Aluminosilicate relatives: Chalcogenoaluminogermanates Rb(3)(AlQ(2))(3)(GeQ(2))(7) (Q = S, Se).
Aluminosilicate relatives: Chalcogenoaluminogermanates Rb(3)(AlQ(2))(3)(GeQ(2))(7) (Q = S, Se).
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DOI：
10.1021/ic101627v
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发表时间：
2010-11
影响因子：
4.6
通讯作者：
A. Rothenberger;Maryam Shafaei-Fallah;M. Kanatzidis
中科院分区：
文献类型：
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作者：
A. Rothenberger;Maryam Shafaei-Fallah;M. Kanatzidis
新化合物Rb（3）（AlQ（2））（3）（GeQ（2））（7）[Q = S（1），Se（2）]具有三维阴离子开放骨架[（AlQ（2））（3）（GeQ（2））（7）]（3-），其中铝和锗共享四面体配位。Rb离子位于由8、10和16（Ge/Al）S（4）四面体连接形成的通道中。同结构的硫和硒衍生物在空间群P2（1）/c中结晶。1：a = 6.7537（3）°，B = 37.7825（19）°，c = 6.7515（3）°，β = 90.655（4）°。2：190（2）K时，a = 7.0580（5）°，B = 39.419（2）°，c = 7.0412（4）°，β = 90.360（5）°，Z = 2。同成分熔融硫属锗酸盐的带隙为3.1 eV（1）和2.4 eV（2）。
The new compounds Rb(3)(AlQ(2))(3)(GeQ(2))(7) [Q = S (1), Se (2)] feature the 3D anionic open framework [(AlQ(2))(3)(GeQ(2))(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)S(4) tetrahedra. The isostructural sulfur and selenium derivatives crystallize in the space group P2(1)/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).