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Formation of New Unusual Cadmium Polymer with Bridging Thiocyanate Ions

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Abstract

The reaction of cadmium thiocyanate with 2-(methylamino)pyridine (2-Map) in an ethyl alcohol solution gave a new unusual coordination polymer [Cd2(NCS)4(2-Map)3]. The structure of the polymer was determined (CIF file CCDC no. 1917586). The crystals are triclinic, space group P\(\bar {1}\). The polymer elementary unit is composed of binuclear [Cd2 (NCS)4(2-Map)3] moiety in which the Cd atoms are connected by μ-NCS bridges. The Cd(1) environment is completed to an octahedron (CdS2N4) via coordination of two pyridine nitrogen atoms of the 2-Map molecules in the apical positions. The Cd(2) coordination environment (CdS2N3) is a trigonal bipyramid supplemented by the pyridine nitrogen atom of the 2-Map molecule. The uncoordinated nitrogen atoms of the NH group are involved in the intrachain H-bonds with the NCS-group nitrogen atoms. The luminescence spectrum of the synthesized compounds was recorded.

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ACKNOWLEDGMENTS

X-ray diffraction, elemental analysis and spectroscopic studies were carried out using research equipment of the Center for Collective Use of the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences.

FUNDING

The study of complex compounds was performed within the State Assignment of the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, in the field of fundamental scientific research.

Author information

Correspondence to Yu. V. Kokunov or V. V. Kovalev.

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The authors declare that they have no conflicts of interest.

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Translated by Z. Svitanko

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Kokunov, Y.V., Kovalev, V.V., Kiskin, M.A. et al. Formation of New Unusual Cadmium Polymer with Bridging Thiocyanate Ions. Russ J Coord Chem 45, 831–835 (2019). https://doi.org/10.1134/S1070328419120042

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Keywords:

  • coordination polymer
  • cadmium thiocyanate
  • 2-methylaminopyridine
  • structure