Synthesis, characterization and molecular structures of the hybrid organic-inorganic salts of N-alkyl-1,3,5-triaza-7-phosphaadamantane (alkyl = methyl, ethyl) and tetra(isothiocyanato)cobalt(II)

Łukasz Jaremko, Alexander M. Kirillov, Piotr Smoleński, Tadeusz Lis, M. Fátima C.Guedes da Silva, Armando J.L. Pombeiro*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The reactions of CoCl2 with the alkylated aminophosphine N-alkyl-1,3,5-triaza-7-phosphaadamantane iodide [PTA-R]I (R = Me, Et) and NaSCN, in an ethanolic medium at ambient temperature, lead to the self-assembly formation of the hybrid 2:1 organic-inorganic salts [PTA-R]2[Co(NCS)4] (R = Me (1); Et (2)), which have been characterized by IR spectroscopy, FAB+-MS, elemental and single crystal X-ray diffraction structural analyses. The molecular structures bear two cage-like [PTA-R]+ cations and one discrete tetrahedral [Co(NCS)4]2- anion. Adjacent anions are linked via repeating weak intermolecular S⋯S contacts forming 1D supramolecular inorganic networks, acting as hosts for the [PTA-R]+ guests. 1 and 2 represent the first structurally characterized examples of compounds where any uncoordinated cage-like PTA derivative acts as a component of a hybrid organic-inorganic material.

Original languageEnglish (US)
Pages (from-to)1645-1649
Number of pages5
JournalInorganica Chimica Acta
Volume362
Issue number5
DOIs
StatePublished - Apr 1 2009
Externally publishedYes

Keywords

  • 1,3,5-Triaza-7-phosphaadamantane (PTA)
  • Cobalt
  • Host-guest chemistry
  • Structure elucidation
  • Thiocyanate

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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