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Ricardo Freire
Ricardo Freire
Professor of Chemistry, Universidade Federal de Sergipe
Verified email at ufs.br - Homepage
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Cited by
Year
RM1: A reparameterization of AM1 for H, C, N, O, P, S, F, Cl, Br, and I
GB Rocha, RO Freire, AM Simas, JJP Stewart
Journal of computational chemistry 27 (10), 1101-1111, 2006
8972006
Cytotoxicity and slow release of the anti-cancer drug doxorubicin from ZIF-8
IB Vasconcelos, TG da Silva, GCG Militão, TA Soares, NM Rodrigues, ...
RSC Advances 2 (25), 9437-9442, 2012
2852012
LUMPAC lanthanide luminescence software: Efficient and user friendly
JDL Dutra, TD Bispo, RO Freire
Journal of computational chemistry 35 (10), 772-775, 2014
2352014
Sparkle model for the calculation of lanthanide complexes: AM1 parameters for Eu (III), Gd (III), and Tb (III)
RO Freire, GB Rocha, AM Simas
Inorganic chemistry 44 (9), 3299-3310, 2005
1912005
Spectroscopic Study of a UV‐Photostable Organic–Inorganic Hybrids Incorporating an Eu3+ β‐Diketonate Complex
PP Lima, RA Sá Ferreira, RO Freire, FA Almeida Paz, L Fu, S Alves Jr, ...
ChemPhysChem 7 (3), 735-746, 2006
1462006
3-phenyl-4-benzoyl-5-isoxazolonate Complex of Eu3+ with Tri-n-octylphosphine Oxide as a Promising Light-conversion Molecular Device
R Pavithran, NS Saleesh Kumar, S Biju, MLP Reddy, SA Junior, RO Freire
Inorganic chemistry 45 (5), 2184-2192, 2006
1292006
Tb3+→ Eu3+ Energy Transfer in Mixed-Lanthanide-Organic Frameworks
MO Rodrigues, JDL Dutra, LAO Nunes, GF de Sá, WM de Azevedo, ...
The Journal of Physical Chemistry C 116 (37), 19951-19957, 2012
1162012
Sparkle/PM7 Lanthanide Parameters for the Modeling of Complexes and Materials
JDL Dutra, MAM Filho, GB Rocha, RO Freire, AM Simas, JJP Stewart
Journal of chemical theory and computation 9 (8), 3333-3341, 2013
1142013
Sparkle/PM6 Parameters for all Lanthanide Trications from La (III) to Lu (III)
RO Freire, AM Simas
Journal of Chemical Theory and Computation 6 (7), 2019-2023, 2010
1142010
Theoretical and Experimental Studies of the Photoluminescent Properties of the Coordination Polymer [Eu (DPA)(HDPA)(H2O) 2]⊙ 4H2O
MO Rodrigues, NB da Costa Júnior, CA de Simone, AAS Araújo, ...
The Journal of Physical Chemistry B 112 (14), 4204-4212, 2008
972008
Energy transfer mechanisms in organic-inorganic hybrids incorporating europium (III): a quantitative assessment by light emission spectroscopy
PP Lima, SS Nobre, RO Freire, SA Junior, RA Sá Ferreira, U Pischel, ...
The Journal of Physical Chemistry C 111 (47), 17627-17634, 2007
972007
Tuning of the excitation wavelength from UV to visible region in Eu3+-β-diketonate complexes: Comparison of theoretical and experimental photophysical properties
V Divya, RO Freire, MLP Reddy
Dalton Transactions 40 (13), 3257-3268, 2011
952011
Sparkle model for AM1 calculation of lanthanide complexes: Improved parameters for europium
GB Rocha, RO Freire, NB da Costa Jr, GF de Sá, AM Simas
Inorganic chemistry 43 (7), 2346-2354, 2004
922004
Energy transfer and emission quantum yields of organic-inorganic hybrids lacking metal activator centers
SS Nobre, PP Lima, L Mafra, RA Sá Ferreira, RO Freire, L Fu, U Pischel, ...
The Journal of Physical Chemistry C 111 (8), 3275-3284, 2007
832007
A EuIII Tetrakis (β-diketonate) Dimeric Complex: Photophysical Properties, Structural Elucidation by Sparkle/AM1 Calculations, and Doping into PMMA Films and Nanowires
S Biju, RO Freire, YK Eom, R Scopelliti, JCG Bünzli, HK Kim
Inorganic chemistry 53 (16), 8407-8417, 2014
782014
Sparkle/PM3 for the modeling of europium (III), gadolinium (III), and terbium (III) complexes
RO Freire, GB Rocha, AM Simas
Journal of the Brazilian Chemical Society 20 (9), 1638-1645, 2009
742009
Sparkle/RM1 Parameters for the Semiempirical Quantum Chemical Calculation of Lanthanide Complexes.
MA Machado Filho, JDL Dutra, GB Rocha, RO Freire, AM Simas
RSC Adv., 2013
732013
Modeling, structural, and spectroscopic studies of lanthanide-organic frameworks
MO Rodrigues, FAA Paz, RO Freire, GF de Sa, A Galembeck, ...
The Journal of Physical Chemistry B 113 (36), 12181-12188, 2009
732009
Influence of fluorinated chain length on luminescent properties of Eu3+ β-diketonate complexes
EA Varaksina, IV Taydakov, SA Ambrozevich, AS Selyukov, KA Lyssenko, ...
Journal of Luminescence 196, 161-168, 2018
712018
Synthesis and Characterization of the Europium (III) Pentakis (picrate) Complexes with Imidazolium Countercations: Structural and Photoluminescence Study
AS Borges, JDL Dutra, RO Freire, RT Moura Jr, JG Da Silva, OL Malta, ...
Inorganic chemistry 51 (23), 12867-12878, 2012
712012
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