On the structure of meso-substituted F-BODIPYs and their assembly in molecular crystals: An experimental-theoretical approach
作者:Elba Xochitiotzi-Flores、Alisul A. Islas-Mejía、Héctor García-Ortega、Margarita Romero-Ávila、José Manuel Mendez-Stivalet、María del Pilar Carreón-Castro、Rosa Santillan、Mauricio Maldonado-Domínguez、Rafael Arcos-Ramos、Norberto Farfán
DOI:10.1016/j.jorganchem.2016.01.021
日期:2016.3
structurally analogous, yet their crystal packing motifs displayed remarkable differences due to contrasting hydrogen-bonding interactions. A CASTEP study of the unit cell for each compound provided the theoretical band structure and density-of-states (DOS) diagrams for each molecular crystal, suggesting a semiconductor character for both solids. Analysis of the computed electron density with Bader's
的分子晶体内消旋- (5 - ((4-甲酰基苯基)乙炔基)噻吩-2-基)-4,4-二氟-4-硼-3a,4a-二氮杂-小号-indacene图4a和内消旋- (4-( (4-甲酰基苯基)乙炔基)苯基)-4,4-二氟-4-硼-3a,4a-二氮杂-小号-indacene 4b中使用钯合成(0)催化的Sonogashira交叉偶联反应和使用,其特征在于试验-理论方法。F-BODIPYs 4a-b的晶体结构在结构上类似,但由于氢键相互作用的对比,它们的晶体堆积图案显示出显着差异。对每种化合物的晶胞进行的CASTEP研究提供了每种分子晶体的理论能带结构和状态密度(DOS)图,表明两种固体的半导体特性。使用Bader的QTAIM对计算的电子密度的分析描述了每个周期系统内的分子间接触网络,而自然键合轨道(NBO)显示出堆叠单元之间的同相重叠,表示通过堆叠使电子密度发生了分子间离域化。TDDFT分析溶液的U