Zinc 7,8-Dihydroxylated Chlorophyll-a Derivative as a Synthetic Model of Natural Bacteriochlorophyll-a

2020 ◽  
Vol 49 (11) ◽  
pp. 1403-1405
Author(s):  
Daichi Funakoshi ◽  
Yosaku Nomura ◽  
Sunao Shoji ◽  
Hitoshi Tamiaki
Keyword(s):  
Chlorophyll A ◽  
Bacteriochlorophyll A ◽  
Synthetic Model

scholarly journals From chlorophyll a towards bacteriochlorophyll a: Excited-state processes of modified pigments

1994 ◽  
Vol 60-61 ◽  
pp. 520-522 ◽  
Author(s):  
K. Teuchner ◽  
H. Stiel ◽  
D. Leupold ◽  
I. Katheder ◽  
H. Scheer
Keyword(s):  
Excited State ◽  
Chlorophyll A ◽  
Bacteriochlorophyll A

scholarly journals Transient Raman Spectroscopy of Isotope-Substituted Species of Bacteriochlorophyll a, Bacteriopheophytin a And Chlorophyll a: Changes in the Bond Orders in the Macrocycles Upon Triplet and Singlet Excitation

1999 ◽  
Vol 19 (1-4) ◽  
pp. 187-190
Author(s):  
Yasushi Koyama ◽  
Leenawaty Limantara ◽  
Tokutake Sashima
Keyword(s):  
Raman Spectroscopy ◽  
Isotopic Composition ◽  
Chlorophyll A ◽  
Raman Spectra ◽  
Natural Abundance ◽  
Bacteriochlorophyll A ◽  
Bond Orders ◽  
Bacteriopheophytin A

The S0, T1 and S1 Raman spectra of bacteriochlorophyll a, bacteriopheophytin a and chlorophyll a were recorded for the species of natural abundance isotopic composition and those of totally substituted with 15N, 13C and 2H isotopes. Based on empirical assignments of the Raman lines, changes in the bond orders in the macrocycle upon triplet and singlet excitation are discussed.

Early diagenetic alteration of chlorophyll-a and bacteriochlorophyll-a in a contemporaneous marl ecosystem; Florida Bay

2000 ◽  
Vol 31 (12) ◽  
pp. 1561-1580 ◽  
Author(s):  
J William Louda ◽  
Joseph W Loitz ◽  
David T Rudnick ◽  
Earl W Baker
Keyword(s):  
Chlorophyll A ◽  
Florida Bay ◽  
Bacteriochlorophyll A ◽  
Diagenetic Alteration

Synthesis of chlorin and bacteriochlorin conjugates for photodynamic and boron neutron capture therapy

2008 ◽  
Vol 12 (11) ◽  
pp. 1163-1172 ◽  
Author(s):  
Andrey F. Mironov ◽  
Mikhail A. Grin
Keyword(s):  
Chlorophyll A ◽  
Boron Neutron Capture Therapy ◽  
Neutron Capture ◽  
Synthetic Methods ◽  
Bacteriochlorophyll A ◽  
Neutron Capture Therapy ◽  
Biological Testing ◽  
Boron Neutron Capture

The review summarizes the synthesis and study of properties of the bioconjugates of chlorophyll a and bacteriochlorophyll a with carbohydrates, carboranes and other moieties, focusing on the synthetic methods of obtaining conjugates and preliminary biological testing thereof. Boronated chlorins and bacteriochlorins can be used in both photodynamic and boron neutron capture therapy.

Quantized Diameters in Self-assembled Cyundrical Aggregates of Chlorophylls

1989 ◽  
Vol 174 ◽  
Author(s):  
D. L. Worcester ◽  
T. J. Michalski ◽  
M. K. Bowman ◽  
J. J. Katz
Keyword(s):  
Neutron Scattering ◽  
Chlorophyll A ◽  
Strong Evidence ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Bacteriochlorophyll A ◽  
Angle Scattering ◽  
Scattering Measurements ◽  
Hollow Cylinders ◽  
Neutron Small Angle Scattering

AbstractNeutron small-angle scattering measurements of several different chlorophylls hydrated in deuterated octane-toluene mixtures show that long, hollow cylinders of aggregated chlorophyll are formed. Clear secondary maxima are present in the scattering, and the cylinder diameters are well determined, but depend on the type of chlorophyll. Chlorophyll-a and Bacteriochlorophyll-a were particularly studied, and several samples of each have been measured. Other chlorophylls have also been studied. The results provide strong evidence that chlorophyll cylinders are only certain sizes, with diameters very nearly in the ratio of small integers. Thus, the cylinder diameters appear to be quantized. Neutron scattering results that further test this quantization property are presented here, together with a proposal for the stereochemical features of chlorophyll aggregation which account for the diameter quantization.

Sign in / Sign up

Export Citation Format

Share Document