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Cobalt 2,2 '-biimidazole complexes co-crystallised with di-acids - synthesis, structure and quantum chemical calculations

Författare:
Publiceringsår: 2004
Språk: Engelska
Sidor: 354-359
Publikation/Tidskrift/Serie: CrystEngComm
Volym: 6
Dokumenttyp: Artikel
Förlag: Royal Society of Chemistry

Sammanfattning

The synthesis and crystal structure of Co(Hbiim)(2)(H(2)biim)(2)(p-OOCC6H4COOH)(2).H2O (2) is presented. The cobalt(III) complexes are bridged by terephthalates and water molecules, giving a rare, five-fold interpenetrated, net built from 3-connected nodes. The vertex symbol (topology) of this net is determined to 4 122 122, 4 126, 12(4) 12(6) 12(6), or 4 12(2), 4 12(2), 12(3), using the Wellsian point symbol system. However, depending on the interpretation of the hydrogen bond pattern, this structure may also be interpreted as a single self-interpenetrating net via a water bridge. Quantum chemical calculations (DFT and semi-empirical methods) were used to investigate which is the more appropriate description by estimation of the directional forces in the structure. This approach favours five interpenetrating nets.

Disputation

Nyckelord

  • Chemistry

Övrigt

Published
Yes
  • ISSN: 1466-8033

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