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Tetra-μ2-cyano-κ8C:N-μ2-2,6-dimethyl­pyrazine-κ2N:N′-hexa­kis(2,6-dimethyl­pyrazine-κN)octa-μ2-thio­cyanato-κ16N:S-deca­copper(I,II)

✍ Scribed by Jess, Inke ;Näther, Christian

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
330 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

The asymmetric unit of the title compound [Cu~8~
^I^Cu~2~
^II^(CN)~4~(NCS)~8~(C~6~H~8~N~2~)~7~], consists of six crystallographically independent Cu atoms, four thiocyanate anions and two cyanide anions, as well as four 2,6-dimethylpyrazine ligands. Two of the six Cu atoms and one of the four 2,6-dimethylpyrazine ligands are located on centres of inversion. The ligand on a special position is therefore disordered due to symmetry. Altogether there are two copper(II) and eight copper(I) cations in the formula unit. The copper(II) cations are each coordinated by four N atoms within a slightly distorted square-planar coordination. The copper(I) cations, on the other hand, are coordinated by four ligands or anions within distorted tetrahedra. From this arrangement, a three-dimensional coordination network is formed.

📜 SIMILAR VOLUMES

Poly­[[(2-iodo­pyrazine-κN4)copper(I)]-μ
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✍ Näther, Christian ;Wriedt, Mario ;Jeß, Inke 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 581 KB

In the crystal structure of the title compound, [Cu(NCS)-(C 4 H 3 IN 2 )] n , each Cu atom is coordinated by three thiocyanate anions and one 2-iodopyrazine ligand within a distorted tetrahedron. The Cu-coordinated units form dimers, which are connected into layers by the thiocyanate anions.

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✍ Huang, Ping-Yun ;Wang, Jing-Guo 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 265 KB

Single-crystal X-ray study T = 296 K Mean (C-C) = 0.004 A R factor = 0.030 wR factor = 0.085 Data-to-parameter ratio = 12.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

Tetra­kis(μ2-2,2-dimethyl­propanoato-κ2O
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✍ Blewett, Gavin ;Esterhuysen, Catharine ;Bredenkamp, Martin W. ;Koch, Klaus R. 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 225 KB

The title compound, [Cu 2 (C 5 H 9 O 2 ) 4 (C 5 H 5 N) 2 ], consists of centrosymmetric binuclear cage units with four dimethylpropanoate bridges linking the two Cu centres [CuÁ Á ÁCu = 2.6229 (9) A ˚]. The square-pyramidal Cu coordination is completed by a pyridine N atom at the apical site. Astack

Poly[μ-1,3-thia­zolidine-2-thione-κ2S2:S
Poly[μ-1,3-thia­zolidine-2-thione-κ2S2:S2-μ-thio­cyanato-κ2S:N-copper(I)]
✍ Saithong, Saowanit ;Pakawatchai, Chaveng ;Charmant, Jonathan P. H. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 188 KB

The title compound, [Cu(SCN)(C~3~H~5~NS~2~)]~__n__~, was prepared from the direct reaction between copper(I) thiocyanate and 1,3-thiazolidine-2-thione. The structure is an infinite two-dimensional polymer, parallel to the __ac__ plane, with tetrahedrally distorted Cu atoms which are coordinated by t