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The Organization of Two “Soft” (Cu 2⊕ , Ni 2⊕ ) Metal Centers in Heterotrinuclear Complexes of a Macrocyclic Ligand by Cocomplexation with Ba 2⊕
Author(s) -
van Veggel Frank C. J. M.,
Bos Martinus,
Harkema Sybolt,
Verboom Willem,
Reinhoudt David N.
Publication year - 1989
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198907461
Subject(s) - copper , nickel , ligand (biochemistry) , chemistry , metal , crystallography , macrocyclic ligand , stereochemistry , crystal structure , receptor , organic chemistry , biochemistry
The short distances between the two transitionmetal centers in the trinuclear complexes 3 are caused by cocomplexation of Ba 2⊕ : Cu 2⊕ :…Cu 2⊕ 3.50, Ni 2⊕ …Ni 2⊕ 3.42 Å. The macrocyclic ligand is formed as the complex 2 from o ‐phenylenediamine and 1 in the presence of Ba 2⊕ . Complexes 3 , in turn, are obtained by treatment of 2 with copper or nickel acetate.