Stabilization of Substituted Triazenide Oxides: Synthesis and X‐ray Structural Features of Polymeric Potassium 3‐(4‐carboxylatophenyl)‐1‐methyltriazene N‐oxide‐hydrate, {K[O2C‐C6H4‐N(H)NN(CH3)O]·4H2O}n |
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Authors: | Manfredo Hörner Prof Dr Aline Joana Rolina Wohlmuth Alves dos Santos |
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Institution: | 1. Santa Maria, RS / Brazil, Universidade de Santa Maria, Departamento de QuímicaUniversidade de Santa Maria, Departamento de Química, Caixa Postal 5031, 97.110‐970 Santa Maria, RS / Brazil;2. Santa Maria, RS / Brazil, Universidade de Santa Maria, Departamento de Química |
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Abstract: | 3‐(4‐carboxyphenyl)‐1‐methyltriazene N‐oxide reacts with KOH in methanol/pyridine to give {KO2C‐C6H4‐N(H)NN(CH3)O]·4H2O}n, Potassium‐3‐(4‐carboxylatophenyl)‐1‐methyltriazene N‐oxide). The terminal carboxylato group of the anion does not interact with the cation. In the crystal lattice of {K(C8H8N3O3)·4H2O}n each three of the four water molecules interact with two potassium cations, every K+ ion being the centre of six bridging K···O interactions. Potassium cations interact further with the terminal N‐oxigen atom of single C8H8N3O3]? anions achieving two parallel {C8H8N3O3?K+}n chains, which are linked through water molecules. The resulting polymeric, one‐dimensional chain, is operated by a screw axis 21 parallel to the crystallographic direction 010], along and equidistant to the K+ centres. The coordination of the K+ centres involves a distortion of the boat conformation of elementary sulfur (S8) with the ideal C2v symmetry. |
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Keywords: | Triazenes (substituted) Triazene (deprotonated) N‐oxides Triazenides |
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