Crystal structure of catena-poly[[[trans-bis(aceto­nitrile-κN)diaquacobalt(II)]-μ-pyrazine-κ2 N:N′] dinitrate]

نویسندگان

  • Chen Liu
  • Ashley C. Felts
  • Annaliese E. Thuijs
  • Aaron Useche
  • Khalil A. Abboud
چکیده

The central structural motif of the title coordination polymer, [Co(NO3)2(C4H4N2)(CH3CN)2(H2O)2] n , is a chain composed of Co(II) ions linked by bis-monodentate bridging pyrazine ligands through their N atoms. The Co(II) ion is located on an inversion center and is additionally coordinated by two O atoms of water mol-ecules and two N atoms of aceto-nitrile mol-ecules. The resultant N4O2 coordination sphere is distorted octa-hedral. The linear cationic chains extend parallel to the a axis and are aligned into layers parallel to the ac plane. Nitrate anions are situated in the space between the Co(II) chains and form O-H⋯O hydrogen bonds with the coordinating water mol-ecules, leading to a three-dimensional network structure. Weak C-H⋯O hydrogen bonds are also present between pyrazine or aceto-nitrile mol-ecules and the nitrate anions.

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عنوان ژورنال:

دوره 72  شماره 

صفحات  -

تاریخ انتشار 2016