Novel dielectric material

2:

• The dielectric material according to claim 1, wherein the charge-separation type non-coulombic ionic solid is a charge-separation type non-coulombic ionic solid in which multinuclear complex cations each composed of two metal elements and two ligands are aggregated to form cation clusters, the cation clusters are arranged in a face-centered cube, and inorganic anions serving as counter anions are aggregated to form anion clusters in tetrahedral interstices of the face-centered cube.

3:

• The dielectric material according to claim 1, wherein the cation cluster is an M1M2 hexa- to deca-nuclear complex cation cluster in which an element (M1) selected from the group consisting of elements of Group 10 and Group 11 and an element (M2) selected from the group consisting of elements of Group 6, Group 9, and Group 13 are linked via two ligands (X1 and X2).

5:

• The dielectric material according to claim 3, wherein X1 is a ligand having at least two diarylphosphino groups.

6:

• The dielectric material according to claim 3, wherein X2 is a ligand having a hydrogen-bonding functional group in addition to the at least one thiol group and the at least one carboxyl group.

7:

• The dielectric material according to claim 1, wherein the charge-separation type non-coulombic ionic solid undergoes a decrease in electrical resistance value to 1/100,000 or less with a temperature change from 100 K to 450 K.

8:

• A thermometer, comprising:
• the dielectric material according to claim 1.

9:

• A thermistor, comprising:
• the dielectric material according to claim 1.

10:

• A device protection circuit configured to operate in response to temperature increase, the device protection circuit comprising a thermostat using the dielectric material according to claim 1.

11:

• An electrostrictive material comprising a charge-separation type non-coulombic ionic solid in which complex cations each composed of a metal element and a ligand are aggregated to form cation clusters, the cation clusters are arranged in a closest packed structure, and anions are aggregated to form anion clusters in interstices of the closest packed structure.

12:

• The electrostrictive material according to claim 11, wherein the charge-separation type non-coulombic ionic solid is a charge-separation type non-coulombic ionic solid in which multinuclear complex cations each composed of two metal elements and two ligands are aggregated to form cation clusters, the cation clusters are arranged in a face-centered cube, and inorganic anions serving as counter anions are aggregated to form anion clusters in tetrahedral interstices of the face-centered cube.

The electrostrictive material according to claim 11, wherein the cation cluster is an M1M2 hexa- to deca-nuclear complex cation cluster in which an element (M1) selected from the group consisting of elements of Group 10 and Group 11 and an element (M2) selected from the group consisting of elements of Group 6, Group 9, and Group 13 are linked via two ligands (X1 and X2).

15:

• The electrostrictive material according to claim 11, wherein X1 is a ligand having at least two diarylphosphino groups.

16:

• The electrostrictive material according to claim 11, wherein X2 is a ligand having a hydrogen-bonding functional group in addition to the at least one thiol group and the at least one carboxyl group.

17:

• The electrostrictive material according to claim 11, wherein the charge-separation type non-coulombic ionic solid isotropically shrinks upon voltage application.

18:

• An actuator comprising the electrostrictive material according to claim 11.

20:

• The multinuclear metal complex according to claim 19, wherein X1 is a ligand having at least two diarylphosphino groups.

21:

• The multinuclear metal complex according to claim 19, wherein X2a is a ligand having a hydrogen-bonding functional group in addition to the at least one thiol group and the at least one carboxyl group.