Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/939
Title: Characterization and structural study of lanthanum citrate trihydrate [La(C6H5O7)(H2O)2].H2O
Authors: VANHOYLAND, Geert 
PAGNAER, John 
D'HAEN, Jan 
MULLENS, Steven 
MULLENS, Jules 
Issue Date: 2005
Publisher: Elsevier
Source: Journal of Solid State Chemistry, 178(1). p. 166-171
Abstract: [La(C6H5O7)(H2O)2]·H2O was synthesized as precursor material for an aqueous solution–gel route to La-containing multimetal oxides. The compound was characterized by means of FTIR, TGA and pycnometry. The crystallographic structure was solved from powder diffraction data. The symmetry is monoclinic [a=17.097(3) Å, b=9.765(2) Å, c=6.3166(8) Å and β=90.42(1)°, Zexp=3.96] with space group P21/n (14). Direct methods were applied and the model was subsequently least-squares refined (RB=5.1% and RwP=12.0%). La3+ is nine-fold coordinated, the LaO9 forming a mono-capped square antiprism. The basic unit is a binuclear entity of two LaO9 polyhedra having one edge in common. These units are connected along the c-axis through citrate molecules. The carboxylate groups of the citrate are coordinated to La3+ in monodentate, bidentate and bridging way. Also the alkoxide group, which carries the proton, is coordinated to La3+. Two water molecules complete the coordination sphere, while the third one can be found inbetween the La3+-citrate network.
Keywords: Metal Oxide nanomaterials;Physical Analysis and Characterisation
Document URI: http://hdl.handle.net/1942/939
ISSN: 0022-4596
e-ISSN: 1095-726X
DOI: 10.1016/j.jssc.2004.10.042
ISI #: 000227042200025
Category: A1
Type: Journal Contribution
Validations: ecoom 2006
Appears in Collections:Research publications

Show full item record

SCOPUSTM   
Citations

34
checked on Sep 3, 2020

WEB OF SCIENCETM
Citations

38
checked on May 22, 2022

Page view(s)

46
checked on May 27, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.