Synthesis, structural characterization and study of {[K(H2mna)2]+ [K(ΞΌ-OH)2]-4H2O}n (H2mna = 2-mercaptonicotinic acid). A supramolecular architecture of inorganic/metal-organic hybrid self-assembled by strong hydrogen bonds and Ο€-Ο€ interactions

 
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2006 (EN)
Synthesis, structural characterization and study of {[K(H2mna)2]+ [K(ΞΌ-OH)2]-4H2O}n (H2mna = 2-mercaptonicotinic acid). A supramolecular architecture of inorganic/metal-organic hybrid self-assembled by strong hydrogen bonds and Ο€-Ο€ interactions (EN)

Xanthopoulou, M. N. (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Xanthopoulou, M. N. (EN)

Crystals of a water soluble, potassium(I) complex with the heterocyclic thioamide; 2-mercapto-nicotinic acid (H2mna), of formula {[K(H2mna)2]+.[K(ΞΌ-OH)2]-.4H2O}n (1) were grown from the filtrate of the reaction between 2-mercapto-nicotinic acid with KOH in a molar ratio 1:1.5 in water. The complex has been characterized by elemental analysis, TG-DTA, 1H NMR and FT-IR spectroscopic techniques and X-ray powder diffraction. The single crystal structure of complex (1) has been determined by X-ray diffraction at ambient conditions. The polymeric structure of the complex is microporous, where water molecules are retained. The water molecules can be reversibly removed. The complex is ionic, containing [S-K+-S] linkages and an infinite ribbon of {[K(ΞΌ-OH)2]-}n as a counter anion. Strong hydrogen bonds and Ο€-Ο€ interactions stabilize the supramolecular architecture of the inorganic/metal-organic hybrid formed. Heating of (1) at 100 Β°C for 4 h forms the {[K(H2mna)2]+ .[K(ΞΌ-OH)2]-}n (2), which retains the framework structure although the coordinated water molecules were evacuated. (EN)

Inorganic chemistry (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

Inorg. Chim. Acta (EN)

English

2006


Elsevier (EN)



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