Metal complex containing one or more silsesquioxane ligands
US6441210B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Sep 4, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Metal complex containing one or more silsesquioxane ligands, having the formulaZy(MAxBq)b  (I),wherein Z is a silsesquioxane according to the formulaR7−lSi7O12YD1+l  (II),M is a metal from groups 3-6 of the Periodic System of the Elements and the lanthanides,A is a monoanionic ligand bound to the metal,B is a &pgr;-bound ligand,y represents the number of silsesquioxane ligands and is 1-10,b represents the number of metal groups and is 1-20,q is 0,1 or 2,x is the number of substituents A bound to the metal; the value of x depends on the metal used and is equal to the valency of the metal minus 1, 2, 3 or 4,R is a substituent bound to Si,Y is an atom from group 13 or 14 of the Periodic System of the Elements,D is a group, directly bound to Y or Si with one atom from group 15 or 16 of the Periodic System of the Elements and1 determines the amount of substituents R and atoms D and is equal to 0, 1, 2 or 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.