配合物穩(wěn)定常數(shù)

配合物穩(wěn)定常數(shù)StabilityConstantsofCoordinationCompounds絡(luò)合反應(yīng)的平衡常數(shù)用配合物穩(wěn)定常數(shù)表示，又稱配合物形成常數(shù)。此常數(shù)值越大，說明形成的配合物越穩(wěn)定。其倒數(shù)用來表示配合物的解離程度，稱為配合物的不穩(wěn)定常數(shù)。以下表格中，表（1）中除特別說明外是在25C下，離子強度I=0;表（2）中離子強度都是在有限的范圍內(nèi)，I-0。表中3n表示累積穩(wěn)定常數(shù)。金屬-無機配位體配合物的穩(wěn)定常數(shù)StabilityConstantsofMetalIon-InorganicCoordinationCompounds序號(No.)配位體(Ligand)金屬離子(Metalion)配位體數(shù)目n(Numberofligand)lg31N%Ag+1,23.24,7.05Au3+410.3Cd2+123,4,5,62.65,4.75,6.19,7.12,6.80,5.14Co2+123,4,5,62.11,3.74,4.79,5.55,5.73,5.11Co3+123,4,5,66.7,14.0,20.1,25.7,30.8,35.2Cu+1,25.93,10.86Cu2+1,2,3,4,54.31,7.98,11.02,13.32,12.86Fe2+1,21.4,2.2Hg2+1,2,3,48.8,17.5,18.5,19.28Mn2+1,20.8,1.3Ni2+1,2,3,4,5,62.80,5.04,6.77,7.96,8.71,8.74Pd2+1,2,3,49.6,18.5,26.0,32.8Pt2+635.3Zn2+1,2,3,42.37,4.81,7.31,9.462Br-Ag+1,2,3,44.38,7.33,8.00,8.73Bi3+1,2,3,4,5,62.37,4.20,5.90,7.30,8.20,8.30Cd2+1,2,3,41.75,2.34,3.32,3.70,Ce3+10.42Cu+25.89CU2+10.30Hg2+1,2,3,49.05,17.32,19.74,21.00

In3+1,21.30,1.88Pb2+1,2,3,41.77,2.60,3.00,2.30Pd2+1,2,3,45.17,9.42,12.70,14.90Rh3+2,3,4,5,614.3,16.3,17.6,18.4,17.2SC3+1,22.08,3.08Sn2+1,2,31.11,1.81,1.46Tl3+123,4,5,69.7,16.6,21.2,23.9,29.2,31.6U4+10.18Y3+11.323Cl-Ag+1,2,43.04,5.04,5.30Bi3+1,2,3,42.44,4.7,5.0,5.6Cd2+1,2,3,41.95,2.50,2.60,2.80C03+11.42Cu+2,35.5,5.7CU2+1,20.1,-0.6Fe2+11.17Fe3+29.8Hg2+1,2,3,46.74,13.22,14.07,15.07In3+1,2,3,41.62,2.44,1.70,1.60Pb2+1,2,31.42,2.23,3.23Pd2+1,2,3,46.1,10.7,13.1,15.7Pt2+2,3,411.5,14.5,16.0Sb3+1,2,3,42.26,3.49,4.18,4.72Sn2+1,2,3,41.51,2.24,2.03,1.48Tl3+1,2,3,48.14,13.60,15.78,18.00Th4+1,21.38,0.38Zn2+1,2,3,40.43,0.61,0.53,0.20Zr4+1,2,3,40.9,131.5,1.24CN-Ag+2,3,421.1,21.7,20.6Au+238.3Cd2+1,2,3,45.48,10.60,15.23,18.78Cu+2,3,424.0,28.59,30.30Fe2+635.0

