Follow-Up Study of <i>Trans</i>-C to <i>Cis</i>-C Thermally or Photochemically Induced Isomerization of Terpyridine Adducts of Cycloruthenated 2-Aryl-2′-pyridine Compounds
作者:Moussa Ali、Yann Cornaton、Jean-Pierre Djukic、Michel Pfeffer
DOI:10.1021/acs.inorgchem.3c03671
日期:2024.3.18
reaction between [Ru(3-acridine-2′-C5H4N-κC,N) (MeCN)4]PF6, 4, and terpy in MeOH/MeCN at 60 °C for 24 h. Similar to 2, the isomerization of 6 to [Ru(3-acridine-2′-C5H4N-κC,N)(MeCN-trans-C) (terpy)]PF6, 7, could be induced thermally (48 h at 60 °C in pure MeOH) or photochemically under UV radiation in MeCN at room temperature. A compound closely related to 7 but in which MeCN was replaced by H2O was
已知2-苯基,吡啶 ( phpy ) 衍生物 [Ru( phpy -κC,N) (MeCN -trans- N)( terpy )]PF 6 , 2异构化为 [Ru( phpy -κC,N) 的机理)(MeCN -trans- C)( terpy )]PF 6 ( terpy = 2,2′;6′,2″-三联吡啶), 3 , 在温度 >50 °C 下已通过1 H NMR 光谱和DFT 计算。室温下 20 小时后,MeCN 中也可定量发生由紫外光引起的2至3的光异构化。对于相关化合物 [Ru(3-acridine-2'-C 5 H 4 N-κC,N)(MeCN -trans- N)(2,2';6', 2″-三联吡啶)]PF 6 , 6 (吖啶=二苯并[ b , e ]吡啶或2,3-苯并喹啉),由[Ru(3-吖啶-2'-C 5 H 4 N)之间的反应获得-κC,N) (MeCN) 4 ]PF 6