【摘 要】
：
A novel pyridinium salt, 2,4-bis[p-(N,N-dimethylamino)styryl]-N-methyl pyridinium iodide (BMSPI) was syn-thesized and characterized by TG, 1H NMR spectroscopy a
【机 构】
：
Department of Chemistry, Anhui University,Department of Chemistry, Anhui University,Department of Ch
【出 处】
：
Chinese Journal of Chemistry
论文部分内容阅读
A novel pyridinium salt, 2,4-bis[p-(N,N-dimethylamino)styryl]-N-methyl pyridinium iodide (BMSPI) was syn-thesized and characterized by TG, 1H NMR spectroscopy and elemental analysis, and the reaction process was studied by using ES-MS. When BMSPI was pumped by a pulsed 1064 nm, 50 ps laser beam, it manifests highly ef-ficient TPA (Two-Photon Absorption) and up-conversion superradiance. The up-conversion efficiency was 6.0% at the pump energy of 4—6 mJ and the lifetime of two-photon fluorescence was measured as 59 ps.
A novel pyridinium salt, syn-thesized and characterized by TG, 1H NMR spectroscopy and elemental analysis, and the reaction process was studied by using ES-MS. The up-conversion efficiency was 6.0 when BMSPI was pumped by a pulsed 1064 nm, 50 ps laser beam, it manifests highly ef-ficient TPA (Two-Photon Absorption) % at the pump energy of 4-6 mJ and the lifetime of two-photon fluorescence was measured as 59 ps.
其他文献
改革开放以来,中国社会主义现代化事业取得了令人鼓舞的重大成就,但我们也清楚地看到,城乡之间、地区之间发展差距和部分社会成员之间收入差距过大,部分低收入群众生活比较困
为分析R134a喷射冲击相变制冷的传热效果,以数值模拟为基础,采用计算流体力学的思路,通过控制变量的方法,研究各个物理因素对冷却效果的影响。流道长度L为定值,分析变量为流
新加坡的人口是丰城市的3倍多一点,面积不到丰城的四分之一,但新加坡依靠外资起步,借助外力发展,在独立建国40余年中悄然崛起,一跃成为亚洲现代文明的先行者。丰城市应借鉴
The application of 5’-nitrosalicylfluorone (5’-NSF)-molybdenum(VI) complex as a spectroscopic probe was studied. In the buffer medium of HOAc-NaOAc at 3.45 an
12月16日,青海省省长骆惠宁专门听取了省统计局、国家统计局青海调查总队工作情况汇报。他充分肯定了省统计局、青海调查总队近年来的工作,要求统计调查部门进一步加快统计方
Z)-1-[2-(Tri-o-tolylstannyl)vinyl]-1-indanol (1) and (Z)-1-[2-(tri-p-tolylstannyl)vinyl]-1-indanol (2) were syn-thesized by the addition reaction of 1-ethynylin
对于那些做事特别认真细致、一丝不苟、严谨、执着的人湘潭称之为“古人”。“陈古人”名叫陈德胜,在他家那翰墨飘香、充满艺术气息的书房里观赏其珍贵家藏的人无不认定他的
In present paper, the effect of enhanced solution on mechanical properties and aging behavior in a commercially available 2024A1 alloy were investigated using t