Long W, Li L, Tong A
Department of Chemistry, Tsinghua University, 100084 Beijing.
Guang Pu Xue Yu Guang Pu Fen Xi. 2001 Aug;21(4):443-6.
The heavy atom pertuber (HAP) can promote the intersystem crossing and the rates of radiative and nonradiative processes of triplet state, thus shortens the phosphorescence lifetime. The determination of kinetic parameters for luminescence process is very importance to understand luminescence process and the mechanisms of the heavy atom effects. In this paper, 1-chloronaphthalene and 1-bromonaphthalene were selected as the modal compounds, the possibility of determination of photophysical parameters for emission of nonprotected fluid room temperature phosphorescence (NP-RTP) by RTP lifetime method was studied based on the definition on the phosphorescence lifetime and relation with the concentration of HAP. The results obtained by two ways prove that the RTP lifetime method can be used to determine photophysical parameters for RTP emission.
重原子微扰剂（HAP）可促进系间窜越以及三重态的辐射和非辐射过程速率，从而缩短磷光寿命。发光过程动力学参数的测定对于理解发光过程及重原子效应机制非常重要。本文选用1-氯萘和1-溴萘作为模型化合物，基于磷光寿命的定义及其与HAP浓度的关系，研究了用磷光寿命法测定非保护流体室温磷光（NP-RTP）发射光物理参数的可能性。通过两种方法得到的结果证明，磷光寿命法可用于测定RTP发射的光物理参数。
