Marwitz Alexander C, Dutta Anuj K, McDonald Morgan A, Knope Karah E
Department of Chemistry, Georgetown University, Washington, District of Columbia 20057, United States.
Cryst Growth Des. 2023 Apr 5;23(5):3330-3337. doi: 10.1021/acs.cgd.2c01475. eCollection 2023 May 3.
A new bismuth-organic compound containing 1,10-phenanthroline (phen) and 2,5-pyridinedicarboxylic acid (PDC) was synthesized and structurally characterized by single-crystal X-ray diffraction. The structure consists of 2-D {Bi(phen)(HPDC)(PDC)} sheets wherein the PDC ligands bridge metal centers via three unique bonding modes. The 2-D sheets are further connected through strong hydrogen-bonding interactions to form a 3-D supramolecular network. The parent compound displayed yellow photoluminescence in the solid state at room temperature. Doping studies were undertaken to incorporate Eu into the structure, statistically replacing Bi in small quantities (1, 5, and 10 mol % Eu relative to Bi). All three compounds displayed characteristic Eu emission, with total quantum yields as high as 16.0% and sensitization efficiencies between 0.21 and 0.37 depending on the Eu doping percentage.
合成了一种含有1,10-菲咯啉（phen）和2,5-吡啶二甲酸（PDC）的新型铋有机化合物，并通过单晶X射线衍射对其结构进行了表征。该结构由二维{Bi(phen)(HPDC)(PDC)}片层组成，其中PDC配体通过三种独特的键合模式桥连金属中心。二维片层通过强氢键相互作用进一步连接形成三维超分子网络。母体化合物在室温下的固态中表现出黄色光致发光。进行了掺杂研究，将Eu掺入结构中，相对于Bi以少量（1、5和10 mol% Eu）统计取代Bi。所有三种化合物均表现出Eu的特征发射，总量子产率高达16.0%，敏化效率在0.21至0.37之间，具体取决于Eu的掺杂百分比。
