TY - JOUR
T1 - Synthesis, crystal structure, spectroscopic and magnetic properties of strontium oxovanadium(IV) tartrate
T2 - Molecular precursor for SrVO3
AU - Garcia-Jaca, Javier
AU - Pizarro, Jose L.
AU - Larramendi, Jose I.R.
AU - Lezama, Luis
AU - Arriortua, Maria I.
AU - Rojo, Teófilo
PY - 1995
Y1 - 1995
N2 - A new alkaline-earth-metal oxovanadium(IV) tartrate dimer with formula [Sr(VO)((±)-C4H2O6)(H2O) 3]2 has been synthesized and characterized. The crystal structure consists of a three-dimensional (3D) arrangement of [(VO)((±)-C4H2O6)]2 4- dimeric anions, strontium cations and water molecules. There are several bonds between the oxygen atoms of the dimeric anions and the strontium cations, including a bond with the oxygen of the vanadyl group. The electron paramagnetic resonance (EPR) measurements show the dimeric nature of this complex. Thermal treatments of the compound, at low temperatures, yield different mixed oxides depending on the atmosphere employed. In air at 500 °C only the α-pyrovanadate is obtained while a thermal treatment in a hydrogen atmosphere at 900 °C is needed in order to obtain the SrVO 3 oxide. The magnetic susceptibility of the SrVO3 phase revealed its metallic character.
AB - A new alkaline-earth-metal oxovanadium(IV) tartrate dimer with formula [Sr(VO)((±)-C4H2O6)(H2O) 3]2 has been synthesized and characterized. The crystal structure consists of a three-dimensional (3D) arrangement of [(VO)((±)-C4H2O6)]2 4- dimeric anions, strontium cations and water molecules. There are several bonds between the oxygen atoms of the dimeric anions and the strontium cations, including a bond with the oxygen of the vanadyl group. The electron paramagnetic resonance (EPR) measurements show the dimeric nature of this complex. Thermal treatments of the compound, at low temperatures, yield different mixed oxides depending on the atmosphere employed. In air at 500 °C only the α-pyrovanadate is obtained while a thermal treatment in a hydrogen atmosphere at 900 °C is needed in order to obtain the SrVO 3 oxide. The magnetic susceptibility of the SrVO3 phase revealed its metallic character.
UR - https://www.scopus.com/pages/publications/4243121032
U2 - 10.1039/JM9950500277
DO - 10.1039/JM9950500277
M3 - Article
AN - SCOPUS:4243121032
SN - 0959-9428
VL - 5
SP - 277
EP - 283
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
IS - 2
ER -