Safety of 4-(p-Tolyl)-2,2:6,2-terpyridine. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about 4′-(4-Methylphenyl)-2,2′:6′,2”-terpyridine. Author is Liu, Han-Guo; Qiu, Yong-Cai; Wu, Jian-Zhong.
There are two crystallog. independent mols. in the asym. unit of the title compound, C22H17N3. In each mol., the three pyridyl groups are nearly coplanar, whereas the tolyl groups are twisted out of the plane of the attached pyridyl rings by ∼28°. The mol. components are assembled through C-H···π and π-π interactions [centroid-centroid distances are 3.677(4) and 3.707(7) Å] into a 1-dimensional chain running in the a-axis direction. Crystallog. data and at. coordinates are given.
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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI