title: Gallium(III) complexes of methyl pyropheophorbide-a as synthetic models for investigation of diastereomerically controlled axial ligation towards chlorophylls.
abstract: Gallium(III) chlorins possessing a series of axial ligands were synthesized as model compounds of natural chlorophylls. A pair of diastereomers arising from the fifth axial coordination onto the asymmetric chlorin pi-macrocycle could be discriminated in a solution by both (1)H- and (13)C NMR spectroscopies.
authors.affiliation: Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan.
authors.forename: Shin-Ichi
authors.initials: S
authors.lastname: Sasaki
authors.forename: Tadashi
authors.initials: T
authors.lastname: Mizoguchi
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Tamiaki
mesh_terms: D002734:Chlorophyll / Q000737:chemistry*; D005708:Gallium / Q000737:chemistry*; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D015394:Molecular Structure; D011166:Porphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D008024:Ligands; D011166:Porphyrins; C452939:pyropheophorbide-a methylester; D002734:Chlorophyll; D005708:Gallium