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The crystal structure of α‐SrGaBO 4
Author(s) -
Yang Z.,
Chen X. L.,
Liang J. K.,
He M.,
Chen J. R.
Publication year - 2004
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.200310235
Subject(s) - orthorhombic crystal system , crystallography , crystal structure , tetrahedron , chemistry , oxygen atom , strontium , powder diffraction , lattice (music) , atom (system on chip) , ring (chemistry) , molecule , physics , organic chemistry , computer science , acoustics , embedded system
Abstract A new compound α‐SrGaBO 4 has been synthesized by solid state reaction at high temperatures, and its structure has been solved by direct methods from powder X‐ray diffraction. α‐SrGaBO 4 has an orthorhombic system, Pccn space group, with lattice parameters a = 15.3154(7) Å, b = 8.9186(4) Å, c = 5.8130(3) Å, and Z = 8. The structure consists of infinite chains run parallel to the c axis and built up of GaO 4 tetrahedral and BO 3 triangles. The basic unit of these chains is a six ‐ membered Ga 2 BO 8 ring formed by two GaO 4 tetrahedra and one BO 3 triangles. The Sr atom is bonded to eight oxygen atoms. The strontium atoms serve to hold the chains together through co‐ordination with oxygen atoms. DTA curve of noncrystalline glassy SrGaBO 4 was discussed. The XRD results show no phase transition occurs between ‐173 °C and 127 °C. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)