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Abstract
Molecular tweezers built from sawhorse‐type dinuclearruthenium units and carboxyphenyl porphyrin derivatives{5‐(4‐carboxyphenyl)‐10,15,20‐triphenyl‐21H,23H‐porphyrin,[5‐(4‐carboxyphenyl)‐10,15,20‐triphenylporphyrin]zinc, 5,10‐bis(4‐carboxyphenyl)‐15,20‐diphenyl‐21H,23H‐porphyrin, and [5,10‐bis(4‐carboxyphenyl)‐15,20‐diphenylporphyrin]zinc} are presented. Molecular modeling shows that in all cases the two porphyrin moieties are adequately positioned to encapsulate guest molecules. Therefore, the host–guest interactions between the sawhorse‐type tetracarbonyldiruthenium tweezers and different guest molecules [fullerene (C60), pyridine (pyr), 4,4′‐bipyridine (bpy), 1,2‐bis(4‐pyridyl)ethylene (bpe), 5,10‐bis(4‐pyridyl)‐15,20‐diphenyl‐21H,23H‐porphyrin (5,10‐dpp), and 5,15‐bis(4‐pyridyl)‐10,20‐diphenyl‐21H,23H‐porphyrin (5,15‐dpp)] have been studied in solution by using optical spectroscopic methods.
A series of bis(porphyrin) moleculartweezers built from sawhorse‐type tetracarbonyldiruthenium moieties is presented. An excellent binding affinity between5,10‐bis(4‐pyridyl)‐15,20‐diphenyl‐21,23H‐porphyrin and [{Ru2(CO)4(PPh3)2}2(O2CC44H26N4ZnCO2)2] was observed, which opens new possibilities for sawhorse‐type diruthenium complexes.
<!--Unmatched element: w:blockFixed-->| Authors: | Justin P. Johnpeter, John Mohanraj, Nicola Armaroli, Bruno Therrien | |
| Journal: | European Journal of Inorganic Chemistry | |
| Year: | 2012 | |
| Pages: | n/a | |
| DOI: | 10.1002/ejic.201200318 | |
| Publication date: | 06-06-2012 |
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