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:
Aug. 01, 2000
Filed:
Jun. 10, 1999
Applicant:
Inventors:
John Anthony Norman, Encinitas, CA (US);
Yoshihide Senzaki, Carlsbad, CA (US);
David Allen Roberts, Escondido, CA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C23C / ;
U.S. Cl.
CPC ...
556 12 ; 556 21 ; 556113 ; 556117 ; 4272481 ;
Abstract
In a process for the synthesis of a first metal-ligand complex, M.sup.+n (L.sup.-).sub.n, where n.gtoreq.1, from a metal compound precursor and a ligand precursor, where the metal of the metal compound precursor may during the synthesis change to a valence in excess of n; the improvement, to suppress formation of a second metal-ligand complex of the metal with a valence in excess of n, of adding the elemental form of the metal to the synthesis of the first metal-ligand complex.