...
  • 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 >Acid induced acetylacetonato replacement in biscyclometalated iridium(III) complexes
【24h】

Acid induced acetylacetonato replacement in biscyclometalated iridium(III) complexes

机译：酸诱导双环金属化铱（III）配合物中的乙酰丙酮取代

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

Biscyclometalated iridium(III) complexes with an ancillary acetylacetone ligand, Ir(L) _2(acac), (L = 2-(benzo[b]thiophen-2-yl)pyridine (btp), 1-phenylisoquinoline (piq), 2-phenylbenzothiazole (bt), 2-phenylpyridine (ppy), acac = deprotonated acetylacetone), demonstrate spectroscopic changes in their UV-Vis absorption and luminescent emission under acidic conditions. Such changes were found to be the same as those observed when certain mercury salts exist in the systems. Because some iridium(III) complexes have sulfur-containing ligands (i.e., btp and bt), a question was then raised as for whether or not the spectroscopic changes are associated with the specific affinity of Hg 2+ to the sulfur atom. Extensive studies performed in this work unambiguously proved that the observed spectroscopic changes were solely the results of the acid induced departure of acac and the follow-up coordination of solvent acetonitrile to the iridium(III) center and that the generally anticipated Hg ~(2+)-S affinity and its effect on the photophysical properties of iridium(III) luminophores did not play a role.
机译：具有辅助乙酰丙酮配体Ir（L）_2（acac）的双环金属化铱（III）配合物，（L = 2-（苯并[b]噻吩-2-基）吡啶（btp），1-苯基异喹啉（piq），2 -苯基苯并噻唑（bt），2-苯基吡啶（ppy）（acac =去质子化的乙酰丙酮）证明了在酸性条件下其UV-Vis吸收和发光发射的光谱变化。发现这种变化与系统中存在某些汞盐时观察到的变化相同。由于一些铱（III）配合物具有含硫的配体（即btp和bt），因此提出了一个问题，即光谱变化是否与Hg 2+对硫原子的比亲和力有关。在这项工作中进行的广泛研究明确表明，观察到的光谱变化仅仅是酸引起的acac离开以及溶剂乙腈与铱（III）中心的后续配位的结果，并且是普遍预期的Hg〜（2+ ）-S亲和力及其对铱（III）发光体的光物理性质的影响不起作用。

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