The First College of Clinical Medical Science, China Three Gorges University, and Yichang Central People's Hospital, Yichang 443003, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2011 Sep;79(5):1345-51. doi: 10.1016/j.saa.2011.04.067. Epub 2011 May 4.
In this paper, we report the synthesis, crystal structure, photophysical properties, and electronic nature of a phosphorescent Cu(I) complex of [Cu(Phen-Np)(POP)]BF4, where Phen-Np and POP stand for 2-(naphthalen-1-yl)-1H-imidazo[4,5-f][1,10]phenanthroline and bis(2-(diphenylphosphanyl)phenyl) ether, respectively. [Cu(Phen-Np)(POP)]BF4 renders a yellow phosphorescence peaking at 545 nm, with a long excited state lifetime of 4.69 μs. Density functional calculation reveals that the emission comes from a triplet metal-to-ligand-charge-transfer excited state. We electrospun composite nanofibers of [Cu(Phen-Np)(POP)]BF4 and polystyrene (PS), hoping to explore the possibility of using the composite nanofibers as an oxygen sensing material. The finally obtained samples with average diameter of ∼300 nm exhibit a maximum sensitivity of 7.2 towards molecular oxygen with short response time of 7s due to the large surface-area-to-volume ratio of nanofibrous membranes. No photobleaching is detected in these samples.
在本文中，我们报告了一种磷光 Cu(I) 配合物 [Cu(Phen-Np)(POP)]BF4 的合成、晶体结构、光物理性质和电子性质，其中 Phen-Np 和 POP 分别代表 2-(萘-1-基)-1H-咪唑并[4,5-f][1,10]菲咯啉和双(2-(二苯基膦基)苯基)醚。[Cu(Phen-Np)(POP)]BF4 呈现出 545nm 的黄色磷光，激发态寿命长达 4.69μs。密度泛函计算表明，发射来自三重态金属-配体-电荷转移激发态。我们通过静电纺丝制备了 [Cu(Phen-Np)(POP)]BF4 和聚苯乙烯（PS）的复合纳米纤维，希望探索将复合纳米纤维用作氧传感材料的可能性。最终得到的平均直径约为 300nm 的样品具有高达 7.2 的最大灵敏度，对氧气的响应时间为 7s，这归因于纳米纤维膜的大表面积与体积比。在这些样品中没有检测到光漂白。
