...
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Sn(II) induced concentration dependent dynamic to static excimer conversion of a conjugated naphthalene derivative
【24h】

Sn(II) induced concentration dependent dynamic to static excimer conversion of a conjugated naphthalene derivative

机译:Sn(II)诱导的浓度依赖性共轭萘衍生物的动态到静态准分子转化

获取原文
获取原文并翻译 | 示例
           

摘要

The X-ray structurally characterized naphthalene appended diformyl-p-cresol derivative (L) selectively detects Sn2+ by both colorimetric and fluorescence methods. In the presence of Sn2+, L exhibits a monomer emission at 420 nm along with a strong red excimer emission at 582 nm in acetonitrile. The excimer formation highly depends on Sn2+ concentration. The dynamic excimer, observed with up to 2.5 equivalents of Sn2+, gradually converts to a static form above 2.5 equivalents of Sn2+. Moreover, in a different solvent media, viz. in aqueous methanol, L can also detect Al3+ through the generation of intense green fluorescence. The photophysical interactions are rationalized by H-1 NMR, mass spectra, steady state and lifetime fluorescence measurements. DFT studies support the experimental findings.
机译:X射线结构表征的萘附加的二甲酰基对甲酚衍生物(L)通过比色法和荧光法选择性地检测Sn2 +。在存在Sn2 +的情况下,L在乙腈中的420 nm处有单体发射,而在582 nm处则有很强的红色受激准分子发射。准分子的形成高度依赖于Sn2 +的浓度。观察到最多含2.5当量的Sn2 +的动态受激准分子逐渐转变为高于2.5当量的Sn2 +的静态形式。此外,在不同的溶剂介质中。在甲醇水溶液中,L还可以通过产生强烈的绿色荧光来检测Al3 +。通过H-1 NMR,质谱,稳态和寿命荧光测量合理化了光物理相互作用。 DFT研究支持实验结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号