title: Synthesis of amino-analogs of bacteriochlorophyll-d and their self-aggregation in an aqueous micelle solution.
abstract: Zinc methyl 3-aminomethyl- and 3-(1-aminoethyl)-pyropheophorbides-a were prepared by modifying naturally occurring chlorophyll-a. The synthetic amino-analogs of bacteriochlorophyll-d self-aggregated in an aqueous micelle solution to give large oligomers with red-shifted and broadened electronic absorption bands. The spectra of these self-aggregates were similar to those of bacteriochlorophyll self-aggregates in the main light-harvesting antennas of green photosynthetic bacteria. The 3(1)-amino groups were alternative to the 3(1)-hydroxy groups in natural bacteriochlorophylls-c/d/e/f.
authors.affiliation: Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan. Electronic address: tamiaki@fc.ritsumei.ac.jp.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Tamiaki
authors.affiliation: Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan.
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Nagai
authors.affiliation: Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Mizutani
authors.affiliation: Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan.
authors.forename: Shinnosuke
authors.initials: S
authors.lastname: Machida
mesh_terms: D000588:Amines / Q000737:chemistry*; D001429:Bacteriochlorophylls / Q000138:chemical synthesis* / Q000737:chemistry*; D008823:Micelles; D015394:Molecular Structure; D012996:Solutions; D014867:Water / Q000737:chemistry*
chemical_list: D000588:Amines; D001429:Bacteriochlorophylls; D008823:Micelles; D012996:Solutions; D014867:Water; C459779:bacteriochlorophyll d
keywords: Chlorosome; J-aggregate; Light-harvesting antenna; Photosynthesis