Fe3+642.0Hg2+441.4Ni2+431.3Zn2+1,2,3,45.3,11.70,16.70,21.605F-Al3+123,4,5,66.11,11.12,15.00,18.00,19.40,19.80Be2+1,2,3,44.99,8.80,11.60,13.10Bi3+11.42C02+10.4Cr3+1,2,34.36,8.70,11.20Cu2+10.9Fe2+10.8Fe3+1,2,3,55.28,9.30,12.06,15.77Ga3+1,2,34.49,8.00,10.50Hf4+123,4,5,69.0,16.5,23.1,28.8,34.0,38.0Hg2+11.03In3+1,2,3,43.70,6.40,8.60,9.80Mg2+11.30Mn2+15.48Ni2+10.50Pb2+1,21.44,2.54Sb3+1,2,3,43.0,5.7,8.3,10.9Sn2+1,2,34.08,6.68,9.50Th4+1,2,3,48.44,15.08,19.80,23.20TiO2+1,2,3,45.4,9.8,13.7,18.0Zn2+10.78Zr4+123,4,5,69.4,17.2,23.7,29.5,33.5,38.36I-Ag+1,2,36.58,11.74,13.68Bi3+1,4,5,63.63,14.95,16.80,18.80Cd2+1,2,3,42.10,3.43,4.49,5.41Cu+28.85Fe3+11.88Hg2+1,2,3,412.87,23.82,27.60,29.83Pb2+1,2,3,42.00,3.15,3.92,4.47

Pd2+424.5Tl+1,2,30.72,0.90,1.08Tl3+1,2,3,411.41,20.88,27.60,31.827OH-Ag+1,22.0,3.99Al3+1,49.27,33.03AS3+1,2,3,414.33,18.73,20.60,21.20Be2+1,2,39.7,14.0,15.2Bi3+1,2,412.7,15.8,35.2Ca2+11.3Cd2+1,2,3,44.17,8.33,9.02,8.62Ce3+14.6Ce4+1,213.28,26.46C02+1,2,3,44.3,8.4,9.7,10.2Cr3+1,2,410.1,17.8,29.9Cu2+1,2,3,47.0,13.68,17.00,18.5Fe2+1,2,3,45.56,9.77,9.67,8.58Fe3+1,2,311.87,21.17,29.67Hg2+1,2,310.6,21.8,20.9In3+1,2,3,410.0,20.2,29.6,38.9Mg2+12.58Mn2+1,33.9,8.3Ni2+1,2,34.97,8.55,11.33Pa4+1,2,3,414.04,27.84,40.7,51.4Pb2+1,2,37.82,10.85,14.58Pd2+1,213.0,25.8Sb3+2,3,424.3,36.7,38.3SC3+18.9Sn2+110.4Th3+1,212.86,25.37Ti3+112.71Zn2+1,2,3,44.40,11.30,14.14,17.66Zr4+1,2,3,414.3,28.3,41.9,55.38NO3.Ba2+10.92

Bi3+11.26Ca2+10.28Cd2+10.40Fe3+11.0Hg2+10.35Pb2+11.18Tl+10.33Tl3+10.929P2°74-Ba2+14.6Ca2+14.6Cd3+15.6C02+16.1CU2+1,26.7,9.0Hg2+212.38Mg2+15.7Ni2+1,25.8,7.4Pb2+1,27.3,10.15Zn2+1,28.7,11.010SCN-Ag+1,2,3,44.6,7.57,9.08,10.08Bi3+123,4,5,61.67,3.00,4.00,4.80,5.50,6.10Cd2+1,2,3,41.39,1.98,2.58,3.6Cr3+1,21.87,2.98Cu+1,212.11,5.18Cu2+1,21.90,3.00Fe3+123,4,5,62.21,3.64,5.00,6.30,6.20,6.10Hg2+1,2,3,49.08,16.86,19.70,21.70Ni2+1,2,31.18,1.64,1.81Pb2+1,2,30.78,0.99,1.00Sn2+1,2,31.17,1.77,1.74Th4+1,21.08,1.78Zn2+1,2,3,41.33,1.91,2.00,1.6011S2O32-Ag+1,28.82,13.46Cd2+1,23.92,6.44

