• 5498 Citations
  • 40 h-Index
1988 …2019
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Research Output at NOVA 1988 2019

2019
2 Citations (Scopus)

Catechol versus carboxyl linkage impact on DSSC performance of synthetic pyranoflavylium salts

Pinto, A. L., Cruz, L., Gomes, V., Cruz, H., Calogero, G., de Freitas, V., Pina, F., Parola, A. J. & Lima, J. C., 1 Nov 2019, In : Dyes and Pigments. 170, 107577.

Research output: Contribution to journalArticle

Coloring Agents
Dyes
Salts
Anthocyanins
Electron injection

Chapter 2: Chemistry of Anthocyanins

Pina, F., Parola, A. J., Melo, M. J., Lima, J. C. & Freitas, V. D., 1 Jan 2019, Steviol Glycosides: Cultivation, Processing, Analysis and Applications in Food. Brooks, M. S-L. & Celli, G. B. (eds.). 12 ed. Royal Society of Chemistry, p. 34-76 43 p. (Food Chemistry, Function and Analysis; vol. 2019-January, no. 12).

Research output: Chapter in Book/Report/Conference proceedingChapter

Anthocyanins
anthocyanins
chemistry
Thermodynamics
thermodynamics
2 Citations (Scopus)

Generalization of the anthocyanins kinetics and thermodynamics multistate to 2,6-bis(2-hydroxybenzylidene)cyclohexanones

Alejo-Armijo, A., Moro, A. J., Parola, A. J., Lima, J. C., Pina, F., Corici, L., Shova, S. & Cseh, L., 1 Apr 2019, In : Dyes and Pigments. 163, p. 573-588 16 p.

Research output: Contribution to journalArticle

Cyclohexanones
Anthocyanins
Thermodynamics
Chalcone
Kinetics

Intrinsically Electrochromic Deep Eutectic Solvents

Cruz, H., Jordão, N., Dionísio, M., Pina, F. & Branco, L. C., 31 Jan 2019, In : ChemistrySelect. 4, 4, p. 1530-1534 5 p.

Research output: Contribution to journalArticle

Viologens
Eutectics
Ethylene Glycol
Derivatives
Electrodes
Cyclohexanones
Chalcone
Cations
Positive ions
Amines
2 Citations (Scopus)
7 Downloads (Pure)
Open Access
File
Anthocyanins
Chalcone
Isomerization
Cations
Rate constants
1 Citation (Scopus)

Purple-fleshed sweet potato acylated anthocyanins: Equilibrium network and photophysical properties

Oliveira, H., Basílio, N., Pina, F., Fernandes, I., de Freitas, V. & Mateus, N., 1 Aug 2019, In : Food Chemistry. 288, p. 386-394 9 p.

Research output: Contribution to journalArticle

Ipomoea batatas
Anthocyanins
sweet potatoes
anthocyanins
glucosides
2018
5 Citations (Scopus)

Achieving Complexity at the Bottom. 2,6-Bis(arylidene) cyclohexanones and Anthocyanins: The Same General Multistate of Species

Alejo-Armijo, A., Corici, L., Cseh, L., Aparaschivei, D., Moro, A. J., Jorge Parola, A., Lima, J. C. & Pina, F., 19 Dec 2018, In : ACS Omega. 3, 12, p. 17853-17862

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)
16 Downloads (Pure)

Colour modulation of blue anthocyanin-derivatives. Lignosulfonates as a tool to improve the water solubility of natural blue dyes

Araújo, P., Basílio, N., Azevedo, J., Fernandes, A., Mateus, N., Pina, F., de Freitas, V. & Oliveira, J., 1 Jun 2018, In : Dyes and Pigments. 153, p. 150-159 10 p.

Research output: Contribution to journalArticle

File
Anthocyanins
Coloring Agents
Dyes
Solubility
Modulation
4 Citations (Scopus)
1 Downloads (Pure)

Extending the stability of red and blue colors of malvidin-3-glucoside-lipophilic derivatives in the presence of SDS micelles

Mendoza, J., Pina, F., Basílio, N., Guimarães, M., de Freitas, V. & Cruz, L., 1 Apr 2018, In : Dyes and Pigments. 151, p. 321-326 6 p.

Research output: Contribution to journalArticle

File
Anthocyanins
Sodium dodecyl sulfate
Micelles
Sodium Dodecyl Sulfate
Bearings (structural)
2 Citations (Scopus)

Highly Photoluminescent Sulfide Clusters Confined in Zeolites

Ruivo, A., Coutino-Gonzalez, E., Santos, M. M., Baekelant, W., Fron, E., Roeffaers, M. B. J., Pina, F., Hofkens, J. & Laia, C. A. T., 5 Jul 2018, In : Journal of Physical Chemistry C. 122, 26, p. 14761-14770 10 p.

