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Crystal Structure and Thermal Decomposition Mechanism of [K(DNP)(H2O)0.5]

Crystal Structure and Thermal Decomposition Mechanism of [K(DNP)(H2O)0.5] The new coordination polymer, [K(DNP)(H2O)0.5]n(DNP=2, 4‐dinitrophenol) was prepared by the reaction of 2,4‐dinitrophenol with potassium hydroxide. The molecular structure was determined by X‐ray single‐crystal diffraction analysis, FT‐IR techniques, and elemental analysis. The crystal is monoclinic, space group C(2)/c with the empirical formula of C6N2O5.5K, Mr=231.21. The unit cell parameters are as follows: a=2.0789(3) nm, b= 1.2311(2) nm. c=0.7203(1) nm. β=109.611(15)°, V=1.7366(4) nm3, Z=4. 0, = 1.769 g/cm3, F(000)=936, μ (Mo Kα) =0.617 mm−1. The potassium ions coordinate with all the oxygen atoms of phenolic hydroxyl group and nitro‐group of different 2,4‐dinitrophenol (DNP) ligands with high coordination number, and form a god cross‐linked three‐dimensional net structure of which makes the complex with god stabilities. The thermal decomposition of [K(DNP)(H2O)0.5]n has only an intense exothermic process in the temperature range of 338–343 °C corresponding to a mass loss of 75.029s. The final decomposition residue is potassium isocyanide. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chinese Journal of Chemistry Wiley

Crystal Structure and Thermal Decomposition Mechanism of [K(DNP)(H2O)0.5]

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References (9)

Publisher
Wiley
Copyright
Copyright © 2004 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1001-604X
eISSN
1614-7065
DOI
10.1002/cjoc.20040220205
Publisher site
See Article on Publisher Site

Abstract

The new coordination polymer, [K(DNP)(H2O)0.5]n(DNP=2, 4‐dinitrophenol) was prepared by the reaction of 2,4‐dinitrophenol with potassium hydroxide. The molecular structure was determined by X‐ray single‐crystal diffraction analysis, FT‐IR techniques, and elemental analysis. The crystal is monoclinic, space group C(2)/c with the empirical formula of C6N2O5.5K, Mr=231.21. The unit cell parameters are as follows: a=2.0789(3) nm, b= 1.2311(2) nm. c=0.7203(1) nm. β=109.611(15)°, V=1.7366(4) nm3, Z=4. 0, = 1.769 g/cm3, F(000)=936, μ (Mo Kα) =0.617 mm−1. The potassium ions coordinate with all the oxygen atoms of phenolic hydroxyl group and nitro‐group of different 2,4‐dinitrophenol (DNP) ligands with high coordination number, and form a god cross‐linked three‐dimensional net structure of which makes the complex with god stabilities. The thermal decomposition of [K(DNP)(H2O)0.5]n has only an intense exothermic process in the temperature range of 338–343 °C corresponding to a mass loss of 75.029s. The final decomposition residue is potassium isocyanide.

Journal

Chinese Journal of ChemistryWiley

Published: Feb 1, 2004

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