TY - JOUR
T1 - Syntheses and structures of two new 3D open-framework germanates constructed from Ge9O18(OH)4 clusters
AU - Lin, Zhi En
AU - Zhang, Jie
AU - Zheng, Shou Tian
AU - Yang, Guo Yu
PY - 2004/9/20
Y1 - 2004/9/20
N2 - Two new open-framework germanates, [Cd2(C2N 2H8)3][Ge9O18(OH) 4] (1) and (C8N4H26)[Ge 9O18(OH)4] (2), have been hydrothermally synthesized and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the orthorhombic space group, Pbca, with a = 14.318(3), b = 13.106(3), c = 14.580(3) Å, V= 2736.0(9) Å3, Z = 4. The compound is the first organically templated cadmium germanate. The structure of 1 is constructed from two distinct motifs, a body-centered [Ge9O 18(OH)4] cluster and a cadmium complex [Cd 2(C2N2H8)3O6], which integrate to generate a 3D architecture with neutral framework. The structures of 2 is closely related to that of 1 and has identical Ge 9O18(OH)4 clusters. It crystallizes in the orthorhombic space group, Pbca, with a = 14.158(3), b = 13.213(3), c = 14.553(3) Å, V= 2722.5(9) Å3, Z = 4. The connectivity between the Ge9 clusters result in a 3D open-framework structure. The quadruply protonated N,N′-bis(3-aminopropyl)ethylene diamine molecules are located in the free voids and interact with the macroanionic inorganic framework by extensive hydrogen bonds.
AB - Two new open-framework germanates, [Cd2(C2N 2H8)3][Ge9O18(OH) 4] (1) and (C8N4H26)[Ge 9O18(OH)4] (2), have been hydrothermally synthesized and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the orthorhombic space group, Pbca, with a = 14.318(3), b = 13.106(3), c = 14.580(3) Å, V= 2736.0(9) Å3, Z = 4. The compound is the first organically templated cadmium germanate. The structure of 1 is constructed from two distinct motifs, a body-centered [Ge9O 18(OH)4] cluster and a cadmium complex [Cd 2(C2N2H8)3O6], which integrate to generate a 3D architecture with neutral framework. The structures of 2 is closely related to that of 1 and has identical Ge 9O18(OH)4 clusters. It crystallizes in the orthorhombic space group, Pbca, with a = 14.158(3), b = 13.213(3), c = 14.553(3) Å, V= 2722.5(9) Å3, Z = 4. The connectivity between the Ge9 clusters result in a 3D open-framework structure. The quadruply protonated N,N′-bis(3-aminopropyl)ethylene diamine molecules are located in the free voids and interact with the macroanionic inorganic framework by extensive hydrogen bonds.
KW - Cluster
KW - Crystal structure
KW - Germanate
KW - Hydrothermal synthesis
KW - Open framework
UR - http://www.scopus.com/inward/record.url?scp=4644319802&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2004.06.020
DO - 10.1016/j.micromeso.2004.06.020
M3 - Article
AN - SCOPUS:4644319802
SN - 1387-1811
VL - 74
SP - 205
EP - 211
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
IS - 1-3
ER -