DSpace Repository

Hydrothermal Synthesis and Structure of a Mixed Valent Heteropoly-oxometallate Keggin Salt: [PMo4.27W7.73O6−40] [H3N(CH2)6NH2+3]3

Show simple item record

dc.contributor.author Gabriel, J C P
dc.contributor.author Nagarajan, R
dc.contributor.author Natarajan, S
dc.contributor.author Cheetham, A K
dc.contributor.author Rao, C N R
dc.date.accessioned 2012-12-05T08:43:58Z
dc.date.available 2012-12-05T08:43:58Z
dc.date.issued 1997-03
dc.identifier 0022-4596 en_US
dc.identifier.citation Journal Of Solid State Chemistry 129(2), 257-262 (1997) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/1208
dc.description Restricted Access en_US
dc.description.abstract The polyoxometallate Keggin (αtype) [PMo4.27W7.73O6−40] [H3N(CH2)6NH2+3]3, involving molybdenum and tungsten present in both V and VI oxidation states, has been synthesized under hydrothermal conditions and its structure determined by single crystal X-ray analysis. Black platelet crystals are formed in the monoclinic system, space groupC2/m(No. 12),a=10.336(9),b=20.097(5),c=13.276(6) Å,β=106.41(7)°,Vcell=2645(3) Å3,Z=8,dcalc=3.555 Mg m−3(CuKαradiation, 2θmax=144°,R(F)=6.56 for 1729 reflections). Due to its location at the origin (2/msite), the anion is found to be disordered, its four independent metal sites occupied with molybdenum and tungsten atoms; a significant preferred localization of the molybdenum on two sites is also reported. The structure has a lamellar organization formed from alternating organic–inorganic planes with their normal parallel toc. A study by ESR has proven the presence of paramagnetic Mo/W(V) in the compound with the observation of a strong signal (g=1.983). en_US
dc.description.uri http://dx.doi.org/10.1006/jssc.1996.7230 en_US
dc.language.iso en en_US
dc.publisher Academic Press Inc en_US
dc.rights © 1997 Academic Press en_US
dc.subject Molybdenum en_US
dc.subject Tungstates en_US
dc.subject Chemistry en_US
dc.subject Blues en_US
dc.title Hydrothermal Synthesis and Structure of a Mixed Valent Heteropoly-oxometallate Keggin Salt: [PMo4.27W7.73O6−40] [H3N(CH2)6NH2+3]3 en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account