...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Impact of constitutional isomerism on phosphorescence and anion-sensing properties of donor–acceptor organoboron Pt(II) complexes
【24h】

Impact of constitutional isomerism on phosphorescence and anion-sensing properties of donor–acceptor organoboron Pt(II) complexes

机译：体质异构对供体-受体有机硼Pt（II）配合物的磷光和阴离子传感性能的影响

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

A new dimesitylboryl-functionalized molecule (NBppy) and its corresponding N^C chelate platinum(II) complex (Pt-NBppy) have been synthesized and fully characterized. The photophysical and electronic properties of NBppy and Pt-NBppy were examined and compared to their constitutional isomers, BNppy and Pt-BNppy, respectively. Due to the presence of the electron-donating diphenylamino group, the NBppy and BNppy compounds exhibit intense donor–acceptor charge transfer (CT) and bright blue fluorescence. Pt-NBppy displays weak phosphorescence, originating from a mixture of MLCT/π→π~* and CT transitions while Pt-BNppy displays bright phosphorescence originating from a CT transition. The Lewis acidity of the isomers was examined by fluoride titration experiments, which established that BNppy exhibits much higher affinity towards fluoride ions than NBppy. In addition, while the phosphorescence of Pt-BNppy is quenched by fluoride addition, Pt-NBppy demonstrates an unusual turn-on phosphorescent response towards fluoride ions, which illustrate the distinct impact of constitutional isomers on phosphorescence and anion sensing.
机译：合成并充分表征了一种新的二聚三氟甲酰基官能化分子（NBppy）及其相应的N ^ C螯合铂（II）配合物（Pt-NBppy）。检查了NBppy和Pt-NBppy的光物理和电子性质，并分别与它们的结构异构体BNppy和Pt-BNppy进行了比较。由于存在供电子二苯氨基基团，因此NBppy和BNppy化合物表现出强烈的供体-受体电荷转移（CT）和亮蓝色荧光。 Pt-NBppy显示出微弱的磷光，其起源于MLCT /π→π〜*和CT跃迁的混合物，而Pt-BNppy显示出源自CT跃迁的明亮的磷光。通过氟化物滴定实验检查了异构体的路易斯酸度，该实验确定BNppy对氟离子的亲和力比NBppy高。此外，尽管Pt-BNppy的磷光通过添加氟化物而淬灭，但Pt-NBppy表现出对氟离子的异常开启磷光响应，这说明了结构异构体对磷光和阴离子感测的显着影响。

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