Cu+1,2,310.27,12.22,13.84Fe3+12.10Hg2+2,3,429.44,31.90,33.24Pb2+2,35.13,6.3512SO42-Ag+11.3Ba2+12.7Bi3+1,2,3,4,51.98,3.41,4.08,4.34,4.60Fe3+1,24.04,5.38Hg2+1,21.34,2.40ln3+1,2,31.78,1.88,2.36Ni2+12.4Pb2+12.75Pr3+1,23.62,4.92Th4+1,23.32,5.50Zr4+1,2,33.79,6.64,7.77金屬-有機配位體配合物的穩(wěn)定常數(shù)(表中離子強度都是在有限的范圍內(nèi)， I心0。StabilityConstantsofMetalIon-OrganicCoordinationCompounds序號(No.)配位體(Ligand)金屬離子(Metalion)配位體數(shù)目n(Numberofligand)lg向1乙二胺四乙酸(EDTA)[(HOOCCH2)2NCH2]2Ag+17.32Al3+116.11Ba2+17.78Be2+19.3Bi3+122.8Ca2+111.0Cd2+116.4CO2+116.31CO3+136.0Cr3+123.0CU2+118.7Fe2+114.83Fe3+124.23Ga3+120.25..2+Hg121.80In3+124.95Li+12.79Mg2+18.64Mn2+113.8Mo(V)16.36Na+11.66Ni2+118.56Pb2+118.3Pd2+118.5SC2+123.1Sn2+122.1Sr2+18.80

Th4+123.2TiO2+117.3TI3+122.5U4+117.50VO2+118.0丫3+118.32Zn2+116.4Zr4+119.42乙酸(Aceticacid)CH3C00HAg+1,20.73,0.64Ba2+10.41Ca2+10.6Cd2+1,2,31.5,232.4Ce3+1,2341.68,2.69,3.13,3.18CO2+1,21.5,1.9Cr3+1,2,34.63,7.08,9.60Cu2+(20°C)1,22.16,3.20ln3+1,2343.50,5.95,7.90,9.08Mn2+1,29.84,2.06Ni2+1,21.12,1.81Pb2+1,2,3,42.52,4.0,6.4,8.5Sn2+1,2,33.3,6.0,7.3Tl3+1,2,3,46.17,11.28,15.10,18.3Zn2+11.53乙酰丙酮Al3+(30C)1,28.6,15.5

(Acetylacetone)CH3COCH2CH3Cd2+1,23.84,6.66CO2+1,25.40,9.54Cr2+1,25.96,11.7CU2+1,28.27,16.34Fe2+1,25.07,8.67Fe3+1,2,311.4,22.1,26.7Hg2+221.5Mg2+1,23.65,6.27Mn2+1,24.24,7.35Mn3+33.86Ni2+(20°C)1,2,36.06,10.77,13.09Pb2+26.32Pd2+(30C)1,216.2,27.1Th4+1,2,3,48.8,16.2,22.5,26.7Ti3+1,2,310.43,18.82,24.90V2+1,2,35.4,10.2,14.7Zn2+(30C)1,24.98,8.81Zr4+1,2,3,48.4,16.0,23.2,30.14草酸(Oxalicacid)HOOCCOOHAg+12.41Al3+1,2,37.26,13.0,16.3Ba2+12.31Ca2+13.0Cd2+1,23.52,5.77CO2+1,2,34.79,6.7,9.7CU2+1,26.23,10.27Fe2+1,2,32.9,4.52,5.22Fe3+1,2,39.4,16.2,20.2Hg2+19.66Hg22+26.98Mg2+1,23.43,4.38Mn2+1,23.97,5.80Mn3+1,2,39.98,16.57,19.42Ni2+1,2,35.3,7.64，?8.5Pb2+1,24.91,6.76SC3+1,2,3,46.86,11.31,14.32,16.70Th4+424.48

