인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Cyclic azobenzenes generally exhibit enhanced photophysical properties compared to conventional linear azobenzenes, such as visible‐light activation and exceptional thermal stability. However, their broader application has been hindered by synthetic challenges. Herein, the electrochemical synthesis of a ten‐membered cyclic azobenzene, 6,7‐dihydrodibenzo[e,i][1,4,7,8]dioxadiazecine (DDEI), is reported through the reduction of 1,2‐bis(2‐nitrophenoxy)ethane (BNPOE) in the presence of CO 2 . The reduction mechanism, involving an irreversible eight‐electron process and CO 2 capture, is elucidated using in situ fourier transform infrared spectroscopy (FT‐IR) spectroelectrochemistry, complemented by 13 C NMR, 1 H NMR, and mass spectrometry analyzes. Both experimental results and density functional theory calculations show that DDEI undergoes highly efficient trans ‐to‐ cis isomerization under green light (500 nm) irradiation, achieving a remarkable yield of 97%, with both isomers exhibiting excellent thermal stability. In contrast to 8‐ and 9‐membered cyclic azobenzenes and in line with conventional linear azobenzenes, the trans configuration of DDEI is more stable than the cis configuration. This combination of synthetic accessibility and superior photophysical properties makes DDEI a promising candidate for various applications, including those in living systems.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.