通过直接策略制备了八种以前无法获得的10-羟基苯并[ h ]喹啉衍生物,包括形成苯并[ h ]喹啉骨架,然后在位置10进行C–H乙酰氧基化。在所有情况下均能检测到,因为仅从激发的酮-互变异构体观察到发射。对带有与吡啶环相邻的给电子基团和吸电子基团的衍生物的研究使我们能够确定一些引起近红外发射和大斯托克斯位移的设计模式。对于10-羟基苯并[ cac啶,在745 nm处观察到发射,这是ESIPT系统所报道的最低能量的荧光之一。根据时间分辨的测量结果,质子传递非常快,时间常数在(0.08–0.45 ps)范围内。
EXTRACTING AGENT FOR SEPARATING LITHIUM ISOTOPES AND USE THEREOF
申请人:SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY, CHINESE ACADEMY OF SCIENCES
公开号:US20150299822A1
公开(公告)日:2015-10-22
The present invention discloses an extracting agent for separating lithium isotopes and an organic extraction phase containing the extracting agent; the organic extraction phase easily enriches
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Li and achieves the separation of lithium isotopes. The present invention also discloses a high-efficiency method for separating lithium isotopes in an aqueous solution, in which the organic extraction phase of the present invention is used, said organic extraction phase being suitable for single-stage and multi-stage extraction processes.