New strategies in the development of polynuclear complexes. Crystal structure of the tetranuclear copper(II) complex [Cu-4(L1)(2)(OH)(4)Cl-2(H2O)(2)](2)(H3O2) (ClO4)(2)Cl center dot 2H(2)O (L1=2,5,8,11-tetraaza[12](1,4)naphthalenecyclophane)

摘要

The preparation and interaction of the new polyaza[n]naphthalenophanes 2,5,8,11-tetraaza[12](1,4)naphthalenophane (L1) and 2,6,9,13-tetraaza[14](1,4)naphthalenophane (L2) with hydrogen ions and Cu2+ is described. The crystal structure of the new tetranuclear copper(II) complex [Cu-4(L1)(2)(OH)(4)Cl-2(H2O)(2)](2)(H3O2)(ClO4)(2)Cl . 2H(2)O (L1 = 2,5,8,11-tetraaza[12](1,4)naphthalenophane) is presented and discussed. A variety of intra- and intermolecular forces contribute to the particular organisation of the crystal. The solution studies indicate the formation of similar tetranuclear species for L1 while for L2 just mononuclear 1:1 species are detected. (C) 2000 Elsevier Science S.A. All rights reserved. [References: 34]