Willyan F. Oliveira

ORCID: 0000-0003-2904-5993
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About
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Research Areas
  • Lanthanide and Transition Metal Complexes
  • Magnetism in coordination complexes
  • Organic Light-Emitting Diodes Research
  • Geotechnical Engineering and Soil Stabilization
  • Metal complexes synthesis and properties
  • Advanced Cellulose Research Studies
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Natural Fiber Reinforced Composites
  • Food Safety and Hygiene
  • Organometallic Complex Synthesis and Catalysis
  • Radioactive element chemistry and processing
  • Rural Development and Agriculture
  • Supramolecular Chemistry and Complexes
  • Radiation Therapy and Dosimetry
  • Food, Nutrition, and Cultural Practices
  • Advanced Radiotherapy Techniques
  • Synthesis and Reactivity of Heterocycles
  • Geography and Environmental Studies
  • Electron Spin Resonance Studies
  • Radiation Effects and Dosimetry
  • DNA and Nucleic Acid Chemistry
  • Organoselenium and organotellurium chemistry

Universidade Federal de Sergipe
2021-2024

Computational Physics (United States)
2020-2021

[Eu(btfa)<sub>3</sub>DPEPO] and [Eu(nta)<sub>3</sub>DPEPO] are bright, red emitting complexes. They have been incorporated into single double layer electroluminescent devices.

10.1039/d0tc00749h article EN cc-by Journal of Materials Chemistry C 2020-01-01

Two new organo-europium complexes (OEuCs) [Eu(tfac)3(TB-Im)] (Eu1) [Eu(hfac)3(TB-Im)] (Eu2) incorporating fluorinated (hexafluoroacetylacetone; Hhfaa) or hemi-fluorinated (trifluoroacetylacetone; Htfac) β-diketones together with the large bite angle N^N ligand (2-(4-thiazolyl)benzimidazole; TB-Im) have been synthesized and characterized. The structure of has established by single crystal X-ray diffraction (SC-XRD) analysis shows that coordination sphere is composed a EuO6N2 core...

10.1039/d2dt01873j article EN cc-by Dalton Transactions 2022-01-01

The heteronuclear trimetallic d–f–d complex [Eu(btfa)<sub>3</sub>{(Ph)(Et<sub>3</sub>P)<sub>2</sub>Pt–CC–R–CC–Pt(Et<sub>3</sub>P)<sub>2</sub>(Ph)}] has been synthesized and characterized spectroscopically. displays both red green emissions in solution.

10.1039/d0dt04198j article EN cc-by Dalton Transactions 2020-12-28

The objective of this study was to perform a multifaceted analysis the behavior natural fibers geotextiles from Typha domingensis, Eleocharis sp., and Syagrus coronata under environmental stressors over 120 days. Twenty-four samples were selected, each 7 cm in length, for field exposure, representing mentioned species. Many these underwent treatment with waterproofing acrylic styrene resin at two concentrations: 0.324 mg/mL single layer 0.648 double layer, while control remained untreated....

10.2139/ssrn.4851308 preprint EN 2024-01-01

Correction for ‘Utilization of a Pt(<sc>ii</sc>) di-yne chromophore incorporating 2,2′-bipyridine-5,5′-diyl spacer as chelate to synthesize green and red emitting d–f–d heterotrinuclear complex’ by Idris Juma Al-Busaidi <italic>et al.</italic>, <italic>Dalton Trans.</italic>, 2021, DOI: 10.1039/d0dt04198j.

10.1039/d1dt90009a article EN cc-by Dalton Transactions 2021-01-01

Abstract This research provides a comprehensive analysis of the behavior natural geotextile fibers - Syagrus coronata , Typha domingensis and Eleocharis sp. under environmental stressors over period 120 days. A total 24 samples, measuring 7 cm in length, were selected for field exposure, comprising derived from cited species. Most samples underwent treatment with waterproofing resin at two concentrations: 0.324 mg/mL single layer (concentration A) 0.648 double B). Control left untreated....

10.21203/rs.3.rs-3481919/v1 preprint EN cc-by Research Square (Research Square) 2023-11-15
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