Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1338345 | Polyhedron | 2007 | 7 Pages |
The coordinating properties of N-o-chlorobenzamido-meso-tetraphenylporphyrin (N-NHCO(o-Cl)C6H4-Htpp; 11) have been investigated for the Zn2+ ion. Insertion of Zn results in the formation of the zinc complex Zn(N-NCO(o-Cl)C6H4-tpp)(MeOH) · MeOH (12 · MeOH). The diamagnetic 12 · MeOH can be transformed into the diamagnetic Zn(N-NHCO(o-Cl)C6H4-tpp)Cl · CH2Cl2 (13 · CH2Cl2) in a reaction with aqueous hydrogen chloride (2%). X-ray structures for 12 · MeOH and 13 · CH2Cl2 have been determined. The coordination sphere around the Zn2+ ion in 12 · MeOH is a distorted trigonal bipyramid with N(2), N(4) and O(2) lying in the equatorial plane, whereas for the Zn2+ ion in 13 · CH2Cl2, it is a square-based pyramid in which the apical site is occupied by the Cl(1) atom.
Graphical abstractThe new complex Zn(N-NHCO(o-Cl)C6H4-tpp)Cl (13) was synthesized by the reaction of Zn(N-NCO(o-Cl)C6H4-tpp)(MeOH) (12) with acid and the coordination sphere around Zn2+ in 13 is described as a square-based pyramid in which the apical site is occupied by Cl(1) atom.Figure optionsDownload full-size imageDownload as PowerPoint slide