Výsledky vyhledávání - "Willian X. C. Oliveira"

Akademický článek

Heterobimetallic One-Dimensional Coordination Polymers MICuII (M = Li and K) Based on Ferromagnetically Coupled Di- and Tetracopper(II) Metallacyclophanes

Autor: Tamyris T. da Cunha, Willian X. C. Oliveira, Emerson F. Pedroso, Francesc Lloret, Miguel Julve, Cynthia L. M. Pereira

Publikováno v: Magnetochemistry, Vol 4, Iss 3, p 38 (2018)

The synthesis, crystal structure and magnetic properties of the coordination polymers of formula [EDAP{Li6(H2O)8[(Cu2(μ-mpba)2)2(H2O)2]}]n (1) and [(EDAP)2{K(H2O)4[Cu2(μ-mpba)2(H2O)2]}Cl·2H2O]n (2), in which mpba = N,N′-1,3-phenylenebis(oxamate)

Externí odkaz: https://doaj.org/article/441a3d9f294a4f59b19852c6df9e9a88

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Lanthanide(iii)-oxamato complexes containing Nd3+ and Ho3+: crystal structures, magnetic properties, and ab initio calculations

Autor: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Eufrânio N. da Silva Júnior, Daniel de C. A. Valente, Thiago M. Cardozo, Bruno A. C. Horta, Davor L. Mariano, Wallace C. Nunes, Emerson F. Pedroso, Cynthia L. M. Pereira

Publikováno v: CrystEngComm. 24:6628-6641

Two series of chlorine or fluorine derivatives containing monooxamato ligands result in diamagnetic complexes of Y3+ and La3+ and paramagnetic complexes of Nd3+ and Ho3+ that behave as single-ion magnets at lower temperatures.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00af3b3fdf5e2a8c6869c47369201d8d
https://doi.org/10.1039/d2ce00867j

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Ferromagnetic coupling in a dicopper(ii) oxamate complex bridged by carboxylate groups

Autor: Cynthia L. M. Pereira, Fabio Furlan Ferreira, Cleverton O. C. da Silveira, Willian X. C. Oliveira, Emerson F. Pedroso, Eufrânio N. da Silva Júnior, Tamyris T. da Cunha, Vitor M. M. Barbosa

Publikováno v: CrystEngComm. 23:1885-1897

Three new air-stable coordination compounds [Cu(HL)2(H2O)2]2·2H2O (1), [Cu(HL)2]n (1a), and [Zn(HL)2(H2O)2] (2), where HL = N-(4-hydroxyphenyl)oxamate, were successfully synthesized and characterized. Single-crystal X-ray analysis reveals 1 as a din

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7e93c04d81ddbddfcfe350c8b17902d
https://doi.org/10.1039/d0ce01742f

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Novel zero-dimensional lead-free bismuth based perovskites: from synthesis to structural and optoelectronic characterization

Autor: Ana Flávia Nogueira, Mailde S. Ozório, Willian X. C. Oliveira, Julian F.R.V. Silveira, Juarez L. F. Da Silva

Publikováno v: Materials Advances. 1:3439-3448

Despite high photo-conversion efficiency, the short long-term stability and toxicity issues have prevented lead-based perovskites from becoming the standard in high efficiency solar cells. Hence, lead-free perovskites with low inorganic framework dim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e001d880d3653322f0b07d940bd1ec1
https://doi.org/10.1039/d0ma00791a

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Improving the Stability and Efficiency of Perovskite Solar Cells by a Bidentate Anilinium Salt

Autor: Lucas Scalon, Rodrigo Szostak, Francineide L. Araújo, Karla F. Adriani, Julian F. R. V. Silveira, Willian X. C. Oliveira, Juarez L. F. Da Silva, Caio C. Oliveira, Ana Flávia Nogueira

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We report improvement in the perovskite solar cell efficiency and stability after passivation with an organic molecule decorated with two anilinium cations. We compare this salt with its neutral analog and found that the change in the electron densit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64ee95f250f8638d078d3d44d6e038d5

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X-ray structure and magnetic properties of a mononuclear complex and a 1D coordination polymer assembled by cobalt(II) ions and a flexible oxamate ligand

Autor: Julia Parreiras, Erica N. Faria, Willian X. C. Oliveira, Carlos B. Pinheiro, Walace D. do Pim, Eufrânio N. da Silva Júnior, Emerson F. Pedroso, Miguel Julve, Cynthia L. M. Pereira

This work describes the synthesis, crystal structures and direct current (dc) magnetic properties of two air-stable oxamato-containing cobalt(II) complexes, [Co(H2edpba)(dmso)2]·dmso·H2O (1) and [Co(H2edpba)(H2O)2]n·n(dmso) (2) [H4edpba = N,N′-2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33f5fc2310f9f3fb5deec8c07327e19e

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Unexpected formation of a dodecanuclear {CoII6CuII6} nanowheel under ambient conditions: magneto-structural correlations

Autor: Ingrid F. Silva, Yves Journaux, Bernd Engels, Willian X. C. Oliveira, Walace D. do Pim, Carlos B. Pinheiro, Emerson F. Pedroso, Humberto O. Stumpf, Miguel Julve, Ivo Krummenacher, Cynthia L. M. Pereira, Felipe Fantuzzi, Holger Braunschweig, Joan Cano, Eufrânio N. da Silva Júnior

Publikováno v: Dalton transactions (Cambridge, England : 2003). 50(36)

We report the unique heterobimetallic dodecanuclear oxamate-based {CoII6CuII6} nanowheel obtained using an environmentally friendly synthetic protocol. The effective Hamiltonian methodology employed herein allows the rationalisation of magnetic isotr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98e7ec8c4a720ff534aa7c4f0d582e8a
https://pubmed.ncbi.nlm.nih.gov/34545875

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Synthesis of Polycrystalline Ruddlesden–Popper Organic Lead Halides and Their Growth Dynamics

Autor: Raphael F. Moral, Christopher J. Tassone, Rupini Kamat, Michael F. Toney, José Carlos Germino, Ana Flávia Nogueira, Willian X. C. Oliveira, Luiz G. Bonato, Junwei Xu, Samuel D. Stranks

Publikováno v: Chemistry of Materials. 31:9472-9479

Ruddlesden–Popper organic lead halides (RPOLHs) are in the material science spotlight because of their remarkable optoelectronic properties, tailorable compositions, and improved ambient stability over their three-dimensional perovskite analogues.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::94ec4a3b889397121a76103f5fcdf606
https://doi.org/10.1021/acs.chemmater.9b03439

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