The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 1992
Filed:
Apr. 22, 1991
Mark A Greaney, Upper Black Eddy, PA (US);
Catherine L Coyle, Mendham, NJ (US);
Edward I Stiefel, Bridgewater, NJ (US);
Exxon Research and Engineering Company, Florham Park, NJ (US);
Abstract
There is provided an improved method for preparing compounds of the formula Mo.sub.4 S.sub.4 L.sub.6 comprising: heating a solution of a compound having the formula MoL.sub.4, wherein L is a 1,1-dithioacid ligand, at a temperature and for a time sufficient to form the Mo.sub.4 S.sub.4 L.sub.6 compound. Preferably, the MoL.sub.4 compound is dissolved in an organic solvent and the solution is heated at temperatures above 25.degree. C., up to the boiling point of the solvent and, more preferably, at temperatures in the range of from about 50.degree. C. to about 250.degree. C.