Thermally conductive additive, thermally conductive composite material, and wire harness

A thermally conductive additive, comprising:

• an organic component;
• and
• a metal-containing component,
• wherein the organic component is configured as an organic compound including:
• a coordination part capable of multidentate-coordinating to a metal;
• and
• at least one functional group bonded to the coordination part and having a conjugated π-electron system, and
• the organic component coordinates in the coordination part to a metal atom constituting the metal-containing component to form a coordination complex,
• wherein the organic component coordinates only to the metal atoms occupying the surface of the continuum and the vicinity of the surface, while the organic component does not coordinate to metal atoms occupying the inner region of the continuum,
• wherein the coordination part has a β-diketone structure, and
• wherein the organic component has a structure represented by formula (A):
• where R1 and R2 are each independently a functional group having a conjugated π-electron system, or a hydrocarbon group or alkoxy group having 1 to 8 carbon atoms and having no conjugated π-electron system, and R3 is a functional group having a conjugated π-electron system, a hydrocarbon group or an alkoxy group having 1 to 8 carbon atoms and having no conjugated π-electron system, or a hydrogen atom, and at least one of the groups R1, R2, and R3 is a functional group having a conjugated π-electron system, where at least two of the groups R1, R2, and R3 may be connected to each other via a ring structure.

A thermally conductive additive, comprising:

• an organic component;
• and
• a metal-containing component,
• wherein the organic component is configured as an organic compound including:
• a coordination part capable of multidentate-coordinating to a metal;
• and
• at least one functional group bonded to the coordination part and having a conjugated π-electron system, and
• the organic component coordinates in the coordination part to a metal atom constituting the metal-containing component to form a coordination complex,
• wherein the metal-containing component forms a continuum in a solid state, and only some of the metal atoms constituting the continuum are coordinated with the organic component,
• wherein the coordination part has a β-diketone structure, and
• wherein the organic component has a structure represented by formula (A):
• where R1 and R2 are each independently a functional group having a conjugated π-electron system, or a hydrocarbon group or alkoxy group having 1 to 8 carbon atoms and having no conjugated π-electron system, and R3 is a functional group having a conjugated π-electron system, a hydrocarbon group or an alkoxy group having 1 to 8 carbon atoms and having no conjugated n-electron system, or a hydrogen atom, and at least one of the groups R1, R2, and R3 is a functional group having a conjugated π-electron system, where at least two of the groups R1, R2, and R3 may be connected to each other via a ring structure.