A Silver Complex of 6,7-Dicyanodipyridoquinoxaline:π-Stacking Interactions and Luminescence

• 作 者: 陈慧芬 李艳 王明盛 吴阿清 郭国聪 黄锦顺
• 机 构: State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter
• 出 处: 结构化学
• 发表日期: 2008年11期
• 关键词: luminescent stacking packing orthorhombic molar triazine Silver chelating excita

The reaction of 6,7-dicyanodipyridoquinoxaline (DICNQ) with AgNO3 in a 1:1 molar ratio by solution method gave a new complex [Ag(DICNQ)2]NO3 1. Single-crystal X-ray diffraction analysis reveals that the complex crystallizes in the space group Ibca of orthorhombic system with eight formula units in a cell. Crystal data for 1:a=15.7055(17),b=18.411(2),c=20.680(2),V=5979.7(11) 3,Z=8,C32H12AgN13O3,Mr=734.42,Dc=1.632 g/cm3,μ=0.734 mm-1,F(000)=2928,S=1.023 and T=293(2) K. The final R=0.0659 and wR=0.1927 for 2118 observed reflections with I > 2σ(I),and R=0.0801 and wR=0.2196 for all data. The complex builds up a packing structure by π-π stacking interactions and shows a luminescent feature.

The reaction of 6,7-dicyanodipyridoquinoxaline (DICNQ) with AgNO3 in a 1: 1 molar ratio by solution method gave a new complex [Ag (DICNQ) 2] NO3 1. Single-crystal X-ray diffraction analysis reveals that the complex crystallizes in the space group Ibca of orthorhombic system with eight formula units in a cell. Crystal data for 1: a = 15.7055 (17), b = 18.411 (2), c = 20.680 F = (000) = 2928, S = 1.023 and T = 293 (2) K. The final R = 0.0659 and wR = 0.1927 for 2118 observed reflections with I> 2σ (I), and R = 0.0801 and wR = 0.2196 for all data. The complex builds up a packing structure by π-π stacking interactions and shows a luminescent feature.