TY - JOUR
T1 - Synthesis and structure of KBGe2O6
T2 - The first chiral zeotype borogermanate with 7-ring channels
AU - Lin, Zhi En
AU - Zhang, Jie
AU - Yang, Guo Yu
PY - 2003/3/24
Y1 - 2003/3/24
N2 - Among the known zeolite topologies, odd rings are rare with the exception of 5-ring. We report here the hydrothermal synthesis and structural characterization of a novel compound, KBGe2O6, the first germanate-based zeotype material with 7-ring channels. It crystallized in the orthorhombic system, space group P212121 (No. 19), a = 4.8037(3) Å, b = 10.2063(7) Å, c = 10.7402(10) Å, V = 526.57(5) Å3, Z = 3. The framework topology of this compound is previous unknown with the vertex symbol 4·6·4·6· 6·72(vertex1), 4·6·4·6·6·72(vertex2), and 6·6·6·6·62· 72(vertex3). It is worth noting that the structure of the compound is chiral containing helices condensed from GeO4 tetrahedra, which arrange around 21 screw axes. Furthermore, the K+ ions within the channels are mobile and can be partially ion-exchanged with Na+ at room temperature.
AB - Among the known zeolite topologies, odd rings are rare with the exception of 5-ring. We report here the hydrothermal synthesis and structural characterization of a novel compound, KBGe2O6, the first germanate-based zeotype material with 7-ring channels. It crystallized in the orthorhombic system, space group P212121 (No. 19), a = 4.8037(3) Å, b = 10.2063(7) Å, c = 10.7402(10) Å, V = 526.57(5) Å3, Z = 3. The framework topology of this compound is previous unknown with the vertex symbol 4·6·4·6· 6·72(vertex1), 4·6·4·6·6·72(vertex2), and 6·6·6·6·62· 72(vertex3). It is worth noting that the structure of the compound is chiral containing helices condensed from GeO4 tetrahedra, which arrange around 21 screw axes. Furthermore, the K+ ions within the channels are mobile and can be partially ion-exchanged with Na+ at room temperature.
UR - http://www.scopus.com/inward/record.url?scp=0037464312&partnerID=8YFLogxK
U2 - 10.1021/ic020511h
DO - 10.1021/ic020511h
M3 - Article
AN - SCOPUS:0037464312
SN - 0020-1669
VL - 42
SP - 1797
EP - 1799
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 6
ER -