氯化钕与苯并咪唑二元配合物的荧光光谱  

A study on photoluminescence character of the Nd chlorides complex with benximidazole

作　　者：赵天成[1] 杨一心[2] 王焕竹[3] 郝惠娣[1] 李青翠[2] 陈冬梅[2] 

机构地区：[1]西北大学化工学院 [2]西北大学化学系 [3]西北大学分析科学研究所,陕西西安710069

出　　处：《西北大学学报（自然科学版）》2007年第2期242-244,共3页Journal of Northwest University（Natural Science Edition）

基　　金：陕西省自然科学基金资助项目(2006B09);陕西省科技厅攻关科研基金资助项目(2001K08-G5)

摘　　要：目的研究氯化钕苯并咪唑二元配合物光致发光性质。方法采用日立F-4500荧光仪,氙灯为激发光源,测量了浓度为1×10-3mol/L氯化钕苯并咪唑配合物水溶液的三维荧光激发和发射光谱;分别以532 nm定激光作为激发光和采用OPO激光为激发光源,测量了该固体配合物荧光光谱。并对配合物的升频转换荧光性质及其机制进行了讨论。结果当激发光波长为250 nm时,配合物水溶液产生波长为290 nm和360 nm的荧光谱线;在540 nm激发光激发下产生290 nm和360 nm两个弱的荧光峰,这两处的荧光是钕配合物的升频转换荧光。该配合物水溶液荧光强度均弱于其固体配合物。结论氯化钕苯并咪唑配合物具有优良的光致发光特性并具有优异的升频转换荧光性质。Aim To study the photoluminescence character of the Nd chlorides complex with benzimidazole. Methods The three-dimensional fluorescence excitation and emission spectra of the Nd complex （aq, 1 × 10^-3 mol/L） were measured by the Xe lamp and gained on F-4500 fluorescence spectrophotometer. The fluorescence spectra of this solid complex were measured with the OPO laser as excited lamp, as well as the 523 nm excited laser. The up conversion fluorescence character and its mechanism of the Nd complex were also discussed. Results It has been observed that when the wavelength of the laser is 250 nm, the Nd complex produce relative strong fluorescence spectra at 290 nm and 360 nm ; while the wavelength of the laser is 540 nm, the Nd complex produce weak fluores- cence spectra both at 290 nm and 360 nm, which belong to up conversion fluorescence. The fluorescence intensity of complex in aqueous solution is weaker than that in solid condition. Conclusion The complex has the superior photoluminescence fluorescence character and superior up conversion fluorescence character.

关 键 词：钕配合物 三维荧光 升频转换荧光 激光诱导荧光 

分 类 号：O614.33[理学—无机化学]