TY - JOUR
T1 - Aluminosilicate Relatives
T2 - Chalcogenoaluminogermanates Rb 3(AlQ2)3(GeQ2)7 (Q = S, Se)
AU - Rothenberger, Alexander
AU - Shafaei-Fallah, Maryam
AU - Kanatzidis, Mercouri G.
PY - 2010/11/1
Y1 - 2010/11/1
N2 - The new compounds Rb3(AlQ2)3(GeQ 2)7 [Q = S (1), Se (2)] feature the 3D anionic open framework [(AlQ2)3(GeQ2)7] 3- in which aluminum and germanium share tetrahedral coordination sites. Rb ions are located in channels formed by the connection of 8, 10, and 16 (Ge/Al)S4 tetrahedra. The isostructural sulfur and selenium derivatives crystallize in the space group P21/c. 1: a = 6.7537(3) Å, b = 37.7825(19) Å, c = 6.7515(3) Å, and β = 90.655(4)°. 2: a = 7.0580(5) Å, b = 39.419(2) Å, c = 7.0412(4) Å, β = 90.360(5)°, and Z = 2 at 190(2) K. The band gaps of the congruently melting chalcogenogermanates are 3.1 eV (1) and 2.4 eV (2).
AB - The new compounds Rb3(AlQ2)3(GeQ 2)7 [Q = S (1), Se (2)] feature the 3D anionic open framework [(AlQ2)3(GeQ2)7] 3- in which aluminum and germanium share tetrahedral coordination sites. Rb ions are located in channels formed by the connection of 8, 10, and 16 (Ge/Al)S4 tetrahedra. The isostructural sulfur and selenium derivatives crystallize in the space group P21/c. 1: a = 6.7537(3) Å, b = 37.7825(19) Å, c = 6.7515(3) Å, and β = 90.655(4)°. 2: a = 7.0580(5) Å, b = 39.419(2) Å, c = 7.0412(4) Å, β = 90.360(5)°, and Z = 2 at 190(2) K. The band gaps of the congruently melting chalcogenogermanates are 3.1 eV (1) and 2.4 eV (2).
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U2 - 10.1021/ic101627v
DO - 10.1021/ic101627v
M3 - Article
C2 - 20932019
AN - SCOPUS:78049288242
VL - 49
SP - 9749
EP - 9751
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 21
ER -