分析化学
分析化學
분석화학
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
2010年
1期
121-124
,共4页
吴粦华%韩莉峰%阮艺斌%江云宝
吳粦華%韓莉峰%阮藝斌%江雲寶
오린화%한리봉%원예빈%강운보
8-氨基喹啉取代苯甲酰胺衍生物%吸收光谱%荧光增强%铜%汞%分子识别
8-氨基喹啉取代苯甲酰胺衍生物%吸收光譜%熒光增彊%銅%汞%分子識彆
8-안기규람취대분갑선알연생물%흡수광보%형광증강%동%홍%분자식별
8-Aminoquinoline derivatives%Absorption spectra%Fluorescence enhancement%Copper%Mercu ry%Molecular%Recognition
设计合成了可识别金属离子的荧光传感分子8-氨基喹啉取代苯甲酰胺衍生物,通过核磁共振谱和质谱表征其结构;利用其光谱性质研究了该系列物质对过渡金属离子Cu~(2+),Hg~(2+),Pb~(2+),Zn~(2+),Ni~(2+)和Cd~(2+)的识别性质,初步探讨了其识别机理.实验表明:在乙腈中,8-氨基喹啉苯甲酰胺的吸收光谱在509 nm处对Cu~(2+)有响应,溶液由无色变成红色;而其荧光光谱对Hg~(2+)和Cu~(2+)有良好的选择性,荧光增强倍率分别高达368和192,与金属离子形成结合比为1:1配合物.
設計閤成瞭可識彆金屬離子的熒光傳感分子8-氨基喹啉取代苯甲酰胺衍生物,通過覈磁共振譜和質譜錶徵其結構;利用其光譜性質研究瞭該繫列物質對過渡金屬離子Cu~(2+),Hg~(2+),Pb~(2+),Zn~(2+),Ni~(2+)和Cd~(2+)的識彆性質,初步探討瞭其識彆機理.實驗錶明:在乙腈中,8-氨基喹啉苯甲酰胺的吸收光譜在509 nm處對Cu~(2+)有響應,溶液由無色變成紅色;而其熒光光譜對Hg~(2+)和Cu~(2+)有良好的選擇性,熒光增彊倍率分彆高達368和192,與金屬離子形成結閤比為1:1配閤物.
설계합성료가식별금속리자적형광전감분자8-안기규람취대분갑선알연생물,통과핵자공진보화질보표정기결구;이용기광보성질연구료해계렬물질대과도금속리자Cu~(2+),Hg~(2+),Pb~(2+),Zn~(2+),Ni~(2+)화Cd~(2+)적식별성질,초보탐토료기식별궤리.실험표명:재을정중,8-안기규람분갑선알적흡수광보재509 nm처대Cu~(2+)유향응,용액유무색변성홍색;이기형광광보대Hg~(2+)화Cu~(2+)유량호적선택성,형광증강배솔분별고체368화192,여금속리자형성결합비위1:1배합물.
The novel 8-Aminoquinoline(8-AQ) derivatives receptor was designed and synthesized.Its struc ture was characterized by NMR and ESI-MS.It was investigated to recognize metal ions such as Cu~(2+), Hg~(2+), Pb~(2+), Zn~(2+), Ni~(2+) and Cd~(2+) via its absorption and fluorescence spectra.The recognition mechanism .and bind ing mode were discussed.The results showed that 8-AQ derivatives 1 coordinated with Cu~(2+) can induce a new absorption peak at 509 nm, which turned the solution to red from colorless.In acetonitrile Hg~(2+) and Cu~(2+) induced dramatic enhancement in the fluorescence of the derivation 1 by 368 and 192 folds.Job plot showed 1:1 stoichiometry between 8-AQ and Cu~(2+) or Hg~(2+).
