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N. Speziali · SciRah

Researcher profile · Semantic Scholar

N. Speziali

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N. Speziali — researcher profile on SciRah

h-index: 25
Works: 109
Citations: 2,179

Most-cited papers

Measuring the degree of stacking order in graphite by Raman spectroscopy
L. G. Cançado, K. Takai, T. Enoki, M. Endo +5 more
2008430 citations Open access
Semantic Scholar
Tin(IV) complexes of 2‐benzoylpyridine N(4)‐phenyl‐thiosemicarbazone: spectral characterization, structural studies and antifungal activity
Anayive P. Rebolledo, G. M. de Lima, L. Gambi, N. Speziali +5 more
2003116 citations
Semantic Scholar
Pyridine-derived thiosemicarbazones and their tin(IV) complexes with antifungal activity against Candida spp.
G. L. Parrilha, J. D. da Silva, L. Gouveia, A. K. Gasparoto +5 more
2011European journal of medicinal chemistry79 citations
Semantic Scholar
N(4)-tolyl-2-benzoylpyridine thiosemicarbazones and their copper(II) complexes with significant antifungal activity: crystal structure of N(4)-para-tolyl-2-benzoylpyridine thiosemicarbazone
I. Mendes, J. P. Moreira, N. Speziali, A. Mangrich +2 more
200676 citations Open access
Semantic Scholar
New families of hetero-tri-spin 2p-3d-4f complexes: synthesis, crystal structures, and magnetic properties.
Lívia B. L. Escobar, G. Guedes, S. Soriano, N. Speziali +7 more
2014Inorganic Chemistry73 citations
Semantic Scholar
2-Acetylpyridine thiosemicarbazones: cytotoxic activity in nanomolar doses against malignant gliomas.
Josane A. Lessa, I. Mendes, P. D. da Silva, Marcella A. Soares +5 more
2010European journal of medicinal chemistry67 citations
Semantic Scholar
4-nitroacetophenone-derived thiosemicarbazones and their copper(II) complexes with significant in vitro anti-trypanosomal activity.
Anayive Pérez-Rebolledo, Leticia R. Teixeira, A. Batista, A. Mangrich +7 more
2008European journal of medicinal chemistry65 citations
Semantic Scholar
Gold(I) complexes with thiosemicarbazones: cytotoxicity against human tumor cell lines and inhibition of thioredoxin reductase activity.
Josane A. Lessa, Juliana C. Guerra, Luana F. de Miranda, Carla F. D. Romeiro +5 more
2011Journal of Inorganic Biochemistry61 citations
Semantic Scholar
2-Benzoylpyridine-N(4)-tolyl thiosemicarbazones and their palladium(II) complexes: cytotoxicity against leukemia cells.
K. O. Ferraz, L. Ferandes, D. Carrilho, M. C. Pinto +5 more
2009Bioorganic & Medicinal Chemistry55 citations Open access
Semantic Scholar
Organotin(IV) complexes with 2-acetylpyridine benzoyl hydrazones: antimicrobial activity
A. R. Despaigne, Lorena F. Vieira, I. Mendes, F. B. da Costa +2 more
201052 citations Open access
Semantic Scholar
N(4)-tolyl-2-benzoylpyridine-derived thiosemicarbazones and their palladium(II) and platinum(II) complexes: Cytotoxicity against human solid tumor cells
K. O. Ferraz, G. M. M. Cardoso, C. M. Bertollo, E. M. Souza-Fagundes +5 more
201141 citations Open access
Semantic Scholar
Improved Antileishmanial Activity of Dppz through Complexation with Antimony(III) and Bismuth(III): Investigation of the Role of the Metal
Edgar H. Lizarazo-Jaimes, R. Monte-Neto, Priscila G. Reis, N. G. Fernandes +4 more
2012Molecules40 citations Open access
Semantic Scholar
Vibrational spectroscopy and aromaticity investigation of squarate salts: A theoretical and experimental approach
S. L. Georgopoulos, R. Diniz, M. Yoshida, N. Speziali +3 more
200640 citations
Semantic Scholar
Structural and spectral studies of thiosemicarbazones derived from 3- and 4-formylpyridine and 3- and 4-acetylpyridine
I. Mendes, Leticia R. Teixeira, Rejane Lima, H. Beraldo +2 more
200140 citations
Semantic Scholar
Antimony(III) complexes with pyridine-derived thiosemicarbazones: Structural studies and investigation on the antitrypanosomal activity
Josane A. Lessa, Débora C. Reis, I. C. Mendes, N. Speziali +4 more
201139 citations Open access
Semantic Scholar
Tin(IV) complexes obtained by reacting 2-benzoylpyridine-derived thiosemicarbazones with SnCl4 and Ph2SnCl2
Anayive Pérez-Rebolledo, G. M. de Lima, N. Speziali, O. Piro +3 more
200637 citations
Semantic Scholar
New synthetic route toward heterometallic 3d-3d' and 3d-4f single-molecule magnets. The first Co(II)-Mn(III) heterometallic complex.
