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  4. (CsCl)2M(VO3)2 (M = Mn, Cu): Two new salt-inclusion meta-vanadates exhibiting channel structures with 5 and 14-membered-ring windows
 
conference paper

(CsCl)2M(VO3)2 (M = Mn, Cu): Two new salt-inclusion meta-vanadates exhibiting channel structures with 5 and 14-membered-ring windows

West, Jennings
•
Queen, Wendy  
•
Zarzyczny, Matt
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2006
Abstracts of Papers, 231st ACS National Meeting, Atlanta, GA, United States, March 26-30, 2006

Employing salt-inclusion chem., we have developed a new class of hybrid solids based on transition-metal-contg. silicate, phosphate, and arsenate systems which have resulted in a large no. of novel solids that exhibit fascinating nanostructures of magnetic, electronic and catalytic importance. In an expanded effort by substituting oxyanions with vanadates, we have isolated two new transition metal (II) meta-vanadate compds. using high-temp. flux methods in molten salt media. The title compds. (CsCl)2M(VO3)2 (M = Mn, Cu) crystallize in an orthorhombic space group Cmm2 (no. 35) and tetragonal space group P4122 resp. The X-ray single crystal structure reveals that the extended lattice of the Mn2+ compd. consists of a meta-vanadate chain propagating along the a axis; whereas, the Cu2+ phase exhibits two nonintersecting, orthogonal chains along the a and b axes. It is also revealed that in both lattices, the M2+ cations adopt an octahedral (MO2Cl4) coordination. However, the Mn2+ compd. exhibits the (100) ReO3-type octahedral slabs propagating along the ac plane, while Cu2+ consists of isolated octahedra. Furthermore, the parallel slabs in the former are interlinked through sharing corner oxygen atoms with the meta-vanadate chains along b. In the latter, however, the Cu2+ cations can be considered as linkers to bridge the orthogonal vanadate chains via sharing corner oxygen atoms of the polyhedra. Due to the versatility of the MO2Cl4 and the VO4 units, these two isomorphous compds. form two different channel structures that posses 5 & 14-memebered ring windows, resp. Given the structural flexibility and the demonstrated utilities of salt, we anticipate more vanadates having novel nanostructures to come. In this presentation, we will discuss the results of the detailed solid state synthesis, crystal growth, and correlation studies of structure and magnetic property anal.

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Type
conference paper
Author(s)
West, Jennings
Queen, Wendy  
Zarzyczny, Matt
VanDerveer, Donald G.
Hwu, Shiou-Jyh
Date Issued

2006

Publisher

American Chemical Society

Published in
Abstracts of Papers, 231st ACS National Meeting, Atlanta, GA, United States, March 26-30, 2006
Start page

INOR

End page

249

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LFIM  
Available on Infoscience
February 23, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/134790
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