Wechselwirkungen in Kristallen, 35 [1, 2]. Einkristallzüchtung von Na⊕⊖C(NO2)3 [***] aus Etherlösungen zu einem polymeren Band [(Na⊕⊖C(NO2)3) Dioxan]∞ und einem Lösungsmittel-getrennten Ionenpaar [(Na⊕/18-Krone-6)(THF)2]⊕[(Na⊕/18-Krone-6)(ONO-C⊖(NO2)2)2]⊖
Interactions in Crystals, 35 [1, 2]. Single Crystal Growths of Na⊕⊖C(NO2)3[***] from Ether Solutions to a Polymer Band [(Na⊕⊖C(NO2)3)Dioxane]∞ and to a Solvent-Separated Ion Pair [(Na⊕/18-Crown-6)(THF)2]⊕[(Na⊕/18-Crown-6)(ONO-C⊖(NO2)2)2]⊖
- The sodium salt of the most simple polynitro-substituted hydrocarbon anion. Na⊕⊖C(NO2)3, (for a hazard warning cf. [***]) crystallizes from ether solutions without and with addition of 18-crown-6 either in a polymer band. [(Na⊕⊖C(NO2)3)dioxane]∞, or as a solvent- separated ion pair, [(Na⊕/18-crown-6)(THF2]⊕[(Na⊕/18-crown-6)(O2N-C⊖(NO2)2)2]⊖. The Na⊕ cations are each 8-fold coordinated in hexagonal bipyramidal arrangement. According to extensive quantum-chemical calculations based on the structure coordinates, the formation of these novel salts can be traced back to the charge distribution in the anions ⊖C(NO2)3. which due to negatively charged oxygen centers are favorable complex ligands. The structure determining effects of solvation are discussed.
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