化学与生物工程
化學與生物工程
화학여생물공정
CHEMISTRY & BIOENGINEERING
2014年
12期
35-38
,共4页
7-(4-氰苯)偶氮-10-羟基苯并喹啉%偶氮化合物%F- 检测%裸眼识别%1 HNMR 滴定实验
7-(4-氰苯)偶氮-10-羥基苯併喹啉%偶氮化閤物%F- 檢測%裸眼識彆%1 HNMR 滴定實驗
7-(4-청분)우담-10-간기분병규람%우담화합물%F- 검측%라안식별%1 HNMR 적정실험
7-(4-cyanophenyl)azo-10-hydroxybenzo[h]quinoline%azo compound%F- detection%naked eye rec-ognition%1 HNMR titration experiment
合成了偶氮化合物7-(4-氰苯)偶氮-10-羟基苯并喹啉(主体Ⅰ),研究了不同阴离子(F-、Cl-、Br-、I-、Ac-、HSO-4)对主体Ⅰ紫外吸收光谱及溶液颜色的影响,并通过1 HNMR 滴定实验对识别机理进行了探讨。结果表明,主体Ⅰ可以选择性识别 F-:加入适量的 F-后,溶液颜色由黄色(主体Ⅰ的颜色)变成了紫红色(主体-F-配合物的颜色),说明主体Ⅰ能够裸眼识别 F-;主体Ⅰ的紫外吸收光谱中生成了新的吸收峰;等吸收点表明主体 I 与 F-是以一定的配比形成了新的配合物;吸收峰的强度与 F-浓度在一定范围内呈线性关系。
閤成瞭偶氮化閤物7-(4-氰苯)偶氮-10-羥基苯併喹啉(主體Ⅰ),研究瞭不同陰離子(F-、Cl-、Br-、I-、Ac-、HSO-4)對主體Ⅰ紫外吸收光譜及溶液顏色的影響,併通過1 HNMR 滴定實驗對識彆機理進行瞭探討。結果錶明,主體Ⅰ可以選擇性識彆 F-:加入適量的 F-後,溶液顏色由黃色(主體Ⅰ的顏色)變成瞭紫紅色(主體-F-配閤物的顏色),說明主體Ⅰ能夠裸眼識彆 F-;主體Ⅰ的紫外吸收光譜中生成瞭新的吸收峰;等吸收點錶明主體 I 與 F-是以一定的配比形成瞭新的配閤物;吸收峰的彊度與 F-濃度在一定範圍內呈線性關繫。
합성료우담화합물7-(4-청분)우담-10-간기분병규람(주체Ⅰ),연구료불동음리자(F-、Cl-、Br-、I-、Ac-、HSO-4)대주체Ⅰ자외흡수광보급용액안색적영향,병통과1 HNMR 적정실험대식별궤리진행료탐토。결과표명,주체Ⅰ가이선택성식별 F-:가입괄량적 F-후,용액안색유황색(주체Ⅰ적안색)변성료자홍색(주체-F-배합물적안색),설명주체Ⅰ능구라안식별 F-;주체Ⅰ적자외흡수광보중생성료신적흡수봉;등흡수점표명주체 I 여 F-시이일정적배비형성료신적배합물;흡수봉적강도여 F-농도재일정범위내정선성관계。
An azo compound 7-(4-cyanophenyl)azo-10-hydroxybenzo[h]quinoline(host Ⅰ)was synthesized. The effects of anions such as F- ,Cl- ,Br- ,I- ,Ac- and HSO-4 on ultraviolet absorption spectrum and color of host Ⅰ solution were investigated.Recognition mechanism was studied by 1 HNMR titration experiment.Re-sults indicated that,host Ⅰ could selectively bind to F- .When proper dosage of F- was added,the color of the solution changed from yellow to purple,and then naked eye recognition of F- achieved.The hybrid solution pro-duced a new absorption peak,and equal absorption points indicated the host Ⅰ-F- complex was formed with a certain ratio.There was a linear relationship between the absorbance intensity of the system and the concentra-tion of F- in a certain range.