TY - JOUR
T1 - The First Vanadium Gallophosphates
T2 - Hydrothermal Synthesis and Structure of Rb [(VO)(H2O)Ga(PO4)2] and Cs[(VO)(H2O)Ga(PO4)2]
AU - Hammond, Robert P.
AU - Zubieta, Jon A.
N1 - Funding Information:
The authors acknowledge Dr. Peter Zavalij of Binghamton University for the X-ray powder di!raction study. All work at Syracuse University was funded by NSF Grant CHE 9617232.
PY - 1999/5
Y1 - 1999/5
N2 - The first examples of vanadium gallophosphates, Rb[(VO)(H2O)Ga(PO4)2] and Cs[(VO)(H2O)Ga(PO4)2] have been synthesized using hydrothermal methods, fromXVO3(X=Rb, Cs), Ga2O3, H3PO4, H2PO3F, and an organic species. The phases are isostructural and have a three-dimensional anionic vanadium gallophosphate framework assembled from corner sharing PO4and GaO4tetrahedra and VO5(H2O) octahedra. The PO4and GaO4tetrahedra form chains which are crosslinked by the vanadium octahedra. Since the GaO4tetrahedra and VO5(H2O) octahedra each share corners exclusively with PO4tetrahedra, no Ga-O-V bonding is present in the framework. The anionic charge of the framework is compensated by the alkali cations, which lie in tunnels running along theyaxis. Single-crystal data for Rb[(VO)(H2O)Ga(PO4)2]: monoclinic, space groupP21/c(No. 14) witha=7.928(2) Å,b=8.049(2) Å,c=13.983(3) Å,β=104.274(5)°,V=864.8(4) Å3,Z=4,Dcalc=3.303 g cm-3; for Cs[(VO)(H2O)Ga(PO4)2]: monoclinic, space groupP21/c(No. 14) witha=8.0423(5) Å,b= 8.0661(5) Å,c=14.1284(8) Å,β=105.094(1)°,V=884.89(9) Å3,Z=4,Dcalc=3.584 g/cm-3.
AB - The first examples of vanadium gallophosphates, Rb[(VO)(H2O)Ga(PO4)2] and Cs[(VO)(H2O)Ga(PO4)2] have been synthesized using hydrothermal methods, fromXVO3(X=Rb, Cs), Ga2O3, H3PO4, H2PO3F, and an organic species. The phases are isostructural and have a three-dimensional anionic vanadium gallophosphate framework assembled from corner sharing PO4and GaO4tetrahedra and VO5(H2O) octahedra. The PO4and GaO4tetrahedra form chains which are crosslinked by the vanadium octahedra. Since the GaO4tetrahedra and VO5(H2O) octahedra each share corners exclusively with PO4tetrahedra, no Ga-O-V bonding is present in the framework. The anionic charge of the framework is compensated by the alkali cations, which lie in tunnels running along theyaxis. Single-crystal data for Rb[(VO)(H2O)Ga(PO4)2]: monoclinic, space groupP21/c(No. 14) witha=7.928(2) Å,b=8.049(2) Å,c=13.983(3) Å,β=104.274(5)°,V=864.8(4) Å3,Z=4,Dcalc=3.303 g cm-3; for Cs[(VO)(H2O)Ga(PO4)2]: monoclinic, space groupP21/c(No. 14) witha=8.0423(5) Å,b= 8.0661(5) Å,c=14.1284(8) Å,β=105.094(1)°,V=884.89(9) Å3,Z=4,Dcalc=3.584 g/cm-3.
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U2 - 10.1006/jssc.1999.8203
DO - 10.1006/jssc.1999.8203
M3 - Article
AN - SCOPUS:0000438206
SN - 0022-4596
VL - 144
SP - 442
EP - 448
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 2
ER -