Colorimetric sensing of Cu(II) by 2-methyl-3-[(pyridin-2-ylmethyl)-amino]-1,4-naphthoquinone: Cu(II) induced deprotonation of NH responsible for color changes

Wu SP; Huang RY; Du KJ

首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Colorimetric sensing of Cu(II) by 2-methyl-3-[(pyridin-2-ylmethyl)-amino]-1,4-naphthoquinone: Cu(II) induced deprotonation of NH responsible for color changes

【24h】

Colorimetric sensing of Cu(II) by 2-methyl-3-[(pyridin-2-ylmethyl)-amino]-1,4-naphthoquinone: Cu(II) induced deprotonation of NH responsible for color changes

机译：2-甲基-3-[（吡啶-2-基甲基）-氨基] -1,4-萘醌对铜（II）的比色检测：铜（II）引起NH的去质子化，从而引起颜色变化

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

1,4-Naphthoquinone based chemosensors 1 and 2 detect only the presence of Cu2+ ions among other transition metal ions by changing color from orange to dark blue. Chemosensors 1 and 2 function as tridentate ligands, which bind Cu2+ ions through three functional groups: an amine nitrogen, a pyridine nitrogen and a quinone oxygen. On addition of Cu2+, both 1 and 2 exhibit a 168 nm red shift in absorption wavelength (pH 7.0). The effect on pH by the formation of these Cu2+ complexes was determined by UV-vis spectroscopic pH titration. In the pH range of 6-7.5, a maximum was observed at 634 nm and exhibited the formation of deprotonated 1-Cu2+ and 2-Cu2+ complexes. A reversible color change (orange-blue-orange) was observed when chemosensor 1 was mixed with Cu2+ in CH3CN. This represents a reversible process of deprotonation and re-protonation of the 1-Cu2+ complexes and also demonstrates the short half-life of thr deprotonated 1-Cu2+ complexes in CH3CN.

机译：基于1,4-萘醌的化学传感器1和2通过将颜色从橙色更改为深蓝色，仅检测其他过渡金属离子中Cu2 +离子的存在。化学传感器1和2充当三齿配体，它们通过三个官能团结合Cu2 +离子：胺氮，吡啶氮和醌氧。添加Cu2 +时，1和2均在吸收波长（pH 7.0）中显示168 nm红移。通过UV-可见光谱pH滴定确定这些Cu2 +配合物的形成对pH的影响。在6-7.5的pH范围内，在634 nm处观察到最大值，并显示了去质子化的1-Cu2 +和2-Cu2 +配合物的形成。当化学传感器1与Cu3 +在CH3CN中混合时，观察到可逆的颜色变化（橙色-蓝色-橙色）。这代表了1-Cu2 +配合物的去质子化和再质子化的可逆过程，还表明了在CH3CN中thr去质子化的1-Cu2 +配合物的半衰期短。

著录项

来源
《Dalton transactions: An international journal of inorganic chemistry》 |2009年第24期|共6页
作者
Wu SP; Huang RY; Du KJ;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类化学;
关键词
Cu(II); NH; reactive oxygen species;

机译：铜（II）;NH;活性氧;

相似文献

外文文献
中文文献
专利

1. Colorimetric sensing of Cu(II) by 2-methyl-3-[(pyridin-2-ylmethyl)-amino]-1,4-naphthoquinone: Cu(II) induced deprotonation of NH responsible for color changes [J] . Wu SP, Huang RY, Du KJ Dalton transactions: An international journal of inorganic chemistry . 2009,第24期

机译：2-甲基-3-[（吡啶-2-基甲基）-氨基] -1,4-萘醌对铜（II）的比色检测：铜（II）引起NH的去质子化，从而引起颜色变化
2. Colorimetric recognition of Cu(II) by (2-dimethylaminoethyl)amino appended anthracene-9,10-diones in aqueous solutions: deprotonation of aryl amine NH responsible for colour changes [J] . Kaur N, Kumar S Dalton transactions: An international journal of inorganic chemistry . 2006,第31期

机译：比色法识别水溶液中的（2-二甲基氨基乙基）氨基附加蒽-9,10-二酮对铜（II）的作用：引起颜色变化的芳基胺NH脱质子化
3. Selective colorimetric sensing of fluoride in an aqueous solution by amino-naphthoquinone and its Co(II), Ni(II), Cu(II) and Zn(II) complexes - effect of complex formation on sensing behaviour [J] . Parthiban C., Ciattini Samuele, Chelazzi Laura, RSC Advances . 2016,第94期

机译：通过氨基 - 萘醌及其CO（II），Ni（II），Cu（II）和Zn（II）复合物 - 复杂形成对感测行为的含量，Ni（II），Ni（II），Ni（II），Ni（II），Cu（II）和Zn（II）的选择性比色感测
4. Alternating Copolymerizations of 9,10-Anthraquinone diketene or 1,4-Naphthoquinone diketene with 1,4-Benzoquinone or 1,4-Benzoquinone diimine: A Novel Preparative Route for Polyarylate and Polyaramide [C] . Shouji Iwatsuki, Takahito Itoh, Masahiko Kozaki Asia symposium on polymerization and fine polymers . 1995

机译：9,10-蒽醌二酮或1,4-萘醌二酮与1,4-苯醌或1,4-苯醌二亚胺的交替共聚：聚芳酯和聚芳酰胺的新型制备方法
5. I. Synthesis of substituted naphthalenes utilizing active nickel. II. Synthesis of substituted naphthoquinones and formation of a charge transfer complex. III. Synthesis of substituted 1,4-diphenyl-2-butenes from (eta(6):eta(6)-1,4-diphenyl-1,3-butadiene)-bis(tricarbonylchromium) [D] . Forkner, Matthew W. 1988

机译：I.利用活性镍合成取代的萘。二。取代萘醌的合成和电荷转移配合物的形成。三，由（eta（6）：eta（6）-1,4-二苯基-1,3-丁二烯）-双（三羰基铬）合成取代的1,4-二苯基-2-丁烯
6. Poly(aspartic acid) Electrospun Nanofiber HydrogelMembrane-Based Reusable Colorimetric Sensor for Cu(II) and Fe(III)Detection [O] . Caidan Zhang, *, Haidong Li, 2019

机译：聚天冬氨酸电纺纳米纤维水凝胶用于Cu（II）和Fe（III）的基于膜的可重复使用的比色传感器检测
7. Colorimetric and Ratiometric Fluorescent Chemosensor with a Large Red-Shift in Emission: Cu(II)-Only Sensing by Deprotonation of Secondary Amines as Receptor Conjugated to Naphthalimide Fluorophore [O] . -1

机译：色比例和比例荧光化学传感器，发射大的红转：Cu（ii）通过仲胺的去质子化作为与萘胺荧光团缀合的受体来感测

Colorimetric sensing of Cu(II) by 2-methyl-3-[(pyridin-2-ylmethyl)-amino]-1,4-naphthoquinone: Cu(II) induced deprotonation of NH responsible for color changes

摘要

著录项

相似文献

相关主题

期刊订阅