Organic compound, electrochromic element containing the same, optical filter, lens unit, imaging device, and window component

1. An organic compound represented by general formula (1) or (2):

where X 1 and X 2 are each independently selected from a substituted or unsubstituted alkyl group and a substituted or unsubstituted aralkyl group, and

R 11 to R 20 are each independently selected from a hydrogen atom and a substituent, the substituent being any of a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted amino group, a halogen atom, and an acyl group, and A 1 − and A 2 − each independently represent a monovalent anion.

2. The organic compound according to claim 1 , wherein the X 1 and the X 2 are substituents of the same kind.

3. The organic compound according to claim 2 , wherein the X 1 and the X 2 are the aralkyl groups.

4. The organic compound according to claim 1 , wherein all of the R 11 to the R 20 are hydrogen atoms.

5. The organic compound according to claim 1 , wherein the A 1 − and the A 2 − are anions of the same kind.

6. An electrochromic element comprising a pair of electrodes and an electrochromic layer between the electrodes,

the electrochromic layer containing a first organic compound, the first organic compound being an organic compound according to claim 1 .

7. The electrochromic element according to claim 6 , wherein the electrochromic layer contains a second organic compound different from the first organic compound.

8. The electrochromic element according to claim 7 , wherein the second organic compound is any of a phenazine compound, ferrocene, a metallocene compound, a phenylenediamine compound, and a pyrazoline compound.

9. The electrochromic element according to claim 7 , wherein the electrochromic element absorbs light with wavelengths of 420 nm or more and 700 nm or less.

10. The electrochromic element according to claim 6 , wherein the electrochromic layer is a liquid containing an electrolyte and the first organic compound.

11. An optical filter comprising an electrochromic element according to claim 6 and an active element coupled to the electrochromic element.

12. The optical filter according to claim 11 , wherein the active element is configured to drive the electrochromic element and regulate an amount of light passing through the electrochromic element.

13. A lens unit comprising: an optical filter according to claim 11 , and an imaging optical system including a plurality of lenses.

14. An imaging device comprising: an imaging optical system including a plurality of lenses, an optical filter according to claim 11 , and an image pick-up element configured to receive light transmitted through the optical filter.

15. An imaging device configured to allow an imaging optical system including a plurality of lenses to be attached thereto, the imaging device comprising:

an optical filter according to claim 11 , and an image pick-up element configured to receive light transmitted through the optical filter.

16. A window component comprising:

a pair of transparent substrates, an electrochromic element according to claim 6 between the transparent substrates, and an active element coupled to the electrochromic element, the window component configured to regulate an amount of light passing through the transparent substrates using the electrochromic element.

17. The window component according to claim 16 , wherein the active element is configured to drive the electrochromic element and regulate an amount of light passing through the electrochromic element.