A5009494450- Metal complexes synthesis and properties
- Nonlinear Optical Materials Research
- Magnetism in coordination complexes
- Solid-state spectroscopy and crystallography
- Bone Tissue Engineering Materials
- Lanthanide and Transition Metal Complexes
- Free Radicals and Antioxidants
- Chemical Thermodynamics and Molecular Structure
- Thermal and Kinetic Analysis
- Crystal structures of chemical compounds
- Chemical Synthesis and Characterization
- Synthesis and biological activity
- X-ray Diffraction in Crystallography
- Thermal Expansion and Ionic Conductivity
- Crystallography and molecular interactions
- Chemical and Physical Properties in Aqueous Solutions
- History and Developments in Astronomy
- Layered Double Hydroxides Synthesis and Applications
- Dental Implant Techniques and Outcomes
- Phenothiazines and Benzothiazines Synthesis and Activities
- Titanium Alloys Microstructure and Properties
- Adsorption and Cooling Systems
- Inorganic and Organometallic Chemistry
- Agricultural and Food Sciences
Universidade Federal do Maranhão
2022-2025
Centro de Estudos em Psicologia da Saúde
2020
In this study, L-threonine crystals (L-thr) containing Dy3+ ions (L-thrDy5 and L-thrDy10) with varying mass concentrations (5% 10%) were successfully synthesized using a solvent slow evaporation method. The structural properties characterized by Powder X-ray diffraction Rietveld refinement. data revealed that all three samples crystallized in orthorhombic symmetry (P212121-space group) presented four molecules per unit cell (Z = 4). However, the addition of induced dilation effect lattice...
Diante da necessidade de se desenvolver dispositivos solares ecologicamente viáveis e custo acessível, com este trabalho buscou-se sintetizar um novo complexo sensibilizador do tipo cobre-produto natural para aplicação em célula solar sensibilizada por corante (DSSC). A partir rota sintética relativamente simples obteve-se o [Cu(2,2´-bipiridina)2(antrarufinato)]PF6, CBA, pó amorfo coloração vermelho-escuro. caracterização foi feita espectroscopias vibracional na região infravermelho (FTIR)...
Nesse sentido, o objetivo deste trabalho foi avaliar lodo da ETA cidade de Balsas-MA como alternativa seu aproveitamento incorporado à argamassa agregado miúdo para uso na construção civil. Para isso, aplicou-se primeiramente método observação não participante diagnóstico do local. Posteriormente, realizou-se coleta material, qual devidamente processado sob condições térmicas posterior caracterização microbiológica, química por espectroscopia vibracional região infravermelho, mineralógica...
Nonlinear optical materials have been investigated recently due to their potential technological applications in information storage and communications. In this context, semi-organic crystals can effectively combine the desired nonlinear properties of amino acids with promising mechanical thermal inorganic materials. work, we synthesized characterized a crystal acid L-histidine hydrofluoric chemical interactions between organic moieties. The bis(fluoride) has produced by slow solvent...
Tutton salts have been extensively explored in recent decades due to their attractive physical and chemical properties, which make them potential candidates for thermochemical heat storage systems optical technologies. In this paper, a series of new mixed with the formula (NH4)2Mn1-xZnx(SO4)2(H2O)6 is reported. Crystals are successfully grown by solvent slow evaporation method characterized powder X-ray diffraction (PXRD) Rietveld refinement. particular, crystal structure...
Here we report the crystallization of tris(nitrate-O,O')-bis(1,10-phenanthroline-N,N')-neodymium(III) complex by slow solvent evaporation method. Structural, electronic, thermal, and vibrational properties have been explored discussed. Additionally, all modes were carefully assigned, geometric parameters chemical reactivity indices obtained from results density functional theory (DFT) calculations including solvation effects in dimethylformamide water, as well vacuum. Moreover, a...
In this paper, novel mixed Tutton salts with the chemical formulas K2Mn0.03Ni0.97(SO4)2(H2O)6 and K2Mn0.18Cu0.82(SO4)2(H2O)6 were synthesized studied as compounds for thermochemical heat storage potential. The crystallographic structures of single crystals determined by X-ray diffraction. Additionally, a comprehensive computational study, based on density functional theory (DFT) calculations Hirshfeld surface analysis, was performed to calculate structural, electronic, thermodynamic...
Dichloro(l-histidine)copper(II) crystal ([Cu(l-His)Cl
Geometric, electronic, thermodynamic, and vibrational properties studies of the Cu(II)-complex with 1,10-phenanthroline L-glutamine ligands are reported. Experimental electronic spectroscopic results were corroborated by density functional theory (DFT) calculations. These also evaluated through implicit solvation method using water methanol solvents, as well in vacuum condition. Our theoretical predictions provided frontier molecular orbitals, chemical reactivity indices, dipole moment,...
RESUMO A hidroxiapatita é um fosfato de cálcio considerada como biomaterial utilizada em restaurações ósseas, uma vez que apresenta características semelhantes à fase mineral do tecido ósseo. Por possuir diversos métodos obtenção, a síntese pó tem estimulado interesse pesquisas acadêmicas e indústrias, pois as condições dos reagentes influenciam na estrutura, morfologia aplicação composto final desejado. Este trabalho propende realizar estudo comparativo sobre utilizando iguais, por dois...