A Self-Complementary Nucleoside: Synthesis, Solid-State Structure, and Fluorescence Behavior
作者:Eun-Kyoung Bang、Jiyeon Won、Dohyun Moon、Jin Yong Lee、Byeang Hyean Kim
DOI:10.1002/asia.201000924
日期:2011.8.1
nucleobases linked through an ethynyl group has been synthesized. The rigid aromatic nucleobases provided AT with a pale‐blue fluorescence. Unlike most fluorescent organic molecules, nucleoside AT gives enhanced fluorescence in solid state. It exhibits considerably enhanced fluorescence intensity and a remarkable redshift (ca. 70 nm) in its emission maximum upon an increase in concentration or decrease in
合成了一种新型的自互补核苷(A T),其特征在于两个通过乙炔基连接的互补核碱基。刚性芳族核碱基为A T提供了淡蓝色荧光。与大多数荧光有机分子不同,核苷A T可增强固态荧光。由于浓度的增加或温度的降低,由于通过氢键和组织良好的π-π堆积形成的稳定聚集体的形成,它的荧光强度显着增强,并且其最大发射峰出现明显的红移(约70 nm)。一种T组件;这些相互作用在X射线晶体学测定的固态结构中也很明显。DFT计算支持此类聚合过程的偏好。