Dopamine Interaction in the Absence and in the Presence of Cu<sup>2+</sup> Ions with Macrocyclic and Macrobicyclic Polyamines Containing Pyrazole Units. Crystal Structures of [Cu<sub>2</sub>(<b>L</b><sub>1</sub>)(H<sub>2</sub>O)<sub>2</sub>](ClO<sub>4</sub>)<sub>4</sub> and [Cu<sub>2</sub>(H<sub>-1</sub><b>L</b><sub>3</sub>)](ClO<sub>4</sub>)<sub>3</sub>·2H<sub>2</sub>O
作者:Laurent Lamarque、Pilar Navarro、Carlos Miranda、Vicente J. Arán、Carmen Ochoa、Francisco Escartí、Enrique García-España、Julio Latorre、Santiago V. Luis、Juan F. Miravet
DOI:10.1021/ja010956p
日期:2001.10.31
The solution studies reveal a ready deprotonation of the pyrazole units induced by coordination to Cu2+. In the case of L2 (L2 = 3,6,9,12,13,16,19,22,25,26-decaazatricyclo[22.2.1.1(11,14)]octacosa-1(27),11,14(28),24-tetraene), deprotonation of both pyrazole subunits is already observed at pH ca. 4 for 2:1 Cu2+:L2 molar ratios. All three free receptors interact with dopamine in aqueous solution. L3
描述了含有吡唑片段作为间隔物的三种聚氮杂环芳烃与 Cu2+ 和多巴胺的相互作用。混合配合物 Cu2+-大环-多巴胺的形成已通过电位法在水溶液中进行了研究。配合物 [Cu2(L1)(H2O)2](ClO4)4*2H2O (4) (L1 = 13,26-dibenzyl-3,6,9,12,13,16,19,22, 25,26-十氮杂三环[22.2.1.1(11,14)]octacosa-1(27),11,14(28),24-四烯)和[Cu2(H-1L3)](HClO4)(ClO4)2* 2H2O (6) (L3 = 1,4,7,8,11,14,17,20,21,24,29,32,33,36-十四碳氮杂五环[12.12.12.1(6,9).1(19, 22).1(31,34)]hentetraconta-6,9(41),19(40),21,31,34(39)-己烯)。在第一个 (4) 中,每个 Cu2+