G. Guedes, S. Soriano, L. Mercante, N. Speziali +3 more
2013Inorganic Chemistry33 citations
Semantic Scholar
Synthesis, cytotoxicity and antiplasmodial activity of novel ent-kaurane derivatives.
R. Batista, P. A. García, M. Castro, J. M. Miguel del Corral +7 more
2013European journal of medicinal chemistry33 citations Open access
Semantic Scholar
Preparation and characterization of solid dispersion of simvastatin
T. D. Silva, Valquíria T Arantes, J. Resende, N. Speziali +2 more
2010Drug Development and Industrial Pharmacy33 citations
Semantic Scholar
Synthesis and characterization of SnO2 thin films prepared by dip-coating method
D. Carvalho, M. Schiavon, M. T. Raposo, R. de Paiva +5 more
201232 citations Open access
Semantic Scholar
Role of the substituent effect over the squarate oxocarbonic ring: spectroscopy, crystal structure, and density functional theory calculations of 1,2-dianilinosquairane.
C. E. Silva, H. D. dos Santos, N. Speziali, R. Diniz +1 more
2010Journal of Physical Chemistry A32 citations
Semantic Scholar
Chalcone-derived thiosemicarbazones and their zinc(II) and gallium(III) complexes: spectral studies and antimicrobial activity
J. D. da Silva, Camila C.H. Perdigão, N. Speziali, H. Beraldo
201331 citations
Semantic Scholar
Synthesis of a polymetallic Pt, Sn complex containing square planar and trigonal bipyramidal platinum centres
Wagner M. Teles, N. Speziali, C. A. Filgueiras
200031 citations
Semantic Scholar
Two Cobalt(II) Cubane Compounds: The Key Role of Small Ligand Changes on the Crystal Packing and Magnetic Properties
G. Guedes, S. Soriano, N. M. Comerlato, N. Speziali +3 more
201228 citations
Semantic Scholar
One-dimensional copper(II) coordination polymers based on carboxylate anions and rigid pyridyl-donor ligands
L. F. Marques, M. V. Marinho, C. C. Corrêa, N. Speziali +2 more
201123 citations Open access
Semantic Scholar
5-Nitroimidazole-derived Schiff bases and their copper(II) complexes exhibit potent antimicrobial activity against pathogenic anaerobic bacteria
Alexandre A. Oliveira, Ana P. A. Oliveira, L. L. Franco, Micael O. Ferencs +6 more
2018Biometals20 citations
Semantic Scholar
Crystal structure, thermal analysis and spectroscopic properties of Tetrabutylammonium 3,5-bis(dicyanomethylene)-cyclopentane-1,2,4-trionate: An intriguing pseudo-oxocarbon and its zinc(II) complex
Wagner M. Teles, Regis de A. Farani, D. Maia, N. Speziali +3 more
200620 citations
Semantic Scholar
Synthesis and crystal structure of a cobalt(II) coordination polymer constructed from 2,6-pyridinedicarboxylate anion and 1,3-bis(4-pyridyl)propane nitrogen ligand
L. F. Marques, M. V. Marinho, N. Speziali, L. Visentin +1 more
201119 citations
Semantic Scholar
Epiclusianone: a New Natural Product Derivative of Bicyclo[3.3.1]nonane‐2,4,9‐trione
M. D. dos Santos, N. Speziali, T. Nagem, T. T. de Oliveira
199818 citations
Semantic Scholar
Synthesis, characterization and biocidal activity of new organotin complexes of 2-(3-oxocyclohex-1-enyl)benzoic acid.
F. Vieira, G. M. de Lima, J. R. da S. Maia, N. Speziali +4 more
2010European journal of medicinal chemistry17 citations
Semantic Scholar
Structural studies and spectral characteristics of 4-benzoylpyridine thiosemicarbazone and N (4′)-phenyl-4-benzoylpyridine thiosemicarbazone
H. Beraldo, Ana Mena Barreto, Rafael P. Vieira, Anayive P. Rebolledo +3 more
200317 citations Open access
Semantic Scholar
N (4 ) -Methyl -4 -nitroacetophenone thiosemicarbazone and its nickel(II) complex : Experimental and theoretical structural studies
Anayive Pérez-Rebolledo, I. C. Mendes, N. Speziali, P. Bertani +3 more
200716 citations
Semantic Scholar
Structural studies on acetophenone- and benzophenone-derived thiosemicarbazones and their zinc(II) complexes
K. O. Ferraz, Nayane F. Silva, J. D. da Silva, N. Speziali +2 more
201215 citations
Semantic Scholar
New properties of the [3-MeRad]2[Mn2{Cu(opba)}3] system [3-MeRad+=radical cation, opba=ortho-phenylenebis(oxamato)]: a molecule-based magnet with two-dimensional behavior
M. G. Vaz, Emerson F. Pedroso, N. Speziali, M. Novak +2 more
200115 citations
Semantic Scholar
Complete assignment of the 1H and 13C NMR spectra of the tetraisoprenylated benzophenone 15‐epiclusianone
