Die Kristallstrukturen von {Li3(12‐Krone‐4)2[HC(CN)2]3}, {Na(15‐Krone‐5)‐[HC(CN)2]} und {Na[N(nBu)4][HC(CN)2]2 · THF}
- 26 January 1992
- journal article
- Published by Wiley in European Journal of Inorganic Chemistry
- Vol. 125 (1) , 87-92
- https://doi.org/10.1002/cber.19921250114
Abstract
The Crystal Structures of {Li3(12‐crown‐4)2[HC(CN)2]3}, {Na(15‐crown‐5)[HC(CN)2]}, and {NaN(nBu)4[HC(CN)2]2 · THF}The preparation and the crystal structures of the title compounds 1—3 are described. 1 forms a polymeric chain structure, in which one of the lithium ions is linked by Li…NCC(H)CN… bridges. The remaining lithium ions form (12‐crown‐4)Li[NCC(H)CN] units, which are coordinated by one of the nitrogen atoms of the dicyanomethanide ions with the lithium ions of the chain. 2 forms an ion pair, in which the sodium ion is coordinated by the five oxygen atoms of the crown ether molecule and by one nitrogen atom of the dicyanomethanide ion. 3 has a threedimensional network, in which the sodium ions are coordinated in a distorted tetrahedral manner by the nitrogen atoms of the dicyanomethanide ions. In the cavities of the network the tetrabutylammonium ions and the THF molecules are found.Keywords
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