Kessler, Vadim
- Institutionen för molekylära vetenskaper, Sveriges lantbruksuniversitet
Sammanfattning
The alkoxides of molybdenum and other heavy transition elements such as Ta or Nb were found to be unreactive towards each other. The bimetallic derivatives could be obtained either via partial hydrolysis that gave Mo2Ta4O8(OMe)(16) (I) or via partial thermolysis that provided access to Mo4Ta2O8((OPr)-Pr-i)(1)4 (II), Mo3Ta2O8((OPr)-Pr-i)(10) (III), Mo4Ta4O16((OPr)-Pr-i)(12) (IV), Mo4Nb2O8((OPr)-Pr-i)(14) (V) and Mo4W2- xMo(x)O(10)((OPr)-Pr-i)(12) (VI). I-VI can be isolated only from hydrocarbon media as the presence of alcohols leads to precipitation of insoluble homometallic derivatives of molybdenum. The cathodic reduction of MoO(OR)(4) (R = Me, Et) in the presence of LiCl and M(OR)(5) (M = Nb, Ta) leads only to formation of LiMo2O2(OMe)(7)(MeOH) (VII) or LiMo2O2(OEt)(7) (VIII) respectively.
Nyckelord
precursor chemistry; heterometallic alkoxides; molybdenum alkoxides; tantalum alkoxides; niobium alkoxides; tungsten alkoxides
Publicerad i
Journal of Sol-Gel Science and Technology
2000, volym: 19, nummer: 1-3, sidor: 725-728
Utgivare: KLUWER ACADEMIC PUBL
SLU författare
UKÄ forskningsämne
Oorganisk kemi
Annan materialteknik
Publikationens identifierare
- DOI: https://doi.org/10.1023/A:1008783327078
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/50556