Metal complexes with a high coordination number

US5444030A · kind A · utility

Assignee

• Rutgerswerke Aktiengesellschaft · DE

Inventors

• Axel Bottcher · Wesel, DE
• Manfred Döring · Bad Mergentheim, DE
• Jurgen Zehrfeld · Voerde, DE

Key dates

• Filing date: Sep 9, 1993
• Grant date: Aug 22, 1995
• Expiry date: Sep 9, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G59/70
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of complex salts with additional coordinated ligands comprising reacting with through mixing at 20.degree. to 200.degree. C. a complex-forming metal salt of a metal of the second and third main groups of the Periodic Table and the subgroups thereof with a stoichiometric amount of at least one member of the group consisting of a chelating ligand and a Lewis base in the absence of a solvent according to the equation: EQU M.sub.m.sup.a+ (SR.sup.b-)n+xL.multidot.cH+yB.sup.- .fwdarw.m[M.sup.a+ (SR.sup.b-)(n-o)L.sub.x B.sub.y ]+o.multidot.SR.sup.b- +c.multidot.H.sup.+I wherein M is a metal ion, SR is an acid radical of an organic or inorganic acid, B is a Lewis base, and L is a chelating ligand, m.multidot.a=b.multidot.(n-o)+c.multidot.x, wherein a=an integer of 1-8, b=an integer of 1-3, c=an integer of 0-4, m=an integer of 1-3, n=an integer of 1-8, o=an integer of 0-8, x=an integer of 0-4, y=and integer of 1-16, wherein (n-o)+x+y.ltoreq.16 and the complex salts formed thereby useful as latent curing catalysts.