adj.环外的(不在环上的)
Mercury highly covalently coordinates to endocyclic and exocyclic N sites of DNA bases. 以上实验数据表明甲基汞与DNA的结合能力较其他形态的汞强。
Two new exocyclic ring-fused boron-dipyrromethene (BDP) dyes with benzo crown ether subunit at meso-position were prepared.Their spectroscopic and electrochemical properties were investigated. 本文报道了两种中位为苯并冠醚亚单元取代的含稠合外环的硼-二吡咯亚甲基染料的合成、光谱和电化学性质。
Keywords boron-dipyrromethene （BDP） dyes;fused exocyclic rings;electron transfer;fluorescent sensor; 硼-二吡咯亚甲基染料;稠合外环;电子转移;荧光探针;
an exocyclic double bond. 环外的一对化学键
