| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an organic material absorbing two photons in high efficiency, i.e., a material having high two-photon absorption cross-section and provide an organic material exhibiting two-photon luminescence having high luminescent intensity. <P>SOLUTION: The compound exhibiting non-resonant two-photon absorption is expressed by general formula (1): X<SP>2</SP>-(-CR<SP>4</SP>=CR<SP>3</SP>-)<SB>m</SB>-C(=O)-(-CR<SP>1</SP>=CR<SP>2</SP>-)<SB>n</SB>- X<SP>1</SP>...(1) (X<SP>1</SP>and X<SP>2</SP>are each independently a substituted or non-substituted aryl or a substituted or non-substituted heterocyclic group; R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>and R<SP>4</SP>are each independently hydrogen atom or a substituent; two or more groups of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>and R<SP>4</SP>may be bonded together to form a ring; plural R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>and R<SP>4</SP>groups may be the same or different when (n) or (m) is≥2; and (n) and (m) are each independently an integer of 1-4). <P>COPYRIGHT: (C)2003,JPO</p> |
