Výsledky vyhledávání - "Melo, J. Seixas de"

Temperature Dependence of Ultra-Exothermic Charge Recombinations13

Autor: Serpa, Carlos, Gomes, Paulo J. S., Arnaut, Luis G., Melo, J. Seixas de, Formosinho, Sebastião J.

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

We measured the temperature dependence (from +32 to -50 °C) of charge-recombination rates between contact radical ion pairs in isopropyl ether. In the systems selected for this study, aromatic hydrocarbon cations are the electron acceptors and the f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6e601f06fc9311e8244cf5ad64c1604c
https://hdl.handle.net/10316/8237

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Synthesis and H+, Cu2+, and Zn2+ Coordination Behavior of a Bis(fluorophoric) Bibrachial Lariat Aza-Crown

Autor: Clares, M. Paz, Aguilar, Juan, Aucejo, Ricardo, Lodeiro, Carlos, Albelda, M. Teresa, Pina, Fernando, Lima, J. C., Parola, A. Jorge, Pina, João, Melo, J. Seixas de, Soriano, Conxa, García-Espana, Enrique

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

The synthesis, protonation behavior, and Cu2+ and Zn2+ coordination chemistry of the novel bibrachial aza lariat ether (naphthalen-1-ylmethyl)[2-(20-{2-[(naphthalen-1-ylmethyl)amino]ethyl}-3,6,9,17,20,23,29,30-octaazatricyclo[23.3.1.1*11,15*]triacont

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a514886db1ff749c90d45d05f361329f

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Spectroscopic characterization of α- and γ-pyrones and their substituted 4-hydroxy and 4-methoxy derivatives: an integrated infrared, photophysical and theoretical study

Autor: Melo, J. Seixas de, Pina, G. Quinteiro, J., Breda, S., Fausto, R.

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

The simple α- and γ-pyrones and the substituted 6-methyl, 4-hydroxy and 4-methoxy α-pyrones were investigated in relation to their spectroscopic properties. The characterization involves vibrational and electronic spectroscopy. IR spectra for the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e9ea62dd34129fb98a519db27a53c730
https://hdl.handle.net/10316/17726

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Periodical

A fluorescent chemosensor for Zn(ii). Exciplex formation in solution and the solid state

Autor: Bencini, Andrea, Berni, Emanuela, Bianchi, Antonio, Fornasari, Patrizia, Giorgi, Claudia, Lima, João C., Lodeiro, Carlos, Melo, Maria J., Melo, J. Seixas de, Parola, Antonio Jorge, Pina, Fernando, Pina, João, Valtancoli, Barbara

Publikováno v: Dalton Transactions; 2004, Vol. 2004 Issue: 14 p2180-2187, 8p

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Periodical

Long Range Electron Transfer Quenching in Polyamine Chains Bearing a Terminal Naphthalene Unit

Autor: Pina, F., Lima, J. C., Lodeiro, C., Melo, J. Seixas de, Diaz, P., Albelda, M. T., Garcia-Espana, E.

Publikováno v: The Journal of Physical Chemistry - Part A; September 2002, Vol. 106 Issue: 35 p8207-8212, 6p

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Periodical

Energy transfer between polyamine chains bearing naphthalene terminal units and K₃[Co(CN)₆]: an example of a molecular photoreactor

Autor: Arranz, Paloma, Albelda, M^a Teresa, Garcia-España, Enrique, Lima, João C., Lodeiro, Carlos, Melo, J. Seixas de, Parola, A. Jorge, Pina, Fernando

Publikováno v: Journal of the Chemical Society, Dalton Transactions; July 22, 2002, Vol. 2002 Issue: 15 p3024-3028, 5p

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Periodical

Intramolecular Charge Transfer of p-(Dimethylamino)benzethyne: A Case of Nonfluorescent ICT State

Autor: Chattopadhyay, N., Serpa, C., Pereira, M. M., Melo, J. Seixas de, Arnaut, L. G., Formosinho, S. J.

Publikováno v: The Journal of Physical Chemistry - Part A; November 2001, Vol. 105 Issue: 44 p10025-10030, 6p

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Periodical

Comprehensive Investigation of the Photophysical Behavior of Oligopolyfurans

Autor: Melo, J. Seixas de, Elisei, F., Gartner, C., Aloisi, G. G., Becker, R. S.

Publikováno v: The Journal of Physical Chemistry - Part A; August 2000, Vol. 104 Issue: 30 p6907-6911, 5p

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