Research output: Contribution to journalArticle

Zeolites
Sulfides
Quantum efficiency
zeolites
sulfides
1 Citation (Scopus)

Impact of Lignosulfonates on the Thermodynamic and Kinetic Parameters of Malvidin-3- O-glucoside in Aqueous Solutions

Araújo, P., Basílio, N., Fernandes, A., Mateus, N., Freitas, V. D., Pina, F. & Oliveira, J., 27 Jun 2018, In : Journal of Agricultural and Food Chemistry. 66, 25, p. 6382-6387 6 p.

Research output: Contribution to journalArticle

lignosulfonates
malvidin
Glucosides
Thermodynamics
Kinetic parameters
2 Citations (Scopus)
1 Downloads (Pure)

New insights into iron-gall inks through the use of historically accurate reconstructions

Díaz Hidalgo, R. J., Córdoba, R., Nabais, P., Silva, V., Melo, M. J., Pina, F., Teixeira, N. & Freitas, V., 1 Dec 2018, In : Heritage Science. 6, 1, 63.

Research output: Contribution to journalArticle

Open Access
File
reconstruction
seventeenth century
performance
Iron
Ink
1 Citation (Scopus)

On the multistate of 2′-hydroxyflavylium-flavanone system. Illustrating the concept of a timer with reset at the molecular level

Slavcheva, S., Mendoza, J., Stanimirov, S., Petkov, I., Basílio, N., Pina, F. & Petrov, V., 1 Nov 2018, In : Dyes and Pigments. 158, p. 465-473 9 p.

Research output: Contribution to journalConference article

Chalcone
Positive ions
Cations
Acidification
Thermodynamics
9 Citations (Scopus)

Rationalizing the Color in Heavenly Blue Anthocyanin: A Complete Kinetic and Thermodynamic Study

Mendoza, J., Basílio, N., Pina, F., Kondo, T. & Yoshida, K., 17 May 2018, In : Journal of Physical Chemistry B. 122, 19, p. 4982-4992 11 p.

Research output: Contribution to journalArticle

Anthocyanins
Equilibrium constants
Chromophores
sugars
Sugars
4 Citations (Scopus)
Open Access
Electrochromic devices
Ionic Liquids
Ionic liquids
Eutectics
Electrolytes
1 Citation (Scopus)

Thermodynamic Stability of Flavylium Salts as a Valuable Tool to Design the Synthesis of A-Type Proanthocyanidin Analogues

Alejo-Armijo, A., Parola, A. J., Pina, F., Altarejos, J. & Salido, S., 5 Oct 2018, In : Journal of Organic Chemistry. 83, 19, p. 12297-12304 8 p.

Research output: Contribution to journalArticle

Thermodynamic stability
Salts
Nucleophiles
Phloroglucinol
Catechin
2017
7 Citations (Scopus)

2,2′-Spirobis[chromene] Derivatives Chemistry and Their Relation with the Multistate System of Anthocyanins

Moro, A. J., Parola, A. J., Pina, F., Pana, A. M., Badea, V., Pausescu, I., Shova, S. & Cseh, L., 19 May 2017, In : Journal of Organic Chemistry. 82, 10, p. 5301-5309 9 p.

Research output: Contribution to journalArticle

Open Access
Benzopyrans
Anthocyanins
Derivatives
Chemical reactions
Photoisomerization
3 Citations (Scopus)

Binding of the five multistate species of the anthocyanin analog 7-β-D-glucopyranosyloxy-4′-hydroxyflavylium to the β-cyclodextrin derivative captisol

Mendoza, J., Basílio, N., Dangles, O., Mora, N., Al Bittar, S. & Pina, F., 1 Aug 2017, In : Dyes and Pigments. 143, p. 479-487 9 p.

Research output: Contribution to journalArticle

Anthocyanins
Cyclodextrins
Rate constants
Equilibrium constants
Derivatives
2 Citations (Scopus)

Bis(bipyridinium) Salts as Multicolored Electrochromic Devices

Jordão, N., Cruz, H., Branco, A., Pina, F. & Branco, L. C., 1 Sep 2017, In : CHEMPLUSCHEM. 82, 9, p. 1211-1217 7 p.

