Module-Based Assembly of Copper(II) Chloranilate Compounds: Syntheses, Crystal Structures, and Magnetic Properties of {[Cu2(CA)(terpy)

Mitsuhiro Kawahara, Khayrul Kabir, Koichi Yamada, Keiichi Adachi, Hitoshi Kumagai, Yasuo Narumi, Koichi Kindo, Susumu Kitagawa, Satoshi Kawata

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32 Citations (Scopus)

Abstract

Two new copper(II) compounds of chloranilate and 2,2′:6′ ,2″-terpyridine have been synthesized, and the structures have been solved by the single-crystal X-ray diffraction method. The crystal structure of {[Cu2(CA)(terpy)2][Cu(CA)2]}n (1), where H2CA = chloranilic acid and terpy = 2,2′:6′ ,2″-terpyridine, consists of two modules, the dimer unit [Cu 2(CA)(terpy)2]2+ and the anionic mononuclear unit [Cu(CA)2]2-, forming an alternated chain. The chain is stabilized by semicoordinating and additional but efficient secondary bonding interactions. The crystal structure of {[Cu2(CA)(terpy) 2(dmso)2][Cu(CA)2(dmso) 2](EtOH)}n (2), where dmso = dimethyl sulfoxide, consists of solvent molecules and two discrete modules, the dimer unit [Cu 2(CA)(terpy)2(dmso)2]2+ and the anionic mononuclear unit [Cu(CA)2(dmso)2]2-. The dimer units form a layer by secondary bonding interactions, and the monomer units and ethanol molecules are introduced between the layers. The magnetic properties of 1 and 2 have been investigated in the temperature range 2.0-300 K. A weak ferromagnetic interaction was observed in 1, Ja = 2.36 cm-1 and zJb = -0.68 cm-1 while no exchange coupling was observed in 2.

Original languageEnglish
Pages (from-to)92-100
Number of pages9
JournalInorganic chemistry
Volume43
Issue number1
DOIs
Publication statusPublished - 2004 Jan 12

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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    Kawahara, M., Kabir, K., Yamada, K., Adachi, K., Kumagai, H., Narumi, Y., Kindo, K., Kitagawa, S., & Kawata, S. (2004). Module-Based Assembly of Copper(II) Chloranilate Compounds: Syntheses, Crystal Structures, and Magnetic Properties of {[Cu2(CA)(terpy). Inorganic chemistry, 43(1), 92-100. https://doi.org/10.1021/ic035044y