Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O

Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O

Reaction of the three vacant complex of a-[P2W15O56]12- and a-[As2W15O56]12- with divalent cation of VO2+ in 1:1 mole ratio yields a previously unknown sandwich-type Wells-Dawson complex; Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O (represented as Na2(VO)2P4W30) and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O (rep...

Full description

Bibliographic Details
Main Authors: Mohammad Hakimi, Mohammad Reza Mohammadi, Salma Behboupour
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:E-Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2012/894261
id doaj-a093a7ab3cc24a718d044f3678335cb9
record_format Article
spelling doaj-a093a7ab3cc24a718d044f3678335cb92020-11-24T22:43:45ZengHindawi LimitedE-Journal of Chemistry0973-49452090-98102012-01-01942185219010.1155/2012/894261Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2OMohammad Hakimi0Mohammad Reza Mohammadi1Salma Behboupour2Chemistry Department, Payame Noor University, 19395-4697 Tehran, IranChemistry Department, Payame Noor University, 19395-4697 Tehran, IranChemistry Department, Payame Noor University, 19395-4697 Tehran, IranReaction of the three vacant complex of a-[P2W15O56]12- and a-[As2W15O56]12- with divalent cation of VO2+ in 1:1 mole ratio yields a previously unknown sandwich-type Wells-Dawson complex; Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O (represented as Na2(VO)2P4W30) and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O (represented as Na2(VO)2As4W30). These complexes contain anions in which two divalent VO2+ cations with two Na+ ions are symmetrically sandwiched between two α-[P2W15O56]12- or α-[As2W15O56]12- groups leading to a “lacunary” sandwich complex. The anion complexes are isolated as sodium salts and characterized by elemental analysis, TGA, IR, 31P NMR and UV-Vis spectroscopy.http://dx.doi.org/10.1155/2012/894261
collection DOAJ
language English
format Article
sources DOAJ
author Mohammad Hakimi
Mohammad Reza Mohammadi
Salma Behboupour
spellingShingle Mohammad Hakimi
Mohammad Reza Mohammadi
Salma Behboupour
Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O
E-Journal of Chemistry
author_facet Mohammad Hakimi
Mohammad Reza Mohammadi
Salma Behboupour
author_sort Mohammad Hakimi
title Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O
title_short Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O
title_full Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O
title_fullStr Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O
title_full_unstemmed Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O
title_sort synthesis and spectroscopic characterization of two new dawson sandwich complexes: na18[(naoh)2(vo)2(p2w15o56)2].40h2o and na18[(naoh)2(vo)2(as2w15o56)2].27h2o
publisher Hindawi Limited
series E-Journal of Chemistry
issn 0973-4945
2090-9810
publishDate 2012-01-01
description Reaction of the three vacant complex of a-[P2W15O56]12- and a-[As2W15O56]12- with divalent cation of VO2+ in 1:1 mole ratio yields a previously unknown sandwich-type Wells-Dawson complex; Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O (represented as Na2(VO)2P4W30) and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O (represented as Na2(VO)2As4W30). These complexes contain anions in which two divalent VO2+ cations with two Na+ ions are symmetrically sandwiched between two α-[P2W15O56]12- or α-[As2W15O56]12- groups leading to a “lacunary” sandwich complex. The anion complexes are isolated as sodium salts and characterized by elemental analysis, TGA, IR, 31P NMR and UV-Vis spectroscopy.
url http://dx.doi.org/10.1155/2012/894261
work_keys_str_mv AT mohammadhakimi synthesisandspectroscopiccharacterizationoftwonewdawsonsandwichcomplexesna18naoh2vo2p2w15o56240h2oandna18naoh2vo2as2w15o56227h2o
AT mohammadrezamohammadi synthesisandspectroscopiccharacterizationoftwonewdawsonsandwichcomplexesna18naoh2vo2p2w15o56240h2oandna18naoh2vo2as2w15o56227h2o
AT salmabehboupour synthesisandspectroscopiccharacterizationoftwonewdawsonsandwichcomplexesna18naoh2vo2p2w15o56240h2oandna18naoh2vo2as2w15o56227h2o
_version_ 1725694725136056320

Similar Items