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Growth of ytterbium tartrate trihydrate crystals in silica and agar‐agar gels and their characterization
Author(s) -
Want B.,
Ahmad F.,
Kotru P. N.
Publication year - 2006
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200610743
Subject(s) - tartrate , thermogravimetric analysis , agar , scanning electron microscope , crystallite , materials science , ytterbium , stoichiometry , nuclear chemistry , silica gel , analytical chemistry (journal) , crystallography , chemistry , inorganic chemistry , chromatography , organic chemistry , bacteria , composite material , doping , biology , genetics , optoelectronics
Single crystals of ytterbium tartrate trihydrate have been grown by gel method using silica and agar‐agar gels as media of growth. The medium of growth influences the morphology of grown crystals, silica gel yielding single and polycrystalline in the form of spherulites whereas agar‐agar gel leading to growth of single and twinned crystals. Materials grown as single crystals have been characterized by using optical and scanning electron microscopy (SEM), EDAX, XRD, FT‐IR, CHN and thermogravimetric techniques. The stoichiometry of the grown single crystals is suggested to be Yb(C 4 H 4 O 6 ) (C 4 H 5 O 6 ).3H 2 O. The FT‐IR spectrum shows the presence of singly as well as doubly ionized tartrate ligands. Results of thermal analysis indicate that the material is thermally stable up to a temperature of 200 °C. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)