Synthesis, X-ray structure and thermal decomposition of lanthanum [dioxoisopropoxomolybdate] [La2Mo4O4(μ4-O)4(μ-OPri)8(Opri)6]
| Autor: | Alexandr I. Yanovsky, Nataliya Ya. Turova, A. P. Pisarevsky, Yuri T. Struchkov, Vadim G. Kessler, Andrei N. Panov |
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| Rok vydání: | 1996 |
| Předmět: |
Thermal decomposition
Inorganic chemistry chemistry.chemical_element Inorganic Chemistry Hexane Metal chemistry.chemical_compound Bipyramid Tetragonal crystal system Crystallography chemistry Molybdenum visual_art Materials Chemistry visual_art.visual_art_medium Lanthanum Molecule Physical and Theoretical Chemistry |
| Zdroj: | Polyhedron. 15:335-338 |
| ISSN: | 0277-5387 |
| DOI: | 10.1016/0277-5387(95)00156-m |
| Popis: | The reaction of lanthanum isopropoxide with the isopropoxide of molybdenum(VI), MoO(OPr i ) 4 , in 1:2 molar ratio in hexane, leads to the formation of the mixed-metal hexanuclear complex La 2 Mo 4 O 4 ( μ 4 -O) 4 ( μ -OPr i ) 8 (OPr i ) 6 ( 1 ), formally derived from the dioxomolybdenum species MoO 2 (OPr i ) 2 . The molecule of 1 contains an unusual tetragonal bipyramidal La 2 Mo 4 metal core supported by four tetradentate oxobridging ligands binding two neighbouring molybdenum and both lanthanum atoms each. Complex 1 readily decomposes either in solution in iso-propanol or on heating in vacuo to 90°C. The mechanism of the latter process is discussed. |
| Databáze: | OpenAIRE |
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