A photoluminescent material comprising a composition of halogen-substituted alkaline earth metal aluminate doped with at least one rare-earth element activator.
一种光致发光材料，其包含掺杂有至少一种稀土元素活化剂的卤素取代的碱土金属铝酸盐的组合物。
This article studies the reactions of nitrous acid with eldest aromatic amine and diazonium salts substituted by halogen, and investigates the condition and mechanism of those reactions.
通过对亚硝酸与伯芳胺反应形成重氮盐，以及重氮盐被卤素取代生成卤代芳烃的反应条件和反应机理的研究。
Results showed that this kind of compounds has excellent photobleaching property. The bleaching effect of phthalocyanines containing halogen substituent is better than the one that is not substituted.
结果表明该类化合物具有很好的光学漂白性，含卤素取代酞菁的漂白效果明显好于不含卤素酞菁的效果。
The invention relates to novel specifically trifluoromethyl and halogen substituted 1,3-diphenyl ureas and their use as active ingredients in the preparation of pharmaceutical compositions.
本发明涉及新的特别由三氟甲基和卤素取代的1，3-二苯基脲，以及它们在药物组合物的制备中作为活性成分的用途。
The present invention relates to compounds of formula (I) wherein R1 is hydrogen, lower alkyl or benzyl which may be optionally substituted by halogen or lower alkoxy;
本发明涉及式（I）化合物及其药用活性盐，其中R1是氢、低级烷基或苄基，其可任选地被卤素或低级烷氧基取代；
The present invention relates to compounds of formula (I) wherein R1 is hydrogen, lower alkyl or benzyl which may be optionally substituted by halogen or lower alkoxy;
本发明涉及式（I）化合物及其药用活性盐，其中R1是氢、低级烷基或苄基，其可任选地被卤素或低级烷氧基取代；
应用推荐