Synthesis, structural characterization and study of {{K(H(2)mna)(2)](+)center dot[K(mu-OH)(2)](-)center dot 4H(2)O}(n) (H(2)mna=2-mercapto-nicotinic acid). A supramolecular architecture of inorganic/metal-organic hybrid self-assembled by strong hydrogen bonds and pi-pi interactions

 
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2006 (EN)
Synthesis, structural characterization and study of {{K(H(2)mna)(2)](+)center dot[K(mu-OH)(2)](-)center dot 4H(2)O}(n) (H(2)mna=2-mercapto-nicotinic acid). A supramolecular architecture of inorganic/metal-organic hybrid self-assembled by strong hydrogen bonds and pi-pi 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 (H(2)mna), of formula {[K(H2mna)(2)](+) center dot [K(mu-OH)(2)](-) center dot 4H(2)O}(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, H-1 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(mu-OH)(2)](-)}(n) as a counter anion. Strong hydrogen bonds and pi-pi interactions stabilize the supramolecular architecture of the inorganic/metal-organic hybrid formed. Heating of (1) at 100 degrees C for 4 h forms the {[K(H2mna)(2)](+) center dot [K(V-OH)(2)](-)}(n) (2), which retains the framework structure although the coordinated water molecules were evacuated. (c) 2005 Elsevier B.V. All rights reserved. (EN)

inorganic chemistry (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

Inorganica Chimica Acta (EN)

English

2006

<Go to ISI>://000234613800021

Elsevier (EN)



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