TY - JOUR
T1 - Three new organically templated 1D, 2D, and 3D vanadates
T2 - Synthesis, crystal structures, and characterizations
AU - Xu, Yan
AU - Zhou, Guangpeng
AU - Zhu, Dunru
PY - 2008/1/21
Y1 - 2008/1/21
N2 - Three new vanadate compounds of the formulas (C2N 2H10)VO(OH)4 (I), (NH4) 3(C3N2H5)V4O 10 (II), and V(OH)3·0.97H2O (III) have been synthesized by a solvothermal method and characterized by IR spectroscopy, elemental analysis, and thermogravimetric analysis. The crystal structures of the above three vanadates have been established by single-crystal X-ray diffraction. Compound I crystallizes as tetragonal, space group PA/mmm, with a = 9.0465-(11) Å, c = 3.9897(10) Å, V = 326.51(10) Å3, and Z = 2. Compound II crystallizes as orthorhombic, space group Immm, with a = 3.6012(10) Å b = 11.312(4) Å C = 15.050(4) Å, V = 613.1(3) Å3, and Z = 2. Compound III crystallizes as cubic, space group Fd3m, with a = 10.4252(17) Å, V = 1133.1(3) Å3, and Z = 16. Structural analyses reveal a one-dimensional beeline-chained structure, which consists of VO6 octahedra in I. Compound II possesses a two-dimensional V-O-layered structure formed by VO 5 square pyramids; protonated imidazole and remaining NH 4+ cations are inserted between the layers. The three-dimensional open framework of III with the pyrochlore type consists of V12 and V4 secondary building units by using VO 6 octahedra as building units.
AB - Three new vanadate compounds of the formulas (C2N 2H10)VO(OH)4 (I), (NH4) 3(C3N2H5)V4O 10 (II), and V(OH)3·0.97H2O (III) have been synthesized by a solvothermal method and characterized by IR spectroscopy, elemental analysis, and thermogravimetric analysis. The crystal structures of the above three vanadates have been established by single-crystal X-ray diffraction. Compound I crystallizes as tetragonal, space group PA/mmm, with a = 9.0465-(11) Å, c = 3.9897(10) Å, V = 326.51(10) Å3, and Z = 2. Compound II crystallizes as orthorhombic, space group Immm, with a = 3.6012(10) Å b = 11.312(4) Å C = 15.050(4) Å, V = 613.1(3) Å3, and Z = 2. Compound III crystallizes as cubic, space group Fd3m, with a = 10.4252(17) Å, V = 1133.1(3) Å3, and Z = 16. Structural analyses reveal a one-dimensional beeline-chained structure, which consists of VO6 octahedra in I. Compound II possesses a two-dimensional V-O-layered structure formed by VO 5 square pyramids; protonated imidazole and remaining NH 4+ cations are inserted between the layers. The three-dimensional open framework of III with the pyrochlore type consists of V12 and V4 secondary building units by using VO 6 octahedra as building units.
UR - http://www.scopus.com/inward/record.url?scp=38949211433&partnerID=8YFLogxK
U2 - 10.1021/ic701725h
DO - 10.1021/ic701725h
M3 - 文章
AN - SCOPUS:38949211433
SN - 0020-1669
VL - 47
SP - 567
EP - 571
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 2
ER -