High-temperature metal-organic acceptor magnets

A stable magnet having a Tc greater than about 250K comprising metal ions from a metal-containing precursor and molecules of an organic compound, wherein said metal ion is provided at a valency lower than its maximum valency state, and

• said molecules are selected from a group of organic compounds having a reduction potential suitable to accept at least one electron from said metal ion and an at least one functional group that is able to coordinate with said metal ion.

A method of preparing a stable magnet having a high Tc, said method comprising reacting metal ions of a metal-containing precursor and molecules of an organic compound in a metal to organic ratio,

• said metal to organic ratio being at least about 1 ion to 1 organic molecule,
• said metal ions being in a valency state lower than their maximum valency state, and
• said molecules selected from a group of organic compounds having a reduction potential suitable to accept at least one electron from said metal ion and functional groups that are able to coordinate with said metal ion.

A magnet having a high Tc, synthesized from metal ions of a metal-containing precursor and organic molecules having a conjugated framework, in a metal to organic ratio,

• said metal to organic ratio being at least about 1 ion to 1 organic molecule on an ion to molecule basis,
• said ions selected from Nickel (Ni), and Cobalt (Co), in valencies lower than their maximum valency state,
• said organic compounds being selected from the group consisting of organic compounds having functional groups that are able to coordinate or bond with said metal ion.

A magnet having a Tc greater.than 250K, comprising metal ions from a metal-containing precursors and organic molecules having a conjugated framework, said ions selected from Nickel (Ni), and Cobalt (Co), provided in valencies lower than their maximum valency state, said organic compounds being selected from the group consisting of organic compounds having functional groups that are able to coordinate with said metal ion.

A method of preparing a magnet having a high Tc, said method comprising synthesizing said magnet from metal ions of a metal-containing precursor and organic molecules having a conjugated framework, in a metal to organic ratio,

• said metal to organic ratio being at least about 1 ion to 1 organic molecule on an ion to molecule basis,
• said ions selected from Nickel (Ni), and Cobalt (Co), in valencies lower than their maximum valency state,
• said organic compounds being selected from the group consisting of organic compounds having functional groups that are able to coordinate or bond with said metal ion.