Bariumstannat‐Pulver durch hydrothermale Synthese und durch Thermolyse von Bariumzinn(IV)‐glykolaten. Synthese und Struktur von [Ba(C2H6O2)4][Sn(C2H4O2)3] und [Ba(C2H6O2)2][Sn(C2H4O2)3]·CH3OH |
| |
| Authors: | Lothar Jger Volker Lorenz Thomas Müller Hans‐Peter Abicht Michael Rssel Helmar Grls |
| |
| Institution: | Lothar Jäger,Volker Lorenz,Thomas Müller,Hans‐Peter Abicht,Michael Rössel,Helmar Görls |
| |
| Abstract: | Barium Stannate Powders from Hydrothermal Synthesis and by Thermolysis of Barium‐Tin(IV)‐Glycolates. Synthesis and Structure of Ba(C2H6O2)4]Sn(C2H4O2)3] and Ba(C2H6O2)2]Sn(C2H4O2)3]·CH3OH The hydrothermal reaction as well as the microwave assisted hydrothermal reaction of SnO2·aq with barium hydroxide gives BaSn(OH)6] ( 1 ) as powder with bar like particles. Compound 1 of the same morphology can also be isolated from a hydrothermal reaction of Ba(C2H6O2)4]Sn(C2H4O2)3] ( 3 ). The reaction of SnO2·aq with Ba(OH)2·8H2O in ethylene glycol yields the glycolate Ba(C2H6O2)4]Sn(C2H4O2)3] ( 3 ), which forms in methanol the solvate Ba(C2H6O2)2]Sn(C2H4O2)3]·CH3OH ( 4 ). Compounds 1 , 3 and 4 react at different temperatures to BaSnO3 ( 2 ) consisting of powders with different morphologies; because of the grain size of the resulting powders compounds 3 and 4 are suitable as precursor for the fabrication of corresponding ceramics. |
| |
| Keywords: | Hydrothermal synthesis Tin(IV) glycolate Barium stannate Crystal structure |
|
