TY - JOUR
T1 - Syntheses and structures of two new organically templated borogermanates
AU - Wang, Guo Ming
AU - Sun, Yan Qiong
AU - Yang, Guo Yu
PY - 2005/1
Y1 - 2005/1
N2 - Two new organically templated borogermanates, [H2DACH][Ge 3B2O9(OH)2] (1) (DACH = trans-1,4-diaminocyclohexane) and [H2BAPPZ] [Ge3B 2O9(OH)2]·1.5H2O (2) (BAPPZ = trans-1,4-bis(3-aminopropyl)piperazine), have been synthesized under mild hydrothermal conditions in the presence of DACH and BAPPZ acting as structure-directing agents, respectively. The two compounds both crystallized in an orthorhombic system, space group Pbcn (No. 60), with the following lattice constants: (1) a = 6.7947(2) Å, b = 11.6963(2) Å, c = 19.9102(3) Å, V = 1582.32-(6) Å3, Z = 4; (2) a = 6.8736(2) Å, b =11.7423(3) Å, c = 27.6476(2) Å, V = 2231.49(9) Å3, Z = 4. X-ray analysis reveals that the layered structure consists of three- and nine-membered rings formed by strictly alternating two corner-shared germanium tetrahedra and one pair of boron tetrahedra. The diprotonated organic amines exist between the adjacent borogermanate layers and interact with the inorganic framework by extensive hydrogen bonds.
AB - Two new organically templated borogermanates, [H2DACH][Ge 3B2O9(OH)2] (1) (DACH = trans-1,4-diaminocyclohexane) and [H2BAPPZ] [Ge3B 2O9(OH)2]·1.5H2O (2) (BAPPZ = trans-1,4-bis(3-aminopropyl)piperazine), have been synthesized under mild hydrothermal conditions in the presence of DACH and BAPPZ acting as structure-directing agents, respectively. The two compounds both crystallized in an orthorhombic system, space group Pbcn (No. 60), with the following lattice constants: (1) a = 6.7947(2) Å, b = 11.6963(2) Å, c = 19.9102(3) Å, V = 1582.32-(6) Å3, Z = 4; (2) a = 6.8736(2) Å, b =11.7423(3) Å, c = 27.6476(2) Å, V = 2231.49(9) Å3, Z = 4. X-ray analysis reveals that the layered structure consists of three- and nine-membered rings formed by strictly alternating two corner-shared germanium tetrahedra and one pair of boron tetrahedra. The diprotonated organic amines exist between the adjacent borogermanate layers and interact with the inorganic framework by extensive hydrogen bonds.
UR - http://www.scopus.com/inward/record.url?scp=12844279978&partnerID=8YFLogxK
U2 - 10.1021/cg049872t
DO - 10.1021/cg049872t
M3 - Article
AN - SCOPUS:12844279978
SN - 1528-7483
VL - 5
SP - 313
EP - 317
JO - Crystal Growth and Design
JF - Crystal Growth and Design
IS - 1
ER -