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A macrocyclic binuclear copper(II) complex of the ligand N,N′-bis­(pyridin-2-yl­methyl)­pyrazine-2,3-dicarbox­amide

✍ Scribed by Cati, Dilovan S. ;Stoeckli-Evans, Helen

Publisher
International Union of Crystallography
Year
2004
Tongue
English
Weight
413 KB
Volume
60
Category
Article
ISSN
1600-5368

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✦ Synopsis

Single-crystal X-ray study T = 153 K Mean '(C±C) = 0.005 A Ê R factor = 0.029 wR factor = 0.060 Data-to-parameter ratio = 11.7

For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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## Abstract The stability constants of the Cu^II^ chelates with the tripodal heptadentate ligand tris{2‐[(2‐pyridylmethyl)amino]ethyl}amine (=__N__′‐(pyridin‐2‐ylmethyl)‐__N,N__‐bis{2‐[(pyridin‐2‐ylmethyl)amino]ethyl}ethane‐1,2‐diamine; tpaa), determined by potentiometry and UV spectrometry, show t