配合物的生成热和配体的质子化热之间的直线焓关系——Ⅶ.Ni(Ⅱ)-2,2′-联吡啶-N-(间位取代苯基)氨基乙酸三元体系 |
LINEAR ENTHALPY RELATIONSHIPS BETWEEN THE HEAT OF FORMATION OF COORDINA-TION COMPOUNDS AND THE HEAT OF PROTONATION OF LIGANDS——Ⅶ. NICKEL (Ⅱ)-2,2'-BIPYRIDYL-N-(META-SUBSTITUTED PHENYL)-GLYCINES TERNARY SYSTEM |
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摘要: 有关Ni(Ⅱ)-N-(间位取代苯基)氨基乙酸二元体系的直线焓和直线熵关系,前文已有报道,本文报告Ni(Ⅱ)-2,2′-联吡啶-N-(间位取代苯基)氨基乙酸(Ni(Ⅱ)-biPy-m-RPhG:R=CH3,H,CH3O,Cl)三元体系的生成热研究,发现在此三元体系中亦存在良好的直线焓和直线熵关系。 |
关键词: 直线焓关系 直线熵关系 N-(间位取代苯基)氨基乙酸 镍 2,2'-联吡啶 |
基金项目: |
Abstract: The heats of formation of the ternary coordination compounds Ni (Ⅱ)-bipy-mRPhG (mRPhG = m-RC6H4NHCH2COOH, R = CH3,H, CH3O, Cl) and the heats of protonation of the second ligand, mRPhG, have been determined by calorimetric method at 25℃ in 30%(V/V) ethanol solution in the presence of 0.10M NaClO4 . Both linear enthalpy and entropy relationships have been found to exist in these ternary systems as expressed by the following correlation equations ΔHM= -28.9-0.455 ΔHL1 ΔSM=32.2-0.787 ΔSL1 where ΔHM is the heat of formation of the ternary coordination compounds (kJ·mol-1),ΔSM is the corresponding entropy term (J·K-1·mol-1) ; ΔHL1 is the heat of protonation of the second ligand (kJ·mol-1) and ΔSL1is the corresponding entropy term. The significance of these relationships has been discussed in terms of bonding characteristics and the configuration of the coordination compounds. |
Keywords: linear enthalpy relationship linear entropy relation-ship N-(meta-substituted phenyl)glycine nickel 2,2'-bipyridyl |
投稿时间:1987-03-04 |
摘要点击次数: 1635 |
全文下载次数: 1758 |
陈荣悌,林华宽,古宗信.配合物的生成热和配体的质子化热之间的直线焓关系——Ⅶ.Ni(Ⅱ)-2,2′-联吡啶-N-(间位取代苯基)氨基乙酸三元体系[J].无机化学学报,1988,4(2):106-109. |
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