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Crystal structure of catena-poly[[[(2-eth-oxy-pyrazine-?N)copper(I)]-di-?2-cyanido] [copper(I)-?2-cyanido]].

ABSTRACT: In the asymmetric unit of the title coordination compound, {[Cu(CN)(C4H3OC2H5N2)][Cu(CN)]} n , there are two Cu atoms with different coordination environments. One CuI ion is coordinated in a triangular coordination geometry by the N atom of the 2-eth-oxy-pyrazine mol-ecule and by two bridging cyanide ligands, equally disordered over two sites exchanging C and N atoms, thus forming polymeric chains parallel to the c axis. The other Cu atom is connected to two bridging cyanide groups disordered over two sites with an occupancy of 0.5 for each C and N atom, and forming an almost linear polymeric chain parallel to the b axis. In the crystal, the two types of chain, which are orthogonal to each other, are connected by cuprophilic Cu?Cu inter-actions [2.7958?(13)?Å], forming two-dimensional metal-organic coordination layers parallel to the bc plane. The coordination framework is further stabilized by weak long-range (electrostatic type) C-H?? inter-actions between cyano groups and 2-eth-oxy-pyrazine rings.

SUBMITTER: Partsevska SV 

PROVIDER: S-EPMC6829724 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Crystal structure of <i>catena</i>-poly[[[(2-eth-oxy-pyrazine-κ<i>N</i>)copper(I)]-di-μ<sub>2</sub>-cyanido] [copper(I)-μ<sub>2</sub>-cyanido]].

Partsevska Sofiia V SV   Sirenko Valerii Y VY   Terebilenko Kateryna V KV   Malinkin Sergey O SO   Gural'skiy Il'ya A IA  

Acta crystallographica. Section E, Crystallographic communications 20191031 Pt 11

In the asymmetric unit of the title coordination compound, {[Cu(CN)(C<sub>4</sub>H<sub>3</sub>OC<sub>2</sub>H<sub>5</sub>N<sub>2</sub>)][Cu(CN)]} <sub><i>n</i></sub> , there are two Cu atoms with different coordination environments. One Cu<sup>I</sup> ion is coordinated in a triangular coordination geometry by the N atom of the 2-eth-oxy-pyrazine mol-ecule and by two bridging cyanide ligands, equally disordered over two sites exchanging C and N atoms, thus forming polymeric chains parallel to th  ...[more]

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