EP0051946A1
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EP
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Metal complexes
Assignee: Imperial Chemical Industries Ltd
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Filing: 1981-10-22
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Granted: —
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Expires: 2001-10-22
Abstract
Abstract Adducts of macrocyclic ligands, especially crown ethers, with transition metal complexes in which ammonia or a primary amine (optionally with one or more other ligands) is co-ordinated to the transition metal. The differing solubilities of the adducts provide a method of separating transition metal complexes.
Inventors
- 👤 Howard Matthew Colquhoun
- 👤 David Frank Lewis
- 👤 James Fraser Stoddart
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 23:22
CPC Classifications
C; C07; C07F; C07F1/00; C07F1/005; C07D; C07D323/00; C07F15/00; C07F15/0006; C07F15/0013; C07F15/0086; C07F15/02; C07F15/025; C07F15/04; C07F15/045; C07F15/06; C07F15/065; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/5045
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
167 words
A compound of the formula: wherein M is a transition metal, L is a ligand co-ordinated to said transition metal M selected from ammonia and primary amines, L l is a ligand other than ammonia or a primary amine, co-ordinated to transition metal M, L 2 is a macrocyclic ligand containing two or more electron donor atoms which are hydrogen bonded to acidic hydrogen atoms of ligand L or of ligands L and L l , X is an anion, when n is equal to or greater than 1, n is equal to 0, 1, 2 or 3, a is an integer from 1 up to the value required to satisfy the co-ordination requirements of metal M, b is an integer from O up to the value required to satisfy the co-ordination requirements of M other than provided by the ligand(s) L, x and y, which may be equal to one another, are positive integers, p is 1, 2 or 3, and z is equal to xn/p.
Claim 2
Dependent Claim
167 words
A compound of the formula: wherein M is a transition metal, L is a ligand co-ordinated to said transition metal M selected from ammonia and primary amines, L l is a ligand other than ammonia or a primary amine, co-ordinated to transition metal M, L 2 is a macrocyclic ligand containing two or more electron donor atoms which are hydrogen bonded to acidic hydrogen atoms of ligand L or of ligands L and L l , X is an anion, when n is equal to or greater than 1, n is equal to 0, 1, 2 or 3, a is an integer from 1 up to the value required to satisfy the co-ordination requirements of metal M, b is an integer from O up to the value required to satisfy the co-ordination requirements of M other than provided by the ligand(s) L, x and y, which may be equal to one another, are positive integers, p is 1, 2 or 3, and z is equal to xn/p.
Claim 3
Dependent Claim
34 words
A compound according to claim 1 wherein the transition metal is selected from iron (II and III), cobalt (II), nickel (II), copper (II), ruthenium (II), palladium (II), platinum (II) and iridium ( I ).
Claim 4
Dependent Claim
17 words
A compound according to claim 1 or claim 2 wherein the macrocyclic ligand is a crown ether.
Claim 5
Dependent Claim
17 words
A compound according to claim 3 wherein the crown ether is selected from 18-crown-6, dibenzo-18-crown-6 and dibenzo-30-crown-10.
Claim 6
Dependent Claim
29 words
A method for the preparation of a compound as claimed in claim 1 which comprises mixing solutions containing a transition metal complex and a macrocyclic ligand L 2 .
Claim 7
Dependent Claim
34 words
A method according to claim 5 wherein a solution containing at least two transition metal complexes is mixed with the macrocyclic ligand; the resulting adducts then being separated in accordance with their different solubilities.
Claim 8
Dependent Claim
17 words
A method according to claim 5 or claim 6 wherein the macrocyclic ligand is a crown ether.
References Cited (Backward Citations)
No citation records indexed.
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