Hitoshi Tamiaki
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Hitoshi Tamiaki has a total of 10 co-authors. Here are the top co-authors by number of shared publications:
Kurt Schaffner
Max-Planck-Institut für Strahlenchemie, Postfach 10 13 65, D-45413 Mülheim an der Ruhr (Germany) Fax: Int. code +(208)306-3951
3 shared publications- Alfred R. Holzwarth
Max-Planck-Institut für Strahlenchemie, Postfach 10 13 65, D-45413 Mülheim an der Ruhr (Germany) Fax: Int. code +(208)306-3951
2 shared publications Rikukei Tanikaga
Department of Bioscience and Biotechnology Faculty of Science and Engineering, Ritsumeikan University Kusatsu, Shiga 525-77 (Japan) Fax: Int. code +(775)612-659
2 shared publicationsAlfred R. Holzwarth
Max Planck Institut fur Strahlenchemie, Mulheim an der Ruhr, Germany
1 shared publication- Masaaki Amakawa
Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga, Japan
1 shared publication Rikuhei Tanikaga
Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga, Japan
1 shared publication
Latest Publications
- 1 January 1998
- Published by Wiley in Photochemistry and Photobiology
- Vol. 67 (3) , 295-303
Molecular Requirement of Chlorosomal Chlorophylls. Self-Organization of a Chlorophyll Derivative Possessing a Hydroxyl Group at Ring II
- 1 January 1998
- Published by Wiley in Photochemistry and Photobiology
- Vol. 67 (3) , 295-303
Molecular Requirement of Chlorosomal Chlorophylls. Self-Organization of a Chlorophyll Derivative Possessing a Hydroxyl Group at Ring II
- 19 April 1996
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 35 (7) , 772-774
Self‐Assembly of an Artificial Light‐Harvesting Antenna: Energy Transfer from a Zinc Chlorin to a Bacteriochlorin in a Supramolecular Aggregate
- 19 April 1996
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 35 (7) , 772-774
Self‐Assembly of an Artificial Light‐Harvesting Antenna: Energy Transfer from a Zinc Chlorin to a Bacteriochlorin in a Supramolecular Aggregate
- 3 April 1996
- Published by Wiley in Angewandte Chemie
- Vol. 108 (7) , 810-812
Selbstorganisation einer künstlichen Lichtsammel‐Antenne: Energieübertragung von einem zinkhaltigen Chlorin auf ein Bacteriochlorin in einem supramolekularen Aggregat
Schnell und effizient ist der Energietransfer zwischen den lichtsammelnden aggregierten Zinkchlorinen und einer aus einem Zinkchlorin‐ und einem metallfreien Bacteriochlorin‐Chromophor bestehenden coaggregierten Verbindung. Bei diesem ersten Beispiel für eine funktionale selbstorganisierte Lichtsammel‐Antenne wird die von vielen Donormolekülen absorbierte Lichtenergie intra‐supramolekular auf ein Acceptormolekül übertragen (siehe schematische Darstellung unten). magnified image
- 3 April 1996
- Published by Wiley in Angewandte Chemie
- Vol. 108 (7) , 810-812
Selbstorganisation einer künstlichen Lichtsammel‐Antenne: Energieübertragung von einem zinkhaltigen Chlorin auf ein Bacteriochlorin in einem supramolekularen Aggregat
Schnell und effizient ist der Energietransfer zwischen den lichtsammelnden aggregierten Zinkchlorinen und einer aus einem Zinkchlorin‐ und einem metallfreien Bacteriochlorin‐Chromophor bestehenden coaggregierten Verbindung. Bei diesem ersten Beispiel für eine funktionale selbstorganisierte Lichtsammel‐Antenne wird die von vielen Donormolekülen absorbierte Lichtenergie intra‐supramolekular auf ein Acceptormolekül übertragen (siehe schematische Darstellung unten). magnified image
- 2 January 1996
- Published by Wiley in Photochemistry and Photobiology
- Vol. 63 (1) , 92-99
Synthetic Zinc and Magnesium Chlorin Aggregates as Models for Supramolecular Antenna Complexes in Chlorosomes of Green Photosynthetic Bacteria
Abstract— A comparison of the spectra of in vitro (3‐hydroxymethyl‐131‐oxometallochlorin) and in vivo chlorosomal (bacterio‐chlorophyll‐c) aggregates suggests a similar supramolecular structure for the artificial oligomers and the bacte‐riochlorophyll‐c aggregates in the extramembranous antenna complexes (chlorosomes) of green photosynthetic bacteria. Synthetic zinc and magnesium chlorins have been found to aggregate in 1 % (vol/vol) tetrahydrofuran and hexane solutions and in thin films to form oligomers with the Qy absorption bands shifted to longer wavelengths by about 1900 (Zn chlorins) and 2100 cm−1 (Mg) relative to the corresponding monomer bands. Visible absorption and circular dichroism spectra of various zinc chlorins establish that a central metal, a 31‐hydroxy and a 131‐keto group are functional prerequisites for the aggregation. Vibrational bands measured by IR spectroscopy of solid films reveal two characteristic structural features of the oligomers: (1) a five‐coordinated metallochlorin macrocycle with an axial ligand (bands at 1500‐1630 cm−1), and (2) a hydrogen bond between the keto oxygen of one chlorin and the hydroxy group of a second chlorin, the oxygen of which is chelated to the metal atom of a third molecule, i.e. C=O…H‐O…M (=Zn or Mg).
- 2 January 1996
- Published by Wiley in Photochemistry and Photobiology
- Vol. 63 (1) , 92-99
Synthetic Zinc and Magnesium Chlorin Aggregates as Models for Supramolecular Antenna Complexes in Chlorosomes of Green Photosynthetic Bacteria
Abstract— A comparison of the spectra of in vitro (3‐hydroxymethyl‐131‐oxometallochlorin) and in vivo chlorosomal (bacterio‐chlorophyll‐c) aggregates suggests a similar supramolecular structure for the artificial oligomers and the bacte‐riochlorophyll‐c aggregates in the extramembranous antenna complexes (chlorosomes) of green photosynthetic bacteria. Synthetic zinc and magnesium chlorins have been found to aggregate in 1 % (vol/vol) tetrahydrofuran and hexane solutions and in thin films to form oligomers with the Qy absorption bands shifted to longer wavelengths by about 1900 (Zn chlorins) and 2100 cm−1 (Mg) relative to the corresponding monomer bands. Visible absorption and circular dichroism spectra of various zinc chlorins establish that a central metal, a 31‐hydroxy and a 131‐keto group are functional prerequisites for the aggregation. Vibrational bands measured by IR spectroscopy of solid films reveal two characteristic structural features of the oligomers: (1) a five‐coordinated metallochlorin macrocycle with an axial ligand (bands at 1500‐1630 cm−1), and (2) a hydrogen bond between the keto oxygen of one chlorin and the hydroxy group of a second chlorin, the oxygen of which is chelated to the metal atom of a third molecule, i.e. C=O…H‐O…M (=Zn or Mg).