TY - JOUR
T1 - Syntheses, Structures, and Properties of Non-Centrosymmetric Quaternary Tellurates Bi MTeO6 (M = Al, Ga)
AU - Ding, Fenghua
AU - Nisbet, Matthew L.
AU - Yu, Hongwei
AU - Zhang, Weiguo
AU - Chai, Liyuan
AU - Halasyamani, P. Shiv
AU - Poeppelmeier, Kenneth R.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Single crystals of two new metal tellurates BiMTeO6 (M = Al, Ga) with a honeycomb layered structure were obtained by the molten flux method and characterized. The BiMTeO6 compounds both crystallize into a non-centrosymmetric trigonal space group of P312 (no. 149) with cell parameters of a = 5.0667(8) Å, c = 4.9920(16) Å and a = 5.107(3) Å, c = 4.932(6) Å, respectively. The non-centrosymmetry of BiAlTeO6 and BiGaTeO6 originates from the packing order of the octahedra. In these two structures, TeO6 octahedra and MO6 octahedra share edges and form a honeycomb open-framework with [TeMO6]∞ layers. The layers of [MTeO6]∞ and [BiO6]∞ alternate and are connected along the c-axis by corner-sharing oxygen atoms to form the three-dimensional framework. The chiral compound BiGaTeO6 exhibits a powder second harmonic generation (SHG) response of ∼0.2 times that of potassium dihydrogen phosphate (KDP) and an absorption edge of 355 nm.
AB - Single crystals of two new metal tellurates BiMTeO6 (M = Al, Ga) with a honeycomb layered structure were obtained by the molten flux method and characterized. The BiMTeO6 compounds both crystallize into a non-centrosymmetric trigonal space group of P312 (no. 149) with cell parameters of a = 5.0667(8) Å, c = 4.9920(16) Å and a = 5.107(3) Å, c = 4.932(6) Å, respectively. The non-centrosymmetry of BiAlTeO6 and BiGaTeO6 originates from the packing order of the octahedra. In these two structures, TeO6 octahedra and MO6 octahedra share edges and form a honeycomb open-framework with [TeMO6]∞ layers. The layers of [MTeO6]∞ and [BiO6]∞ alternate and are connected along the c-axis by corner-sharing oxygen atoms to form the three-dimensional framework. The chiral compound BiGaTeO6 exhibits a powder second harmonic generation (SHG) response of ∼0.2 times that of potassium dihydrogen phosphate (KDP) and an absorption edge of 355 nm.
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U2 - 10.1021/acs.inorgchem.8b01087
DO - 10.1021/acs.inorgchem.8b01087
M3 - Article
C2 - 29906117
AN - SCOPUS:85049395875
VL - 57
SP - 7950
EP - 7956
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 13
ER -