Publications

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Journal Article
Pina, F, Melo MJ, Bernardo MA, Luis SV, Garcia-Espana E.  1999.  Chemosensors displaying pH controlled multistage fluorescence emission. Journal of Photochemistry and Photobiology a-Chemistry. 126:65-69., Number 1-3 Abstract
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Branco, LC, Serbanovic A, da Ponte MN, Afonso CAM.  2011.  Chiral Guanidinium Ionic Liquids for Asymmetric Dihydroxylation of Olefins with Recycling of the Catalytic System by Supercritical CO2. Acs Catalysis. 1:1408-1413., Number 10 Abstract
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Otero, V, Carlyle L, Vilarigues M, Melo MJ.  2012.  Chrome yellow in nineteenth century art: historic reconstructions of an artists' pigment. Rsc Advances. 2:1798-1805., Number 5 Abstract
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Gavara, R, Petrov V, Quintas A, Pina F.  2013.  Circular dichroism of anthocyanidin 3-glucoside self-aggregates. Phytochemistry. 88:92-98. Abstract
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Branco, LC, Serbanovic A, da Ponte MN, Afonso CAM.  2005.  Clean osmium-catalyzed asymmetric dihydroxylation of olefins in ionic liquids and supercritical CO2 product recovery. Chemical Communications. :107-109., Number 1 Abstract
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Paulo, PMR, Laia CAT, Costa SMB.  2003.  Clusters in polymer-surfactant AOT microemulsions probed by excited state quenching kinetics. Journal of Physical Chemistry B. 107:1097-1105., Number 4 Abstract
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Carrera, GVSM, Jordao N, Branco LC, da Ponte MN.  2015.  CO2 capture and reversible release using mono-saccharides and an organic superbase. Journal of Supercritical Fluids. 105:151-157. Abstract
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Carrera, GVSM, Jordao N, Branco LC, da Ponte MN.  2015.  CO2 capture and reversible release using mono-saccharides and an organic superbase, 2015. Journal of Supercritical Fluids. 105:151-157. Abstract
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Carrera, GVSM, Jordao N, Branco LC, da Ponte MN.  2015.  CO2 capture systems based on saccharides and organic superbases, 2015. Faraday Discussions. 183:429-444. Abstract
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Sousa, A, Cabrita L, Araujo P, Mateus N, Pina F, de Freitas V.  2014.  Color stability and spectroscopic properties of deoxyvitisins in aqueous solution. New Journal of Chemistry. 38:539-544., Number 2 Abstract
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Sousa, A, Cabrita L, Araujo P, Mateus N, Pina F, de Freitas V.  2014.  Color stability and spectroscopic properties of deoxyvitisins in aqueous solution. New Journal of Chemistry. 38:539-544., Number 2 Abstract
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Lima, JC, Vautier-Giongo C, Lopes A, Melo E, Quina FH, Macanita AL.  2002.  Color stabilization of anthocyanins: Effect of SDS micelles on the acid-base and hydration kinetics of malvidin 3-glucoside (Oenin). Journal of Physical Chemistry a. 106:5851-5859., Number 24 Abstract
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Houbiers, C, Lima JC, Macanita AL, Santos H.  1998.  Color stabilization of malvidin 3-glucoside: Self-aggregation of the flavylium cation and copigmentation with the Z-chalcone form. Journal of Physical Chemistry B. 102:3578-3585., Number 18 Abstract
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Melo, MJ, Araujo R, Castro R, Casanova C.  2016.  Colour degradation in medieval manuscripts, 2016. Microchemical Journal. 124:837-844. Abstract
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Miguel, C, Lopes JA, Clarke M, Melo MJ.  2012.  Combining infrared spectroscopy with chemometric analysis for the characterization of proteinaceous binders in medieval paints. Chemometrics and Intelligent Laboratory Systems. 119:32-38. Abstract
