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The First Self‐Assembled Dinuclear Triple‐Helical Lanthanide Complex: Synthesis and Structure
Author(s) -
Piguet Claude,
Williams Alan F.,
Bernardinelli Gérald
Publication year - 1992
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.199216221
Subject(s) - europium , lanthanide , ligand (biochemistry) , crystallography , chemistry , triple helix , ion , schematic , stereochemistry , organic chemistry , biochemistry , receptor , electronic engineering , engineering
Eighteen europium–nitrogen bonds are formed when a specially designed bis(terdentate) nitrogen‐containing ligand L 1 reacts with europium( III ) perchlorate. In the resulting triple‐helical dinuclear cation [Eu 2 L 3 1 ] 6+ 1 , the metals are coordinated to nine nitrogen atoms each, forming a slightly distorted tricapped trigonal prism (see schematic representation on the right; the open circles are the coordinating N atoms of L 1 , solid circles the europium( III ) ions).