Synthesis and Structural Characterization of a Dinuclear Palladium(II) Complex with N,N',N'',N'''-Tetrakis(2-p-toluenesulfonamidoethyl)cyclam

Dinuclear palladium(II) complex with 1,4,8,11-tetrakis(2-p-toluenesulfonamidoethyl)-1,4,8,11-tetraazacyclotetradecane (H4tstaec), [Pd2(tstaec)], was synthesized and characterized by elemental analysis and IR and UV–vis spectroscopies. The crystal structures of H4tstaec and [Pd2(tstaec)] were determi...

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Published inBulletin of the Chemical Society of Japan Vol. 81; no. 11; pp. 1454 - 1460
Main Authors Wada, Shusaku, Kotera, Takanori, Mikuriya, Masahiro
Format Journal Article
LanguageEnglish
Published TOKYO The Chemical Society of Japan 15.11.2008
Chemical Soc Japan
Chemical Society of Japan
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
ANION
MRI CONTRAST
NICKEL(II) COMPLEX
BINUCLEAR COPPER(II) COMPLEXES
MACROCYCLIC LIGANDS
CRYSTAL-STRUCTURES
POLYAZA MACROCYCLES
PENDANT ARMS
METAL-COMPLEXES
COORDINATING GROUPS
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Summary:Dinuclear palladium(II) complex with 1,4,8,11-tetrakis(2-p-toluenesulfonamidoethyl)-1,4,8,11-tetraazacyclotetradecane (H4tstaec), [Pd2(tstaec)], was synthesized and characterized by elemental analysis and IR and UV–vis spectroscopies. The crystal structures of H4tstaec and [Pd2(tstaec)] were determined by single-crystal X-ray diffraction method. In the former ligand, the cyclam ring moiety takes a trans IV conformation with the tosyl arms pointing away from each other, whereas each palladium atom is bound by two nitrogen atoms of the cyclam moiety and two nitrogen atoms of the tosyl arms with Pd···Pd distance of 5.617(1) Å intervening the trans IV cyclam ring in the latter complex. DFT calculations were performed based on these crystal structures.
ISSN:0009-2673
1348-0634
DOI:10.1246/bcsj.81.1454