| 摘要 |
The present invention provides a compound having absorbing and luminescence wavelengths at relatively longer wavelength side of the visible area, and having thermal stability, which acts as a dye and/or a luminescence material and has practical utility therefor, and a production method thereof. The above subject of the present invention can be solved by a compound represented by general formula I: R1—X—R2, wherein R1 and R2 each independently represents, for example, an N,N-diaryl-4-aminophenyl group, and X is one condensed ring group selected from the group consisting of following formulae X-1 to X-3:
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