Photolabile Ru Model Complexes with Chelating Diimine Ligands for Light‐Triggered Drug Release
作者:Federica Battistin、Gabriele Balducci、Jianhua Wei、Anna K. Renfrew、Enzo Alessio
DOI:10.1002/ejic.201701392
日期:2018.4.9
of this issue is the group of Enzo Alessio, University of Trieste, Italy, collaborating with the group of Anna Renfrew, University of Sydney, Australia. The cover image shows how a drug “chained” to an inert Rucomplex can be photo-released upon illumination.
意大利的里雅斯特大学的 Enzo Alessio 小组与澳大利亚悉尼大学的 Anna Renfrew 小组合作,为本期杂志的封面。封面图片显示了“链接”到惰性 Ru 复合物的药物如何在光照下光释放。
New Insight into a Deceptively Simple Reaction: The Coordination of bpy to Ru
<sup>II</sup>
–Carbonyl Precursors – The Central Role of the
<i>fac</i>
‐[Ru(bpy)Cl(CO)
<sub>3</sub>
]
<sup>+</sup>
Intermediate and the
<i>Chloride Rebound</i>
Mechanism
)2] (P3) and fac-[RuCl2(CO)3(dmso-O)] (P4) – which can be considered as “activated forms” of P2 and P1, respectively – towards the coordination of bpy. Compounds P3 and P4 allowed us to gain new mechanistic insight and a deeper level of understanding. In particular, we found that coordination of bpy to P4 (or P1) generates first the tricarbonyl cation fac-[Ru(bpy)Cl(CO)3]+. This key intermediate undergoes
and cis-RuCl2(PTA)4 (15, 16) isomers with CO, afforded only one new Ru(II)-PTA carbonyl, the cationic species cis-[RuCl(CO)(PTA)4]Cl (17). In general, the choice of the solvent was very relevant for obtaining the products with high yield and purity. We were unable to isolate Ru(II)-PTA compounds with more than two carbonyls. The thermodynamically preferred species have CO trans to Cl and two mutually
Stepwise Assembly of Unsymmetrical Supramolecular Arrays Containing Porphyrins and Coordination Compounds
作者:Enzo Alessio、Enrica Ciani、Elisabetta Iengo、Vadim Yu. Kukushkin、Luigi G. Marzilli
DOI:10.1021/ic990709a
日期:2000.4.1
The stepwise coordination of meso-4'-pyridyl/phenyl porphyrins (4'-PyPs) to different metal centers proved to be an efficient synthetic approach leading to unsymmetrical arrays containing porphyrins and coordination compounds. The first step of this process, treatment of 4'-PyPs with a less than stoichiometric amount of cis,fac-RuCl2(Me2-SO)3(CO) (1), leads to the selective coordination of [cis,cis
Treatment of the octahedral Ru(II) complex [trans,cis,cis-RuCl(2)(DMSO-O)(2)(CO)(2)] with an equimolar amount of 5,10-bis(3'-pyridyl)-15,20-diphenylporphyrin (3'-cis-DPyP) yielded, upon selective replacement of the DMSO ligands, the neutral 2 + 2 metallacycle 2. NMR spectroscopy provided unambiguous evidence that only one highly symmetrical species, in which the two chromophores are held in a slipped