配合物穩(wěn)定常數(shù)

1、配合物穩(wěn)定常數(shù)Stability Con sta nts of Coordin ati on Compo unds絡(luò)合反響的平衡常數(shù)用配合物穩(wěn)定常數(shù)表示，又稱(chēng)配合物形成常數(shù)。此常數(shù)值越大，說(shuō)明形成的配合物越穩(wěn)定。 其倒數(shù)用來(lái)表示配合物的解離程度，稱(chēng)為配合物的不穩(wěn)定常數(shù)。以下表格中，表1中除特別說(shuō)明外是在 25C下，離子強(qiáng)度I =0 ;表2中離子強(qiáng)度都是在有限的范圍內(nèi)， I - 0。表中3 n表示累積穩(wěn)定常數(shù)。金屬-無(wú)機(jī)配位體配合物的穩(wěn)定常數(shù)Stability Con sta nts of Metal Ion-I norganic Coord in ati on Compo unds序號(hào)(No.

2、)配位體(Ligand)金屬離子(Metal ion)配位體數(shù)目n(Number of ligand)lg 31NH3Ag+1,23.24,7.05Au 3+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,

3、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+1,2,3,49.05,17.32,19.74,2

4、1.00In3+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+1,2,3,4,5,69.7,16.6,21.2,23.9,29.2,31.6U4+10.18Y 3+11.323Cl-Ag+1,2,43.04,5.04,5.30Bi3+1,2,3,42.44,4.7,5.0,5.6Cd2+1,2,3,41.95,2.50,2.60,2.8

5、0Co3+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,

6、0.38Zn2+1,2,3,40.43,0.61,0.53,0.20Zr4+1,2,3,40.9,1.3,1.5,1.24CN-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+635.0Fe3+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

7、.10Bi3+11.42Co2+10.4Cr3+1,2,34.36,8.70,11.20Cu2+10.9Fe2+1Fe3+1,2,3,5Ga3+1,2,3Hf4+1,2,3,4,5,6Hg2+1In3+1,2,3,4Mg 2+1Mn2+1Ni2+1Pb2+1,2Sb3+1,2,3,4Sn2+1,2,3Th4+1,2,3,4TiO 2+1,2,3,4Zn 2+1Zr4+1,2,3,4,5,66I-Ag+1,2,3Bi3+1,4,5,6Cd2+1,2,3,4Cu +2Fe3+1Hg2+1,2,3,4Pb2+1,2,3,4Pd2+4Tl +1,2,3Tl 3+1,2,3,47OH-Ag+1,2Al3

8、+1,4As3+1,2,3,4Be2+1,2,3Bi3+1,2,4Ca2+1Cd2+1,2,3,4Ce3+1Ce4+1,2Co2+1,2,3,4Cr3+1,2,4Cu2+1,2,3,4Fe2+1,2,3,4Fe3+1,2,3Hg2+1,2,3In3+1,2,3,4Mg2+1Mn2+1,3Ni2+1,2,3Pa4+1,2,3,4Pb2+1,2,3Pd2+1,2Sb3+2,3,4Sc3+1Sn2+1Th 3+1,2Ti3+1Zn2+1,2,3,4Zr4+1,2,3,48NO 3-Ba2+1Bi 3+1Ca2+1Cd2+1Fe3+1Hg2+1Pb2+1Tl +1Tl 3+19P2°74-B

9、a2+1Ca2+1Cd3+1Co2+1Cu2+1,2Hg2+2Mg2+1Ni2+1,2Pb2+1,2Zn2+1,210SCN-Ag+1,2,3,4Bi3+123,4,5,6Cd2+1,2,3,4Cr3+1,2Cu +1,2Cu2+1,2Fe3+123,4,5,6Hg2+1,2,3,4Ni2+1,2,3Pb2+1,2,3Sn2+1,2,3Th4+1,2Zn2+1,2,3,411S2O32-Ag+1,2Cd2+1,2Cu +1,2,3Fe3+1Hg2+2,3,4Pb2+2,312SO42-Ag+1Ba2+1Bi3+1,2,3,4,5Fe3+1,2Hg2+1,2ln3+1,2,3Ni2+1Pb2+1

10、Pr3+1,2Th 4+1,2Zr4+1,2,3金屬-有機(jī)配位體配合物的穩(wěn)定常數(shù)表中離子強(qiáng)度都是在有限的范圍內(nèi)，I心0。Stability Con sta nts of Metal Ion-Organic Coordi nati on Compo unds序號(hào)(No.)配位體(Ligand)金屬離子(Metal ion)配位體 數(shù)目n(Number of liga nd)lg向1乙二胺四乙酸(EDTA) (HOOCCH 2)2NCH 22Ag +1Al 3+1Ba2+1Be2+1Bi3+1Ca2+1Cd2+1Co2+1Co3+1Cr3+1Cu2+1Fe2+1Fe3+1Ga3+1.2+Hg1In

11、3+1Li +1Mg2+1Mn 2+1Mo(V)1Na+1Ni2+1Pb2+1Pd2+1Sc2+1Sn2+1Sr2+1Th 4+1TiO 2+1ti3+1u4+1VO 2+1Y3+1Zn 2+1Zr4+12乙酸(Acetic acid)CH3C00HAg +1,20.73,0.64Ba2+10.41Ca2+10.6Cd2+1,2,31.5,2.3,2.4Ce3+1,2,3,41.68,2.69,3.13,3.18Co2+1,21.5,1.9Cr3+1,2,34.63,7.08,9.60Cu2+(20 °C )1,22.16,3.20ln3+1,2,3,43.50,5.95,7.90,

12、9.08Mn 2+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+1,2,3,46.17,11.28,15.10,18.3Zn 2+11.53乙酰丙酮Al 3+(30 C)1,28.6,15.5(Acetyl acet one)CH 3COCH 2CH 3Cd2+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+1,2,311.4,22.1,26.7.2+Hg221.5Mg

13、2+1,23.65,6.27Mn 2+1,24.24,7.35Mn 3+33.86Ni2+(20 °C)1,2,36.06,10.77,13.09Pb2+26.32Pd2+(30 C)1,216.2,27.1Th 4+1,2,3,48.8,16.2,22.5,26.7Ti3+1,2,310.43,18.82,24.90V2+1,2,35.4,10.2,14.7Zn 2+(30 C)1,24.98,8.81Zr4+1,2,3,48.4,16.0,23.2,30.14草酸(Oxalic acid)HOOCCOOHAg +12.41Al 3+1,2,37.26,13.0,16.3Ba2+1

14、2.31Ca2+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+19.66Hg 22+26.98Mg 2+1,23.43,4.38Mn 2+1,23.97,5.80Mn 3+1,2,39.98,16.57,19.42Ni2+1,2,35.3,7.64,8.5Pb2+1,24.91,6.76Sc3+1,2,3,46.86,11.31,14.32,16.70Th 4+424.48Zn 2+1,2,34.89,7.60,8.15Zr4+1

15、,2,3,49.80,17.14,20.86,21.155乳酸(Lactic acid)CH3CH0HC00HBa2+10.64Ca2+11.42Cd2+11.70Co2+11.90Cu2+1,23.02,4.85Fe3+17.1Mg2+11.37Mn 2+11.43Ni2+12.22Pb2+1,22.40,3.80Sc2+15.2Th 4+15.5Zn 2+1,22.20,3.756水楊酸(Salicylic acid)C6H4(OH)COOHAl 3+114.11Cd2+15.55Co2+1,26.72,11.42Cr2+1,28.4,15.3Cu2+1,210.60,18.45Fe2+1

