The nature of the counter-anion can determine the rate of water exchange in a metal aqua complex

被引:30
作者
Barge, A
Botta, M
Parker, D
Puschmann, H
机构
[1] Univ Piemonte Orientale, Dipartimento Sci & Tecnol Avanzate, I-10131 Alessandria, Italy
[2] Univ Durham, Dept Chem, Durham DH1 3LE, England
关键词
D O I
10.1039/b302211k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The nature of the counter-anion determines the water exchange rate for a series of cationic gadolinium complexes in aqueous solution, as a consequence of the ordering effect that the anion imposes on the structure of the second hydration sphere.
引用
收藏
页码:1386 / 1387
页数:2
相关论文
共 21 条
  • [1] Dependence of the relaxivity and luminescence of gadolinium and europium amino-acid complexes on hydrogencarbonate and pH
    Aime, S
    Barge, A
    Botta, M
    Howard, JAK
    Kataky, R
    Lowe, MP
    Moloney, JM
    Parker, D
    de Sousa, AS
    [J]. CHEMICAL COMMUNICATIONS, 1999, (11) : 1047 - 1048
  • [2] Prototropic vs whole water exchange contributions to the solvent relaxation enhancement in the aqueous solution of a cationic Gd3+ macrocyclic complex
    Aime, S
    Barge, A
    Botta, M
    Parker, D
    DeSousa, AS
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (20) : 4767 - 4768
  • [3] Controlling the variation of axial water exchange rates in macrocyclic lanthanide(III) complexes
    Aime, S
    Barge, A
    Batsanov, AS
    Botta, M
    Delli Castelli, D
    Fedeli, F
    Mortillaro, A
    Parker, D
    Puschmann, H
    [J]. CHEMICAL COMMUNICATIONS, 2002, (10) : 1120 - 1121
  • [4] NMR, relaxometric, and structural studies of the hydration and exchange dynamics of cationic lanthanide complexes of macrocyclic tetraamide ligands
    Aime, S
    Barge, A
    Bruce, JI
    Botta, M
    Howard, JAK
    Moloney, JM
    Parker, D
    de Sousa, AS
    Woods, M
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (24) : 5762 - 5771
  • [5] BLEMZEN A, 1996, J AM CHEM SOC, V118, P12777
  • [6] Botta M, 2000, EUR J INORG CHEM, P399
  • [7] The Hofmeister series: salt and solvent effects on interfacial phenomena
    Cacace, MG
    Landau, EM
    Ramsden, JJ
    [J]. QUARTERLY REVIEWS OF BIOPHYSICS, 1997, 30 (03) : 241 - 277
  • [8] Gadolinium(III) chelates as MRI contrast agents: Structure, dynamics, and applications
    Caravan, P
    Ellison, JJ
    McMurry, TJ
    Lauffer, RB
    [J]. CHEMICAL REVIEWS, 1999, 99 (09) : 2293 - 2352
  • [9] Charge density-dependent strength of hydration and biological structure
    Collins, KD
    [J]. BIOPHYSICAL JOURNAL, 1997, 72 (01) : 65 - 76
  • [10] HIGH-PRESSURE NMR-STUDY .38. WATER-EXCHANGE MECHANISMS ON THE TERBIUM TO THULIUM OCTAAQUALANTHANIDE(III) IONS - A VARIABLE-PRESSURE O-17 NMR-STUDY
    COSSY, C
    HELM, L
    MERBACH, AE
    [J]. INORGANIC CHEMISTRY, 1989, 28 (14) : 2699 - 2703