Research output: Contribution to journalArticle

Electrochromic devices
Salts
Ionic Liquids
Iodides
Anions
11 Citations (Scopus)
Bearings (structural)
Protonation
Coulomb interactions
Complexation
Stabilization
2 Citations (Scopus)
cyclodextrins
Enantiomers
enantiomers
Cyclodextrins
Chalcone
8 Citations (Scopus)

Electronic and charge transfer properties of bio-inspired flavylium ions for applications in TiO2-based dye-sensitized solar cells

Calogero, G., Citro, I., Di Marco, G., Caramori, S., Casarin, L., Bignozzi, C. A., Avó, J., Jorge Parola, A. & Pina, F., 1 Sep 2017, In : Photochemical and Photobiological Sciences. 16, 9, p. 1400-1414 15 p.

Research output: Contribution to journalArticle

Open Access
Charge transfer
Coloring Agents
solar cells
dyes
charge transfer
3 Citations (Scopus)
Open Access
Micelles
Chalcone
Chemical reactions
Thermodynamics
Anthocyanins
2 Citations (Scopus)
Chalcone
Micelles
Derivatives
Cations
Water
6 Citations (Scopus)

Influence of the structural features of amino-based pyranoanthocyanins on their acid-base equilibria in aqueous solutions

Oliveira, J., Araújo, P., Fernandes, A., Brás, N. F., Mateus, N., Pina, F. & de Freitas, V., 1 Jun 2017, In : Dyes and Pigments. 141, p. 479-486 8 p.

Research output: Contribution to journalArticle

Pigments
Deprotonation
Protonation
Cations
Positive ions
6 Citations (Scopus)

Synthesis and equilibrium multistate of new pyrano-3-deoxyanthocyanin-type pigments in aqueous solutions

Sousa, J. L. C., Gomes, V., Mateus, N., Pina, F., de Freitas, V. & Cruz, L., 1 Jan 2017, In : Tetrahedron. 73, 41, p. 6021-6030 10 p.

Research output: Contribution to journalArticle

Acid-Base Equilibrium
Wine
Pigments
Cations
Spectrum Analysis
4 Citations (Scopus)

Unveiling the 6,8-Rearrangement in 8-Phenyl-5,7-dihydroxyflavylium and 8-Methyl-5,7-dihydroxyflavylium through Host–Guest Complexation

Basílio, N., Lima, J. C., Cruz, L., de Freitas, V., Pina, F., Ando, H., Kimura, Y., Oyama, K. I. & Yoshida, K., 10 Oct 2017, In : European Journal of Organic Chemistry. 2017, 37, p. 5617-5626 10 p.

Research output: Contribution to journalArticle

Complexation
Isomers
isomers
Chalcone
Cations
2016
3 Citations (Scopus)

A blue 4′,7-diaminoflavylium cation showing an extended pH range stability

Tron, A., Gago, S., McClenaghan, N. D., Parola, A. J. & Pina, F., 7 Apr 2016, In : Physical Chemistry Chemical Physics. 18, 13, p. 8920-8925 6 p.

Research output: Contribution to journalArticle

Open Access
Electron energy levels
Cations
energy levels
cations
diagrams
8 Citations (Scopus)

A multiproxy approach to evaluate biocidal treatments on biodeteriorated majolica glazed tiles

Coutinho, M. L., Miller, A. Z., Martin-Sanchez, P. M., Mirão, J., Gomez-Bolea, A., Machado-Moreira, B., Cerqueira-Alves, L., Jurado, V., Saiz-Jimenez, C., Lima, A., Phillips, A. J. L., Pina, F. & Dinis, M. F. M. A. D. M., Dec 2016, In : Environmental Microbiology.

Research output: Contribution to journalArticle

Open Access
Disinfectants
tiles
Biofilms
biofilm
pesticide
11 Citations (Scopus)

A Multistate Molecular Switch Based on the 6,8-Rearrangement in Bromo-apigeninidin Operated with pH and Host-Guest Inputs

Basílio, N., Cruz, L., De Freitas, V. & Pina, F., 28 Jul 2016, In : Journal of Physical Chemistry B. 120, 29, p. 7053-7061 9 p.

Research output: Contribution to journalArticle

Open Access
Isomers
Molecular dynamics
switches
Chemical activation
Switches
4 Citations (Scopus)
Chalcone
glucosides
Glucosides
Isomerization
pigments
14 Citations (Scopus)
Open Access
File
Photochemistry
Anthocyanins
Photochemical reactions
Thermodynamics
Cations
3 Citations (Scopus)

Effect of Methyl, Hydroxyl, and Chloro Substituents in Position 3 of 3′,4′,7-Trihydroxyflavylium: Stability, Kinetics, and Thermodynamics

Alejo-Armijo, A., Salido, S., Altarejos, J., Parola, A. J., Gago, S., Basílio, N., Cabrita, L. & Pina, F., 22 Aug 2016, In : Chemistry-A European Journal. 22, 35, p. 12495-12505 11 p.

