Thermodynamic Studies on the N-Acetic Acid Substituted Tetraazamacrocycle and Its Lanthanide Complexes

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (5): 674.

• Articles • Previous Articles Next Articles

Thermodynamic Studies on the N-Acetic Acid Substituted Tetraazamacrocycle and Its Lanthanide Complexes

BI Jian-Hong¹, HU De-Yin², NI Shi-Sheng², XU Ji-De²

1. Department of Chemistry, Anhui Institure of Education, Hefei, 230061;
2. Department of Chemistry, Anhui University

Received:1994-05-31 Revised:1994-10-26 Online:1995-05-24 Published:1995-05-24

Abstract

Abstract: The protonation constants of the macrocycle H₄L (5, 7,12,14-tetramethyl-1,4,8,11-tetraazamacrocyclotetradeca-N',N", N"' N""-tetraacetic acid )were determined by poten tiometric titrations in 0.5 mol/L KNO₃solution at 25+0.1℃,40+0.1℃ and 80±0. 1 ℃.The stability constants of the complexes of H₄L with La³⁺,Nd³⁺, Pr³⁺,Sm³⁺,Eu³⁺,Gd³⁺,Dy³⁺,Yb³⁺were determined by the same method at 40+0. 1℃ and 80±0.1℃.The en thalpies of coordination reaction of H₄L with H⁺in the solution were given.Experimental re sults show that the complexes have high stability.

Key words: Tetraazamacrocyle, Lanthanide complexes, Stability constant, Enthalpy

CLC Number:

O626.5

TrendMD:

BI Jian-Hong, HU De-Yin, NI Shi-Sheng, XU Ji-De. Thermodynamic Studies on the N-Acetic Acid Substituted Tetraazamacrocycle and Its Lanthanide Complexes[J]. Chem. J. Chinese Universities, 1995, 16(5): 674.

[1]	HUANG Yandong, WU Ruofei, CHU Yanqiu, DING Chuanfan. Effect of Side Chain of α-Amino Acids and Esters on the Stability Constants for β-Cyclodextrin Complexes^† [J]. Chem. J. Chinese Universities, 2017, 38(5): 743.
[2]	LI Lei,HUANG Cuiying,JIANG Xiaonan,GAO Xichan,WANG Changsheng. Ionic Hydrogen Bonding Between Arginine Side Chain and Nucleic Acid Bases^† [J]. Chem. J. Chinese Universities, 2016, 37(8): 1460.
[3]	LI Zhaowan, QIAO Zhanping, CHEN Xin, DANG Yuanlin, YANG Qichao. Equilibria for the CsBr-TmBr₃-H₂O and CsBr-TmBr₃-HBr(~13%)-H₂O Systems at 298.15 K and Thermodynamic and Fluorescent Properties of New Solid-phase Compound [J]. Chem. J. Chinese Universities, 2015, 36(9): 1759.
[4]	JIA Zhaopeng, HU Xingen, FANG Guoyong. Enthaplic Pairwise Self-associations of Nicotinamide and Isonicotinamide in Aqueous KCl Solutions by Microcalorimetry^† [J]. Chem. J. Chinese Universities, 2014, 35(2): 384.
[5]	FAN Wen-Hai, ZHANG Li-Hong, ZHANG Zi-Long, GUO Jing-Fu, REN Ai-Min, GE Peng-Fei. Theoretical Study on Antitumor Activities of Naphthoquinone Derivatives [J]. Chem. J. Chinese Universities, 2013, 34(7): 1731.
[6]	GAO Zhen-Fei, DI Ming-Zhe, DI You-Ying. Synthesis, Structure and Thermochemistry of Pyridine-2,6-dicarboxylic Acid Lithium Hydrogen [J]. Chem. J. Chinese Universities, 2013, 34(5): 1208.
[7]	HUANG Jia-Hua, GONG Zhen-Bin, LIN Ji-Jun, DUAN Hua-Ling. Measurement of Complexation Stability Constant and Coordinating Number of Poly(ethylenimine) with Metals [J]. Chem. J. Chinese Universities, 2012, 33(12): 2633.
[8]	ZHONG Wen-Wen, DI Ming-Zhe, DI You-Ying. Synthesis, Structure Characterization and Thermochemistry of Pyridine-2,6-dicarboxylic Acid Potassium Hydrogen [J]. Chem. J. Chinese Universities, 2012, 33(09): 2074.
[9]	FAN Gao-Chao, HUANG Zai-Yin*, JIANG Jun-Ying, LI Yan-Fen, SUN Li. Preparation and Standard Molar Formation Enthalpy of Weed-like ZnO Nanostructures [J]. Chem. J. Chinese Universities, 2011, 32(5): 1016.
[10]	LIU Yu-Pu, DI You-Ying*, HE Dong-Hua, KONG Yu-Xia, YANG Wei-Wei, DAN Wen-Yan. Low-temperature Heat Capacities and Thermochemistry Properties of Ethylene Diamine Dihydrochloride [J]. Chem. J. Chinese Universities, 2010, 31(6): 1227.
[11]	TONG Jing, SUN Ying-Chun, FANG Da-Wei, YANG Jia-Zhen*. Studies on the Thermo-Chemical Properties of Ionic Liquid Based on Alanine[C₄mim][Ala] [J]. Chem. J. Chinese Universities, 2009, 30(6): 1210.
[12]	HE Dong-Hua, DI You-Ying*, YANG Wei-Wei, KONG Yu-Xia, DAN Wen-Yan, TAN Zhi-Cheng. Synthesis, Structure Characterization and Thermochemistry of Anhydrous Lithium Benzoinate [J]. Chem. J. Chinese Universities, 2009, 30(11): 2258.
[13]	YANG Wei-Wei¹, KONG Yu-Xia¹, DI You-Ying¹*, SHI Quan², TAN Zhi-Cheng². Low-temperature Heat Capacities and Thermochemistry of Sodium Nicotinate Na(C₆H₄NO₂)(s) [J]. Chem. J. Chinese Universities, 2008, 29(4): 799.
[14]	ZHANG Zi-Fu1, WANG Heng1, FANG Da-Wei1,2, YANG Jia-Zhen1*. Studies on the Enthalpy of Solution of Ionic Liquid [C2mim][FeCl4] Based on Transition Metal [J]. Chem. J. Chinese Universities, 2008, 29(3): 569.
[15]	YANG Jia-Zhen¹, LI Ji-Guang¹, FANG Da-Wei^2,3, ZHANG Qing-Guo^2,3, FENG Rong-Kai¹, TAO Chuang¹. Studies on Thermochemical Properties of Ionic Liquid Based on Transition Metal Ions System BMIC/ZnCl₂ [J]. Chem. J. Chinese Universities, 2007, 28(3): 492.

Thermodynamic Studies on the N-Acetic Acid Substituted Tetraazamacrocycle and Its Lanthanide Complexes

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments