• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Investigation of Excited-State Proton Transfer in 2-Naphthol Derivatives Included in Langmuir-Blodgett Films
【24h】

Investigation of Excited-State Proton Transfer in 2-Naphthol Derivatives Included in Langmuir-Blodgett Films

机译：Langmuir-Blodgett膜中所含2-萘酚衍生物的激发态质子转移研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The excited-state proton transfer in LB films of 2-naphthol-6-sulfonamide of dodecylamine (NSDA)has been studied by spectrofluorimetric methods.A modification of the composition of the atmosphere surrounding the samples enables an identification of emission peaks of the reactants,namely,an excited protonated (ROH)form and a dissociated (RO~-)form taking part in the excited-state deprotonation (ESDP).The mechanism of proton transfer and the nature of the proton acceptor were assessed from the study of separated emission spectra,taken at various experimental conditions and for various film layouts.The estimated rate of proton transfer was between 5 X 10~8 and 5 X 10~9 s~(-1).The results concerning ESDP in LB films suggest that water molecules,probably forming chains of hydrogen bonds ("proton wires"),and carboxyl groups forming a type of hydrogen bonds with a proton donor could be the main proton acceptors.
机译：通过分光荧光法研究了十二烷基胺的2-萘酚-6-磺酰胺（NSDA）LB膜中的激发态质子转移。改变样品周围大气的组成可以确定反应物的发射峰，质子传递的机理和质子受体的性质从分离发射的研究中进行了评估，分别是激发质子化（ROH）形式和解离（RO〜-）形式参与激发态去质子化（ESDP）。质子传递的估计速率在5 X 10〜8和5 X 10〜9 s〜（-1）之间。有关LB膜中ESDP的结果表明，水分子，可能形成氢键链（“质子线”），并且与质子供体形成一类氢键的羧基可能是主要的质子受体。

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