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Castro, R, Pozzi F, Leona M, Melo MJ.  2014.  Combining SERS and microspectrofluorimetry with historically accurate reconstructions for the characterization of lac dye paints in medieval manuscript illuminations. Journal of Raman Spectroscopy. 45:1172-1179., Number 11-12 Abstract
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Kulkarni, PS, Branco LC, Crespo JG, Afonso CAM.  2007.  A comparative study on absorption and selectivity of organic vapors by using ionic liquids based on imidazolium, quaternary ammonium, and guanidinium cations. Chemistry-a European Journal. 13:8470-8477., Number 30 Abstract
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Monteiro, B, Balula SS, Gago S, Grosso C, Figueiredo S, Lopes AD, Valente AA, Pillinger M, Lourenco JP, Goncalves IS.  2009.  Comparison of liquid-phase olefin epoxidation catalysed by dichlorobis-(dimethylformamide)dioxomolybdenum(VI) in homogeneous phase and grafted onto MCM-41. Journal of Molecular Catalysis a-Chemical. 297:110-117., Number 2 Abstract
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Kulkarni, PS, Branco LC, Crespo JG, Nunes CM, Raymundo A, Afonso CAM.  2007.  Comparison of physicochemical properties of new ionic liquids based on imidazolium, quaternary ammonium, and guanidinium cations. Chemistry-a European Journal. 13:8478-8488., Number 30 Abstract
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Pessego, M, Basilio N, Muniz MC, Garcia-Rio L.  2016.  Competitive counterion complexation allows the true host : guest binding constants from a single titration by ionic receptors, 2016. Organic & Biomolecular Chemistry. 14(27):6442-6448. Abstract
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Petrov, V, Pina F.  2012.  Complete resolution of the reaction Rates of flavylium Networks. The role played by 2-phenyl-2H-chromen-4-ol and the hydroxyl attack to the quinoidal Base. Journal of Mathematical Chemistry. 50:1003-1019., Number 4 Abstract
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Moncada, MC, Moura S, Melo MJ, Roque A, Lodeiro C, Pina F.  2003.  Complexation of aluminum(III) by anthocyanins and synthetic flavylium salts - A source for blue and purple color. Inorganica Chimica Acta. 356:51-61. Abstract
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Basilio, N, Gago S, Parola AJ, Pina F.  2017.  Contrasting pK(a) Shifts in Cucurbit 7 uril Host-Guest Complexes Governed by an Interplay of Hydrophobic Effects and Electrostatic Interactions, 2017. Acs Omega. 2(1):70-75. Abstract
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Huang, RJ, Avo J, Northey T, Chaning-Pearce E, dos Santos PL, Ward JS, Data P, Etherington MK, Fox MA, Penfold TJ, Berberan-Santos MN, Lima JC, Bryce MR, Dias FB.  2017.  The contributions of molecular vibrations and higher triplet levels to the intersystem crossing mechanism in metal-free organic emitters, 2017. Journal of Materials Chemistry C. 5(25):6269-6280. Abstract
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Sotomayor, J, Parola AJ, Pina F, Zinato E, Riccieri P, Manfrin MF, Moggi L.  1995.  Control of the thermal and photochemical aquation of the hexacyanochromate(III) and aquapentacyanochromate(III) ions by formation of a supramolecular structure with 32 ane-N-8, 1995. Inorganic Chemistry. 34:6532-6537. Abstract

The thermal aquation rate constant and the photoaquation quantum yield of [Cr(CN)(6)](3-) are reduced by a factor of 40 and 3, respectively, when the complex forms a 1:1 adduct with the protonated form of the polyaza macrocycle [32]ane-N-8. On the other hand, the same macrocycle has practically no effect on the photoaquation of [Cr(CN)(5)(H2O)](2-) and a very small effect on the thermal reaction of this complex. These results are discussed in relation to the thermal and photochemical reaction mechanisms and to the steric configuration of the adducts between complexes and macrocycle.