کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1441032 | 1509388 | 2014 | 5 صفحه PDF | دانلود رایگان |
• A neutral radical was obtained by Cu(I) catalyzed ring-opening and coupling reaction.
• The neutral radical and its sulfate salt display different phosphorescent colors.
• The neutral radical itself exhibits weak antiferromagnetic behavior.
• The sulfate salt radical reveals more complex magnetic behavior.
A novel neutral radical was synthesized from 2,3′-biimidazo[1,2-a]pyridin-2′-one radical via Cu(I) catalyzed ring-opening and carbon–carbon coupling reactions. The neutral radical (green-yellow phosphorescence) and its sulfate salt (blue phosphorescence) display obvious different phosphorescent colors, attributable to their different electronic structures, and stacking structures as demonstrated by powder X-ray diffraction patterns. The neutral radical itself exhibits weak antiferromagnetic property. The sulfate salt radical mainly presents diamagnetism between 58 K and 380 K owing to its dimeric structure, below 58 K, it reveals complex magnetic behavior.
Journal: Synthetic Metals - Volume 189, March 2014, Pages 17–21