16、,26.55,11.25Mn 2+1,25.90,9.80Ni2+1,26.95,11.75Th4+1,2,3,44.25,7.60,10.05,11.60TiO 2+16.09V2+16.3Zn2+16.857磺基水楊酸(5-sulfosalicylic acid)HO3SC6H3(OH)COOHAl3+(0.1mol/L)1,2,313.20,22.83,28.89Be2+(0.1mol/L)1,211.71,20.81Cd2 (0.1mol/L)1,216.68,29.08Co2+ (0.1mol/L)1,26.13,9.82Cr3+(0.1mol/L)19.56Cu2+(0.1mol/

17、L)1,29.52,16.45Fe2+(0.1mol/L)1,25.9,9.9Fe3+(0.1mol/L)1,2,314.64,25.18,32.12Mn 2+(0.1mol/L)1,25.24,8.24Ni2+(0.1mol/L)1,26.42,10.24Zn 2+(0.1mol/L)1,26.05,10.658酒石酸(Tartaric acid) (HOOCCHOH) 2Ba2+21.62Bi3+38.30Ca2+1,22.98,9.01Cd2+12.8Co2+12.1Cu2+123,43.2,5.11,4.78,6.51Fe3+17.49Hg2+17.0Mg2+21.36Mn 2+12.

18、49Ni2+12.06Pb2+1,33.78,4.7Sn2+15.2Zn 2+1,22.68,8.329丁二酸(Buta nedioic acid)HOOCCH 2CH 2COOHBa2+12.08Be2+13.08Ca2+12.0Cd2+12.2Co2+12.22Cu2+13.33Fe3+17.49Hg2+27.28Mg2+11.20Mn 2+12.26Ni2+12.36Pb2+12.8Zn 2+11.610硫脲(Thiourea)H 2NC( S)NH2Ag +1,27.4,13.1Bi3+611.9Cd2+1,2,3,40.6,1.6,2.6,4.6Cu +3,413.0,15.4.2+

19、Hg2,3,422.1,24.7,26.8Pb2+1,2,3,41.4,3.1,4.7,8.311乙二胺(Ethyoe nediami ne)Ag +1,24.70,7.70Cd2+(20 °C )1,2,35.47,10.09,12.09H2NCH 2CH 2NH2Co2+1,2,35.91,10.64,13.94Co3+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+Hg1,214.3,23.3Mg 2+10.37Mn 2+1,2,32.7

20、3,4.79,5.67Ni2+1,2,37.52,13.84,18.33Pd2+226.90V2+1,24.6,7.5Zn 2+1,2,35.77,10.83,14.1112吡啶(Pyridi ne)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+1,2,35.1,10.0,10.4Mn 2+1,2,3,41.92,2.77,3.37,3.50Zn 2+1,2,3,41.41,1.11,1.61,1.9313甘氨酸(Glyc

21、i n)H2NCH 2COOHAg +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+1,23.44,6.46Mn 2+1,23.6,6.6Ni2+1,2,36.18,11.14,15.0Pb2+1,25.47,8.92Pd2+1,29.12,17.55Zn 2+1,25.52,9.96142-甲基-8-羥基喹啉Cd2+1,2,39.00,9.00,16.60(5

22、0%二噁烷)(8-Hydroxy-2-methyl quino li ne)Ce3+17.71Co2+1,29.63,18.50Cu2+1,212.48,24.00Fe2+1,28.75,17.10Mg2+1,25.24,9.64Mn 2+1,27.44,13.99Ni2+1,29.41,17.76Pb2+1,210.30,18.50UO22+1,29.4,17.0Zn2+1,29.82,18.72EDTA 的 lg a(H)值lg a(H)Values of EDTApHlg aY(H)pHlg a(H)pHlg aY(H)pHlg aY(H)pHlg a(H)0.023.642.511.905.06.457.52.7810.00.450.123.062.611.625.16.267.62.6810.10.390.222.472.711.355.26.077.72.5710.20.330.321.892.811.095.35.887.82.4710.30.280.421.322.910.845.45.697.92.3710.4