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High temperature synthesis and crystal structure of new representatives of the huntite family

✍ Scribed by P. A. Plachinda; E. L. Belokoneva

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
341 KB
Volume
43
Category
Article
ISSN
0232-1300

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✦ Synopsis

Single crystals of REE, Al borates, new and known representatives of huntite family are obtained by annealing of REEBO 3 on Al 2 O 3 surface at 1100Β°Π‘. Phase identification for REE=Pr, Eu, Tb, Tm, Ho, Yb has been carried out using unit cell parameter determination on single crystals. Crystal structures of C2/c (PrAl 3 (BO 3 ) 4 ) and C2 (EuAl 3 (BO 3 ) 4 ) -two polytypic modifications, previously determined for other REE's have been studied. Formation of one or another polytype in similar thermodynamic conditions is probably dependent on electronic structure of rare earth ion. Crystal field stabilization energy in crystal fields of different symmetry is a possible factor of polytype stability

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ChemInform Abstract: High Temperature Sy
ChemInform Abstract: High Temperature Synthesis and Crystal Structure of New Representatives of the Huntite Family.
✍ P. A. Plachinda; E. L. Belokoneva πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons βš– 17 KB πŸ‘ 1 views

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