α-萘氧乙酸无保护流体室温磷光的重原子效应及有机溶剂的影响

Effects of Heavy Atom Perturber and Organic Solvent on Non protected Room Temperature Phosphorescence of α Naphthalenyloxyacetic Acid

萘氧乙酸（ＮＯＡ）是一类植物生长调节剂．对ＮＯＡ在β－环糊精（β－ＣＤ）保护下的室温磷光（ＲＴＰ）性质［１］和荧光性质［２］研究已有报道，但无保护性介质存在下的ＲＴＰ性质研究尚未见报道．我们在研究丹磺酰氯及其衍生物的无保护流体室温磷光（ＮＰ－ＲＴＰ）...

A strong and stable room temperature phosphorescence(RTP) signal of α naphthalenyloxyacetic acid( α NOA) aqueous solution can be induced only by using Na 2SO 3 as deoxidizer and KI(or TlNO 3) as heavy atom perturber. The maximum phosphorescence intensity wavelengths are λ ex / λ em =287/495, 521 nm(or λ ex / λ em =297/494, 521 nm) when KI(or TlNO 3) as heavy atom perturber. Though the RTP signal is lower with KI as heavy atom perturber than that with TlNO 3, but the analytical characteristics of the former is better than that of the latter. The kind and amount of organic solvent added to the system have a strong effect on the RTP intensity, irradiating time required to acquire stable RTP signal and the choice of heavy atom perturber.