Synthesis of Double-Bridged Cofacial Nickel Porphyrin Dimers with 2,2'-Bipyridyl Pillars and Their Restricted Coordination Space

Double-bridged cofacial Ni porphyrin dimers with 2,2'-bipyridyl pillars were effectively prepared by a one-step reductive homocoupling reaction of bis(chloropyridyl)-substituted Ni porphyrin derivatives followed by a specific separation of a cyanopropyl-modified silica gel column using pyridine...

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Published inInorganic chemistry Vol. 59; no. 12; pp. 8013 - 8024
Main Authors Satake, Akiharu, Katagami, Yuta, Odaka, Yuki, Kuramochi, Yusuke, Harada, Shohei, Kouchi, Takaya, Kamebuchi, Hajime, Tadokoro, Makoto
Format Journal Article
LanguageEnglish
Published United States 15.06.2020
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Summary:Double-bridged cofacial Ni porphyrin dimers with 2,2'-bipyridyl pillars were effectively prepared by a one-step reductive homocoupling reaction of bis(chloropyridyl)-substituted Ni porphyrin derivatives followed by a specific separation of a cyanopropyl-modified silica gel column using pyridine eluent systems. The structural analyses of and its Pd complex were carried out in their solid and solution states by means of X-ray single crystal analysis and NMR, respectively. The complexation of η -allylpalladium chloride ( ) with on the spatially restricted 2,2-bipyridine moieties on gave a 2:1 ( : ) complex, in which the 2,2'-bipyridine ligands only provided one of the N atoms on a 2,2'-bipyridine ligand to a . Therefore, the 2,2-bipyridine moieties acted as a monodentate ligand.
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ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.0c00177