Premium
Pt as Mediator of Strong Antiferromagnetic Coupling between Two Cu II Ions in a Heteronuclear Cu II Pt II Cu II Complex of the Model Nucleobase 1‐Methylcytosinate
Author(s) -
Hegmans Alexander,
Zangrando Ennio,
Freisinger Eva,
Pichierri Fabio,
Randaccio Lucio,
Mealli Carlo,
Gerdan Michael,
Trautwein Alfred X.,
Lippert Bernhard
Publication year - 1999
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/(sici)1521-3765(19991001)5:10<3010::aid-chem3010>3.0.co;2-o
Subject(s) - heteronuclear molecule , nucleobase , diamagnetism , antiferromagnetism , ion , crystallography , chemical physics , coupling (piping) , chemistry , stereochemistry , materials science , condensed matter physics , physics , nuclear magnetic resonance spectroscopy , dna , organic chemistry , quantum mechanics , biochemistry , magnetic field , metallurgy
Trinuclear Cu II PtCu II complexes (see scheme) are formed with four bridging 1‐methylcytosinate nucleobases. These compounds are diamagnetic as a result of the strong exchange interaction ( J ≅1000 cm −1 ( 2 b )), despite a separation of approximately 5 Å between the Cu II centers.