NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.50A [2011] >
IJC-A Vol.50A(01) [January 2011] >


Title: Three new inorganic-organic hybrid materials based on inorganic cluster, [(PO4)M12O36].nH2O (M = Mo, W)
Authors: Yousefi, Mohammad
Eshtiagh-Hosseini, Hossein
Mirzaei, Masoud
Salimi, Ali R.
Nikpour, Mohsen
Keywords: Polyoxometalates
Metalates
Hybrids
Inorganic-organic hybrids
Amino acids
L-Leucine
L-Proline
Methyl urea
Issue Date: Jan-2011
Publisher: NISCAIR-CSIR, India
Abstract: Three new inorganic-organic hybrid materials based on heteropolyoxometalates, [L-C6H14NO2]3[(PO4)Mo12O36].3H2O (1), [L-C5H10NO2]3[(PO4)W12O36].H2O (2), and [C2H7N2O]3[(PO4)W12O36].4H2O (3), where C6H14NO2, C5H10NO2, and C2H7N2O are protonated l-leucine, l-proline, and methyl urea, respectively, have been synthesized and structurally characterized by some physico-chemical methods. Elemental analyses, IR, Raman, mass, UV, and 1H NMR spectroscopies of the title hybrid materials indicate that there are van der Waals interactions between O atoms of the heteropolyoxometalates and water molecules, as well as the N and O atoms of the amino acids and methyl urea moieties. The molecular structures of synthesized hybrid materials contain discrete entities of l-leucinium, l-prolinium or methyluronium and water molecules that surround every [(PO4)M12O36]3- anion, over the extended crystalline network. The observed bands in Raman spectra of (2) and (3) demonstrate that the [(PO4)W12O36]3- anion retains its “Keggin structure”. At pH = 4 – 7, the characteristic bands of the Keggin anion [(PO4)M12O36]3−(M = Mo, W) appear at 210 and 260 nm in the UV spectra, respectively.
Page(s): 51-54
CC License:  CC Attribution- Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.50A(01) [January 2011]

Files in This Item:

File Description SizeFormat
IJCA 50A(1) 51-54.pdf553.97 kBAdobe PDFView/Open
 Current Page Visits: 801 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 583391 since 06-Feb-2009  Last updated on 05-Sep-2014Webmaster: nopr@niscair.res.in