M. D. dos Santos, T. Nagem, R. Braz-Filho, I. Lula +1 more
200115 citations
Semantic Scholar
Synthesis, crystal structures and magnetic behaviour of four coordination compounds constructed with a phosphinic amide-TEMPO radical and [M(hfac)2] (M = Cu(II), Co(II) and Mn(II)).
S. G. Reis, Miguel A. del Águila-Sánchez, G. Guedes, G. Ferreira +4 more
2014Dalton Transactions14 citations
Semantic Scholar
Heptanuclear cobalt(II) dicubane compounds with single-molecule magnet behavior
G. Guedes, S. Soriano, N. M. Comerlato, N. Speziali +2 more
201313 citations
Semantic Scholar
Synthesis and Properties of New Molecule-Based Magnets Containing Mn(II), Cu(II) and Nitronyl Nitroxide Radical Cation
M. G. Vaz, M. Knobel, N. Speziali, Alexandre de Melo Moreira +2 more
200213 citations Open access
Semantic Scholar
Epiclusianone: A New Natural Product Derivative of Bicyclo[3.3.1]nonane‐2,4,9‐trione.
M. D. dos Santos, N. Speziali, T. Nagem, T. T. de Oliveira
199913 citations
Semantic Scholar
Anomalous behavior of the internal stretching modes above and below the incommensurate phase transition of Cs 2 HgBr 4
A. Jorio, M. S. Dantas, C. Pinheiro, N. Speziali +1 more
199813 citations
Semantic Scholar
Two copper(II)-nitronyl nitroxide radical dimers with a bulky β-diketonate: Synthesis, structure and magnetic behavior
G. Guedes, Rafaela Zorzanelli, N. M. Comerlato, N. Speziali +2 more
201212 citations
Semantic Scholar
Mono- and binuclear copper(II) complexes containing di(2-pyridyl)sulfide (DPS) as chelating ligand: Spectroscopic characterization and crystal structures of [Cu(DPS)(H2O)Cl2] · H2O and [{Cu(DPS)Cl}2μ-(Cl)2]
Wagner M. Teles, M. V. Marinho, M. Yoshida, N. Speziali +5 more
200612 citations
Semantic Scholar
Mössbauer and XRD Characterization of the Mineral Matter of Coal from the Guachinte Mine in Colombia
F. Reyes, G. A. Pérez Alcázar, J. Barraza, A. Bohórquez +2 more
200312 citations
Semantic Scholar
Cyclization of N-alkyldithiocarbamates in alkaline media, a counter example of well-known chemistry – an experimental and theoretical study
G. M. de Lima, D. C. Menezes, J. F. D. Dos Santos, J. Wardell +4 more
201211 citations
Semantic Scholar
Bis(dicyanomethylene)squarate squaraines in their 1,2- and 1,3-forms: Synthesis, crystal structure and spectroscopic study of compounds containing alkali metals and tetrabutylammonium ions
V. D. de Oliveira, G. D. de Carvalho, M. Yoshida, C. Donnici +3 more
200911 citations
Semantic Scholar
Crystal structure and vibrational spectra of cesium salts of bis(dicyanomethylene)croconate (croconate violet) ion
R. Diniz, L. R. V. de Sá, B. Rodrigues, M. Yoshida +2 more
200811 citations
Semantic Scholar
Ferrocene-derived semicarbazones and thiosemicarbazones as ligands in heterobimetallic complexes with organotins. Crystal and molecular structures of formylferrocene–semicarbazonetrichlorophenyltin(IV) and of bis(acetylferrocenesemicarbazone)dichlorodiphenyltin(IV)
J. J. C. Graúdo, N. Speziali, A. Abras, M. Hörner +1 more
199911 citations
Semantic Scholar
Structural Analysis of Cs2HgBr4 in Normal, Incommensurate and Twinned Phases
C. Pinheiro, A. Jorio, M. Pimenta, N. Speziali
199810 citations
Semantic Scholar
Nanoparticle phosphate-based composites as vehicles for antimony delivery to macrophages: possible use in leishmaniasis.
B. M. Alvarenga, M. Melo, F. Frézard, C. Demicheli +4 more
2015Journal of materials chemistry. B9 citations
Semantic Scholar
A New Quartz-like Metal–Organic Framework Constructed from a Versatile Pyrazole-Based Spacer
G. Guedes, Igor F. Santos, L. Mercante, N. Speziali +4 more
20159 citations
Semantic Scholar

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H. Beraldo×17
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M. G. Vaz×9
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G. Guedes×7
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I. Mendes×6
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M. Novak — researcher profile on SciRah

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L. D. de Oliveira×5

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G. M. de Lima×4

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J. D. da Silva×4

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