Zn2+1,2,34.89,7.60,8.15Zr4+1,2349.80,17.14,20.86,21.155乳酸(Lacticacid)C%CHOHCOOHBa2+10.64Ca2+11.42Cd2+11.70CO2+11.90CU2+1,23.02,4.85Fe3+17.1Mg2+11.37Mn2+11.43Ni2+12.22Pb2+1,22.40,3.80SC2+15.2Th4+15.5Zn2+1,22.20,3.756水楊酸(Salicylicacid)C6H4(OH)COOHAl3+114.11Cd2+15.55CO2+1,26.72,11.42Cr2+1,28.4,15.3CU2+1,210.60,18.45Fe2+1,26.55,11.25Mn2+1,25.90,9.80Ni2+1,26.95,11.75Th4+1,2,3,44.25,7.60,10.05,11.60TiO2+16.09V2+16.3Zn2+16.857磺基水楊酸(5-sulfosalicylicacid)HO3SC6H3(OH)COOHAb+(0.1mol/L)1,2,313.20,22.83,28.89Be2+(0.1mol/L)1,211.71,20.81Cd2(0.1mol/L)1,216.68,29.08C02+(0.1mol/L)1,26.13,9.82Cr3+(0.1mol/L)19.56Cu2+(0.1mol/L)1,29.52,16.45Fe2+(0.1mol/L)1,25.9,9.9Fe3+(0.1mol/L)1,2,314.64,25.18,32.12Mn2+(0.1mol/L)1,25.24,8.24Ni2+(0.1mol/L)1,26.42,10.24

Zn2+(0.1mol/L)1,26.05,10.658酒石酸(Tartaricacid)(HOOCCHOH)2Ba2+21.62Bi3+38.30Ca2+1,22.98,9.01Cd2+12.8C02+12.1CU2+123,43.2,5.11,4.78,6.51Fe3+17.49Hg2+17.0Mg2+21.36Mn2+12.49Ni2+12.06Pb2+1,33.78,4.7Sn2+15.2Zn2+1,22.68,8.329丁二酸(Butanedioicacid)HOOCCH2CH2COOHBa2+12.08Be2+13.08Ca2+12.0Cd2+12.2C02+12.22CU2+13.33Fe3+17.49Hg2+27.28Mg2+11.20Mn2+12.26Ni2+12.36Pb2+12.8Zn2+11.610硫脲(Thiourea)H2NC(—S)NH2Ag+1,27.4,13.1Bi3+611.9Cd2+1,23406162.6,4.6Cu+3,413.0,15.4..2+Hg2,3,422.1,24.7,26.8Pb2+1,2341.431,4.7,8.311乙二胺(Ethyoenediamine)Ag+1,24.70,7.70Cd2+(20OC)1,2,35.47,10.09,12.09

h2nch2ch2nh2C02+1,2,35.91,10.64,13.94C03+1,2,318.7,34.9,48.69Cr2+1,25.15,9.19Cu+210.8CU2+1,2,310.67,20.0,21.0Fe2+1,2,34.34,7.65,9.70..2+Hg1,214.3,23.3Mg2+10.37Mn2+1,2,32.73,4.79,5.67Ni2+1,2,37.52,13.84,18.33Pd2+226.90V2+1,24.6,7.5Zn2+1,2,35.77,10.83,14.1112吡啶(Pyridine)C5H5NAg+1,21.97,4.35Cd2+1,2,3,41.40,1.95,2.27,2.50CO2+1,21.14,1.54CU2+1,2,3,42.59,4.33,5.93,6.54Fe2+10.71Hg2+1,2,35.1,10.0,10.4Mn2+1,2,3,41.92,2.77,3.37,3.50Zn2+1,2,3,41.41,1.11,1.61,1.9313甘氨酸(Glycin)h2nch2coohAg+1,23.41,6.89Ba2+10.77Ca2+11.38Cd2+1,24.74,8.60CO2+1,2,35.23,9.25,10.76CU2+1,2,38.60,15.54,16.27Fe2+(20°C)1,24.3,7.8Hg2+1,210.3,19.2Mg2+1,23.44,6.46Mn2+1,23.6,6.6Ni2+1,2,36.18,11.14,15.0Pb2+1,25.47,8.92Pd2+1,29.12,17.55Zn2+1,25.52,9.96142-甲基-8-羥基喹啉Cd2+1,2,39.00,9.00,16.60

(50%二噁烷丿(8-Hydroxy-2-methylquinoline)Ce3+17.71C02+1,29.63,18.50CU2+1,212.48,24.00Fe2+1,28.75,17.10Mg2+1,25.24,9.64Mn2+1,27.44,13.99Ni2+1,29.41,17.76Pb2+1,210.30,18.50UO22+1,29.4,17.0Zn2+1,29.82,18.72EDTAS_ga(H)啟_ga(H)va-uesofEDTA―L―L4―L―LoOCDoboo<JoOcno4o00ohoO