Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Channa A. Wijesinghe"'
The research presented in this dissertation discusses the mimicry of primary events in natural photosynthesis via artificial molecular constructs. Photosynthesis involves two major steps, absorption of light by antenna pigments and transfer of the ex
Externí odkaz:
http://hdl.handle.net/10057/5369
Autor:
Mohamed E. El-Khouly, Shunichi Fukuzumi, Francis D'Souza, Channa A. Wijesinghe, Melvin E. Zandler
Publikováno v:
Chemistry - A European Journal. 19:9629-9638
A novel multimodular donor-acceptor polyad featuring zinc porphyrin, fullerene, ferrocene, and triphenylamine entities was designed, synthesized, and studied as a charge-stabilizing, photosynthetic-antenna/reaction-center mimic. The ferrocene and ful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::236b5844d39d407170b8610a8ede876d
https://doi.org/10.1002/chem.201300877
https://doi.org/10.1002/chem.201300877
Autor:
Channa A. Wijesinghe, Shunichi Fukuzumi, Francis D'Souza, Vladimir N. Nesterov, Melvin E. Zandler, Mohamed E. El-Khouly
Publikováno v:
Chemistry - A European Journal. 18:13844-13853
New multi-modular donor- acceptor conjugates featuring zinc por- phyrin (ZnP), catechol-chelated boron dipyrrin (BDP), triphenylamine (TPA) and fullerene (C60), or naphthalenedi- A (NDI) have been newly designed and synthesized as photosynthetic an-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9482d61286937f0dee7dd63951f37561
https://doi.org/10.1002/chem.201202265
https://doi.org/10.1002/chem.201202265
Autor:
Francis D'Souza, Marja Niemi, Navaneetha K. Subbaiyan, Channa A. Wijesinghe, Helge Lemmetyinen, Melvin E. Zandler, Nikolai V. Tkachenko
Publikováno v:
Journal of Porphyrins and Phthalocyanines. 15:391-400
A multimodular donor-acceptor system composed of three triphenylamine entities at the meso-positions of a zinc porphyrin macrocycle and a quinone at the fourth meso-position was newly synthesized and characterized. The triphenylamine entities acted a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4612052cd5a1f3c5f6a088b80ea23d74
https://doi.org/10.1142/s108842461100329x
https://doi.org/10.1142/s108842461100329x
Autor:
Mohamed E. El-Khouly, Navaneetha K. Subbaiyan, Francis D'Souza, Melvin E. Zandler, Mustafa Supur, Shunichi Fukuzumi, Kei Ohkubo, Channa A. Wijesinghe
Publikováno v:
Chemistry – A European Journal. 17:3147-3156
A series of molecular triads, composed of closely positioned boron dipyrrin-fullerene units, covalently linked to either an electron donor (donor(1)-acceptor(1)-acceptor(2)-type triads) or an energy donor (antenna-donor(1)-acceptor(1)-type triads) wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1dbc156799034ec7259a0b11185a3b6
https://doi.org/10.1002/chem.201002446
https://doi.org/10.1002/chem.201002446
Autor:
Francis D'Souza, Navaneetha K. Subbaiyan, Kim Tran, Wlodzimierz Kutner, Ievgen Obraztsov, Channa A. Wijesinghe
Publikováno v:
The Journal of Physical Chemistry C. 113:8982-8989
Photoelectrochemical behavior of self-assembled C60 via axial coordination to an electrochemically polymerized zinc porphyrin film was systematically investigated to unravel the importance of the coordinated fullerene in improving the photocurrent an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::934ab859dbebccfa5c8b61af9b6f32f6
https://doi.org/10.1021/jp900507s
https://doi.org/10.1021/jp900507s
Autor:
Suresh Gadde, Channa A. Wijesinghe, Francis D'Souza, Osamu Ito, Navaneetha K. Subbaiyan, Yasuyuki Araki, Melvin E. Zandler, D.-M. Shafiqul Islam
Publikováno v:
The Journal of Physical Chemistry C. 111:12500-12503
Using a diacetylamidopyridine/uracil complementary hydrogen-bonding motif, a novel bis(zinc porphyrin)−fullerene supramolecular triad is constructed and characterized. The geometry of the triad ded...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b55af01be357766ac87bfcf2953077d
https://doi.org/10.1021/jp073918m
https://doi.org/10.1021/jp073918m
Autor:
Fionnuala Dunne, Channa P Wijesinghe
Publikováno v:
Medical Journal of Australia. 171:414-417
OBJECTIVE To describe the characteristics of and outcome for impaired medical practitioners notified to the Medical Practitioners Board of Victoria. DESIGN Retrospective review of records for all impaired practitioners notified to the Board for the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9880ea39a40f69d60c528f3e0ae96cba
https://doi.org/10.5694/j.1326-5377.1999.tb123721.x
https://doi.org/10.5694/j.1326-5377.1999.tb123721.x
Autor:
Francis D'Souza, Channa A. Wijesinghe, Wlodzimierz Kutner, Serge G. Srour, Krzysztof Noworyta
Publikováno v:
Analytical Chemistry
Two electropolymerizable zinc porphyrins with receptor sites tailor-designed for selective recognition of the nicotine, cotinine, or myosmine alkaloids were synthesized. These were 5-(2-phenoxyacetamide)-10,15,20-tris(triphenylamino)porphyrinato zinc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4cdcc6eeea622c15b7210b9fc431e8a
Autor:
Marja Niemi, Francis D'Souza, Shunichi Fukuzumi, Channa A. Wijesinghe, Melvin E. Zandler, Helge Lemmetyinen, Nikolai V. Tkachenko, Jessica Hudson, Mohamed E. El-Khouly
Publikováno v:
Faraday Discussions.
A self-assembled supramolecular triad as a model to mimic the light-induced events of the photosynthetic antenna-reaction center, that is, ultrafast excitation transfer followed by electron transfer ultimately generating a long-lived charge-separated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b5bc5c474a1be38fbaa02f1ab3d2107
https://doi.org/10.1039/c1fd00045d
https://doi.org/10.1039/c1fd00045d