acid, , Transitional metal complex, , Thermal gravimetric analysis, , IR spectra

摘要： 　用均匀沉淀法合成了均苯四甲酸过渡金属配合物。利用热重、元素分析和红外光谱仪对所制得的4种配合物进行了表征。通过热重和元素分析得到了其配合物的通式。由热重-微商曲线得到, 4 种无水配合物的热稳定性次序为Zn₂(C₁₀H ₂O₈)>Cd₂ (C₁₀ H₂O₈)>Mn₂(C₁₀H ₂O₈)>Cu₂ (C₁₀H ₂O₈)。红外光谱分析表明, M₂(C₁₀H ₂O₈)· nH₂O 中羧酸盐基团除锌盐的配位键可能为桥式配位外, 其余均为双齿配位。

关键词: 均苯四甲酸二酐, 　过渡金属配合物, 　热重分析, 　红外光谱

WANG Rui. Synthesis and Characterization of Transitional Metal Complexes of Pyromellitic Acid[J]. Journal of Liaoning Petrochemical University, 2007, 27(4): 24-26.

王　锐. 均苯四甲酸过渡金属配合物的合成及表征[J]. 辽宁石油化工大学学报, 2007, 27(4): 24-26.

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Synthesis and Characterization of Transitional Metal Complexes of Pyromellitic Acid

均苯四甲酸过渡金属配合物的合成及表征

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