Accessing Near-Infrared-Absorbing BF<sub>2</sub>-Azadipyrromethenes via a Push–Pull Effect
                                
                                    
                                        作者:Lijuan Jiao、Yayang Wu、Sufan Wang、Xiaoke Hu、Ping Zhang、Changjiang Yu、Kebing Cong、Qianli Meng、Erhong Hao、M. Graça H. Vicente                                    
                                    
                                        DOI:10.1021/jo402160b
                                    
                                    
                                        日期:2014.2.21
                                    
                                    Novel aza-BODIPYs with significant bathochromic shifts were designed and synthesized by installation of strong electron-withdrawing groups on the para-positions of 1,7-phenyls and electron-donating groups on the para-positions of 3,4-phenyls. These dyes show strong NIR fluorescence emissions up to 756 nm, and absorptions up to 720 nm.