Intramolecular Energy Transfer in a Covalently Linked Copper(II) Porphyrin−Free Base Porphyrin Dimer:  Novel Spin Polarization in the Energy Acceptor

1999 ◽  
Vol 103 (34) ◽  
pp. 6704-6714 ◽  
Author(s):  
Motoko Asano-Someda ◽  
Art van der Est ◽  
Uwe Krüger ◽  
Dietmar Stehlik ◽  
Youkoh Kaizu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Spin Polarization ◽  
Intramolecular Energy Transfer ◽  
Free Base ◽  
Covalently Linked ◽  
Porphyrin Dimer ◽  
Energy Acceptor

Triplet-triplet energy transfer in a copper(II) porphyrin-free-base porphyrin dimer

1987 ◽  
Vol 91 (16) ◽  
pp. 4269-4273 ◽  
Author(s):  
Osamu. Ohno ◽  
Yoshiharu. Ogasawara ◽  
Motoko. Asano ◽  
Yoshizumi. Kajii ◽  
Youkoh. Kaizu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Free Base ◽  
Triplet Energy ◽  
Triplet Energy Transfer ◽  
Porphyrin Dimer

Photoinduced intramolecular energy transfer in covalently linked chromophore-quencher ruthenium(II) complexes

1991 ◽  
Vol 180 (1-2) ◽  
pp. 28-33 ◽  
Author(s):  
Gaetano Giuffrida ◽  
Giovanni Guglielmo ◽  
Vittorio Ricevuto ◽  
Sebastiano Campagna
Keyword(s):  
Energy Transfer ◽  
Intramolecular Energy Transfer ◽  
Covalently Linked

Energy Transfer in a Supramolecular Complex Assembled via Sapphyrin Dimer-mediated Dicarboxylate Anion Chelation

1998 ◽  
Vol 02 (04) ◽  
pp. 315-325 ◽  
Author(s):  
STACY L. SPRINGS ◽  
ANDREI ANDRIEVSKY ◽  
VLADINÍR KRÁL ◽  
JONATHAN L. SESSLER
Keyword(s):  
Energy Transfer ◽  
Fluoride Anion ◽  
Free Base ◽  
Light Harvesting Complex ◽  
Fluorescence Studies ◽  
H Nmr ◽  
Steady State Fluorescence ◽  
Spectroscopic Analyses ◽  
Affinity Constants ◽  
Covalently Linked

The synthesis of a new terephthalate-strapped porphyrin is described. This porphyrin, prepared in the form of the free base and corresponding zinc(II) complex, was designed to act as the photo-donor portion of a novel, non-covalent artificial light-harvesting complex, the other, acceptor component of which is comprised of a covalently linked sapphyrin dimer. UV-vis and 1 H NMR spectroscopic analyses were used to establish that strong complexes are formed between the porphyrin terephthalate and sapphyrin dimer components (affinity constants on the order of 105 M−1 in dichloromethane). In these complexes the dicarboxylate portion of the strapped porphyrin is sandwiched between two sapphyrins of an individual dimer. Steady state fluorescence studies of the resulting ensembles support the conclusion that, upon photoexcitation of the porphyrin subunit, energy transfer from the porphyrin to the sapphyrin dimer occurs efficiently. This intra-ensemble, anion-chelation-based energy transfer can be inhibited by the addition of fluoride anion.

Intramolecular Energy Transfer within Butadiyne-Linked Chlorophyll and Porphyrin Dimer-Faced, Self-Assembled Prisms

2008 ◽  
Vol 130 (13) ◽  
pp. 4277-4284 ◽  
Author(s):  
Richard F. Kelley ◽  
Suk Joong Lee ◽  
Thea M. Wilson ◽  
Yasuyuki Nakamura ◽  
David M. Tiede ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Intramolecular Energy Transfer ◽  
Self Assembled ◽  
Porphyrin Dimer
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