Research output: Contribution to journalArticle

Open Access
Chalcone
Hydroxyl Radical
Thermodynamics
Kinetics
Anthocyanins
4 Citations (Scopus)
Open Access
Chalcone
Charge transfer
Photoisomerization
Amines
Protons

Photoluminescent Nanocrystals in a Multicomponent Aluminoborosilicate Glass

Ruivo, A., Ferro, M., Andrade, S. M., Rocha, J., Pina, F. & Laia, C. A. T., 3 Nov 2016, In : Journal of Physical Chemistry C. 120, 43, p. 24925-24931 7 p.

Research output: Contribution to journalArticle

Open Access
Nanocrystals
Photoluminescence
nanocrystals
halides
photoluminescence
2 Citations (Scopus)

Synthesis and multistate characterization of bis-flavylium dications-symmetric resorcinol- and phloroglucinol-type derivatives as stochastic systems

Basílio, N., Garnier, T., Avó, J., Danel, M., Chassaing, S. & Pina, F., 2016, In : RCS Advances. 6, 74, p. 69698-69707 10 p.

Research output: Contribution to journalArticle

Phloroglucinol
Stochastic systems
Isomers
Rate constants
Derivatives
2015
24 Citations (Scopus)

Anthocyanins and derivatives are more than flavylium cations

Pina, F., Oliveira, J. & de Freitas, V., 20 May 2015, In : Tetrahedron. 71, 20, p. 3107-3114 8 p.

Research output: Contribution to journalArticle

Wine
Anthocyanins
Cations
Derivatives
Color
8 Citations (Scopus)

Characterization of kinetic and thermodynamic parameters of cyanidin-3-glucoside methyl and glucuronyl metabolite conjugates

Cruz, L., Basílio, N., Mateus, N., Pina, F. & De Freitas, V., 5 Feb 2015, In : Journal of Physical Chemistry B. 119, 5, p. 2010-2018 9 p.

Research output: Contribution to journalArticle

glucosides
metabolites
Metabolites
Anthocyanins
Equilibrium constants
19 Citations (Scopus)

Electrochromic devices based on disubstituted oxo-bipyridinium ionic liquids

Jordão, N., Cruz, H. G. D. S., Branco, A., Pina, F. & Branco, L. C., 2015, In : CHEMPLUSCHEM. 80, 1, p. 202-208 7 p.

Research output: Contribution to journalArticle

Electrochromic devices
Ionic Liquids
Voltammetry
Electrolytes
Industrial applications
24 Citations (Scopus)
Naphthols
Naphthol
Proton transfer
Excited states
protons
7 Citations (Scopus)
Photochromism
Chalcone
Isomerization
Large scale systems
Positive ions
15 Citations (Scopus)
Nuclear magnetic resonance spectroscopy
Cations
Bearings (structural)
Fluorescence
cucurbit(7)uril
13 Citations (Scopus)
cyclodextrins
Anthocyanins
Cyclodextrins
Cucurbitaceae
Hydration
6 Citations (Scopus)

Origin of the metastable stability in flavylium multistate systems

Petrov, V., Slavcheva, S., Stanimirov, S. & Pina, F., 26 Mar 2015, In : Journal of Physical Chemistry A. 119, 12, p. 2908-2918 11 p.

Research output: Contribution to journalArticle

Optical data storage
Cyclodextrins
metastable state
Isomerization
Light absorption
6 Citations (Scopus)
Rotaxanes
Chalcone
Cations
Viologens
cations
15 Citations (Scopus)

Switchable electrochromic devices based on disubstituted bipyridinium derivatives

Jordão, N., Cruz, H. G. D. S., Branco, A., Pinheiro, C., Pina, F. & Branco, L. C., 9 Mar 2015, In : RCS Advances. 5, 35, p. 27867-27873 7 p.

Research output: Contribution to journalArticle

Electrochromic devices
Color
Derivatives
Salts
Radiation counters
2014
2 Citations (Scopus)

4-Carboxy-7-hydroxyflavylium. A Multistate System Involving Twelve Species Reversibly Interconverted by pH and light stimuli

Gavara, R., Gago, S., Jordão, N. & Pina, F., 3 Jul 2014, In : Journal of Physical Chemistry A. 118, 26, p. 4723-4731 9 p.

Research output: Contribution to journalArticle

stimuli
Irradiation
Chalcones
Photochromism
Kinetics
14 Citations (Scopus)

A Multistate pH-Triggered Nonlinear Optical Switch

Castet, F., Champagne, B., Pina, F. & Rodriguez, V., 4 Aug 2014, In : ChemPhysChem. 15, 11, p. 2221-2224 4 p.

Research output: Contribution to journalArticle