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:
Dec. 15, 1992
Filed:
Jul. 05, 1990
Applicant:
Inventors:
Ronald Snaith, Cambridge, GB;
Dominic S Wright, Cambridge, GB;
Alan T Brooker, Cambridge, GB;
Simon R Drake, Cambridge, GB;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07D / ;
U.S. Cl.
CPC ...
534 16 ; 556-1 ; 556 42 ; 556 45 ; 556 51 ; 556 57 ; 556110 ; 556118 ; 556136 ; 556138 ; 534 15 ; 2606 / ; 2606 / ;
Abstract
Novel metallo-organic complexes of the formula (M.sub.x X.sub.z. nL)y where M is an alkaline earth metal, a transition metal(at. Nos. 21-30, 39-48 and 72-80 inclusive) or a rare earth metal (at. Nos. 57-71 inclusive), X is an anion e.g. Cl.sup.-, Br.sup.-, NO.sub.3 -, NCS.sup.- etc. and L is a Lewis base, are prepared by reacting a source of the metal M under anhydrous conditions with an anhydrous ammonium salt of the anion X in the presence of the Lewis base, and cooling the reaction mixture to precipitate the complex.