化学试剂
化學試劑
화학시제
CHEMICAL REAGENTS
2010年
2期
159-161,185
,共4页
α-呋喃甲醛缩间苯二甲酰腙%铜离子%荧光增强%分子识别
α-呋喃甲醛縮間苯二甲酰腙%銅離子%熒光增彊%分子識彆
α-부남갑철축간분이갑선종%동리자%형광증강%분자식별
bis(furan-2-ylmethylene)isophthalohydrazide%Cu~(2+)%fluorescence enhancement%molecular recognition
设计合成了荧光传感分子α-呋喃甲醛缩间苯二甲酰腙(m-PB-Fu),应用吸收和荧光光谱研究其在乙腈中对过渡金属离子的响应.结果表明,m-PB-Fu的吸收光谱对Cu~(2+)、Hg~(2+)和Pb~(2+)均有响应,配位能力相近,对Zn~(2+)、Ni~(2+)和Cd~(2+)响应则很弱;但它的荧光发射光谱对Cu~(2+)表现出高选择性响应,荧光增强达100倍.初步探讨了受体分子与Cu~(2+)结合模式与荧光增强原因.
設計閤成瞭熒光傳感分子α-呋喃甲醛縮間苯二甲酰腙(m-PB-Fu),應用吸收和熒光光譜研究其在乙腈中對過渡金屬離子的響應.結果錶明,m-PB-Fu的吸收光譜對Cu~(2+)、Hg~(2+)和Pb~(2+)均有響應,配位能力相近,對Zn~(2+)、Ni~(2+)和Cd~(2+)響應則很弱;但它的熒光髮射光譜對Cu~(2+)錶現齣高選擇性響應,熒光增彊達100倍.初步探討瞭受體分子與Cu~(2+)結閤模式與熒光增彊原因.
설계합성료형광전감분자α-부남갑철축간분이갑선종(m-PB-Fu),응용흡수화형광광보연구기재을정중대과도금속리자적향응.결과표명,m-PB-Fu적흡수광보대Cu~(2+)、Hg~(2+)화Pb~(2+)균유향응,배위능력상근,대Zn~(2+)、Ni~(2+)화Cd~(2+)향응칙흔약;단타적형광발사광보대Cu~(2+)표현출고선택성향응,형광증강체100배.초보탐토료수체분자여Cu~(2+)결합모식여형광증강원인.
A novel bis(furan-2-ylmethylene)isophthalohydrazide(m-PB-Fu) was designed and synthesized.Its structure was characterized by IR and NMR.m-PB-Fu was studied on its capability to recognize transition metal ions via its absorption and fluorescence spectra.It was found that m-PB-Fu was coordinated with Cu~(2+),Hg~(2+) and Pb~(2+) to a similar extent in the ground state,whereas its fluorescence showed a highly selective response to Cu~(2+) only.In an acetonitrile medium Cu~(2+) could induce a dramatic enhancement of m-PB-Fu 100-fold.The mechanism for fluorescence enhancement of m-PB-Fu by Cu~(2+) was briefly discussed.
