Linker-activated covalent organic frameworks with azo bridges
As an important functional group,azo derivatives(-N=N-)have attracted wide attention due to their excellent properties,for their narrow bandgap,Lewis base property,photo-isomerization and re-dox activity,in chemistry and materials science fields[1].Among them,azo-benzene is one of the most popular candidates of optical molecular devices including easy synthesis,high quantum yields and fast switching.Generally,azo-benzene exists in two confor-mations,i.e.trans-state and cis-state,which are reversibly con-versed via-N=N-bond transformation in the presence of appropri-ate stimuli including temperature,mechanical stress,electric field,and especially photoirradiation[2].In addition,the azo group can not only endow the derivatives with narrow bandgap properties,but also permit the lone pair electrons on the nitrogen atom to ac-cept protons,as well as it coordinates with a variety of metals to avoid encountering aggregation of bimetallic ions,suitable for mul-tiple catalytic reactions,such as photodegradation,hydrogen evolu-tion reaction[3].
organic、linker、with、activated、bridges、covalent、frameworks
34
O;R373.21;TV51
2023-10-16（万方平台首次上网日期，不代表论文的发表时间）
共3页
3-5
