molecular composition meaning in English

分子组成

Photoluminescence characteristics of four hemicyanine derivatives with similar molecular compositions but different donor - acceptor groups in langmuir - blodgett ( lb ) films have been studied by steady state and time - resolved fluorescence spectroscopies . the study mainly include the aggregation behavior of hemicyanine derivatives in lb films , the influence of the donor - acceptor on the excited level and excited lifetime of the hemicyenine derivatives
通过改变半花菁的亲水基团与疏水基团而得到了四种半花菁衍生物，利用稳态和时间分辨荧光研究了不同亲水基团与疏水基团对半花菁衍生物光学特性的影响.主要包括半花菁衍生物在lb膜中的聚集特性,亲水基团与疏水基团对半花菁衍生物激发态寿命的影响等