Výsledky vyhledávání - "Maria Augusta Antunes"

Step-by-step approach to ranking green roof retrofit potential in urban areas: A case study of Lisbon, Portugal

Autor: Inês Flores-Colen, Cristina Matos Silva, Maria Augusta Antunes

Publikováno v: Urban Forestry & Urban Greening. 25:120-129

In the last years, green roofs have become increasingly popular to improve urban life and help overcome environmental challenges. This paper presents a methodology to rank existing built areas when planning green roofs installation on existing buildi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49dcc8b035c9c8c239db02db77702cfc
https://doi.org/10.1016/j.ufug.2017.04.018

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Spectroscopic Determination of the Electronic Structure of a Uranium Single-Ion Magnet

Autor: Philipp P. Hallmen, Heiko Bamberger, Maria Augusta Antunes, Milan Orlita, Joana T. Coutinho, Mauro Perfetti, Laura C. J. Pereira, Manuel Almeida, José J. Baldoví, I. Crassee, Joris van Slageren

Publikováno v: Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2019, 25 (7), pp.1758-1766. ⟨10.1002/chem.201805090⟩
Chemistry – A European Journal

Early actinide ions have large spin-orbit couplings and crystal field interactions, leading to large anisotropies. The success in using actinides as single-molecule magnets has so far been modest, underlining the need for rational strategies. Indeed,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bffcedd4c5b6105eb07ddc9ab9a138b
https://pubmed.ncbi.nlm.nih.gov/30403293

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Reactivity of a new family of diamido-diamine cyclam-based zirconium complexes in ethylene polymerization

Autor: Ana M. Martins, M. Teresa Duarte, Inês Matos, Rui F. Munhá, Anabela C. Fernandes, M. Mercês Marques, Luis G. Alves, Maria Augusta Antunes

Publikováno v: Inorganica Chimica Acta. 363:1823-1830

Compounds of general formula [(∗Bn2Cyclam)ZrCl2] (∗Bn = 4-tBuC6H4CH2, (4) and 4-CF3C6H4CH2, (5)) were synthesised using Zr(CH2SiMe3)2Cl2(Et2O)2 and the corresponding ligand precursors 1,8-(4-tbutylbenzyl)-1,4,8,11-tetraazacyclotetradecane (H2(4-t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c0d4e3ab38431eed9100d5547b88bc7
https://doi.org/10.1016/j.ica.2010.02.018

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Ionic Hydrogenation of Ketones with Molybdenum Pentabenzylcyclopentadienyl Hydride Catalysts

Autor: Ana M. Martins, M. Teresa Duarte, José R. Ascenso, Luis F. Veiros, Sónia Namorado, Maria Augusta Antunes

Publikováno v: Organometallics. 27:4589-4599

A study of the reactivity of [MoCpBz(CO)3H] (CpBz = pentabenzylcyclopentadienyl) as a catalyst precursor for the ionic hydrogenation of 3-pentanone is presented. The complexes [MCpBz(CO)3OTf] (M = Mo (3), W (4)), [MoCpBz(CO)3(O═CEt2)]BF4 (9), and [

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34ec05c5d9f01a2ab76875d6a0055ca0
https://doi.org/10.1021/om800379z

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A Mononuclear Uranium(IV) Single-Molecule Magnet with an Azobenzene Radical Ligand

Autor: Eugenio Coronado, Joana T. Coutinho, Alejandro Gaita-Ariño, Joaquim Marçalo, Isabel Santos, Manuel Almeida, Laura C. J. Pereira, Maria Augusta Antunes, José J. Baldoví

Publikováno v: Maria A. Antunes, Joana T. Coutinho, Isabel C. Santos, Joaquim Marçalo, Manuel Almeida, José J. Baldoví, Laura C. J. Pereira, Alejandro Gaita-Ariño, Eugenio Coronado, Chemistry: A European Journal, 2015, 21 (49) 17817-17826
RODERIC: Repositorio Institucional de la Universitat de Valéncia
Universitat de València
M.A. Antunes J.T. Coutinho I.C. Santos J. Marçalo L.C.J. Pereira M. Almeida J.J. Baldoví E. Coronado A. Gaita-Ariño 2015 A Mononuclear Uranium(IV) Single-Molecule Magnet with an Azobenzene Radical Ligand Chemistry-A European Journal 21 17817 17826
RODERIC. Repositorio Institucional de la Universitat de Valéncia
instname
Chemistry-A European Journal

A tetravalent uranium compound with a radical azobenzene ligand, namely, [{(SiMe2NPh)3‐tacn}UIV(η2‐N2Ph2.)] (2), was obtained by one‐electron reduction of azobenzene by the trivalent uranium compound [UIII{(SiMe2NPh)3‐tacn}] (1). Compound 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5010ecb4ea46c06509bb786fcbed579b
https://hdl.handle.net/10550/79243

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Synthesis and characterization of uranium(III) compounds supported by the hydrotris(3,5-dimethyl-pyrazolyl)borate ligand: Crystal structures of [U(TpMe2)2(X)] complexes (X=OC6H2-2,4,6-Me3, dmpz, Cl)

Autor: Ângela Domingos, Isabel Santos, Josef Takats, Noémia Marques, Maria Augusta Antunes

Publikováno v: Polyhedron. 24:3038-3045

Reaction of [U(TpMe2)2(NR2)] (R = Ph, SiMe3) with protic substrates such as 2,4,6-trimethylphenol (HOC6H2-2,4,6-Me3), 3,5-dimethylpyrazole (Hdmpz), 2-mercaptopyridine (HSC5H4N) and phenylacetylene (HCCPh) afforded the corresponding [U(TpMe2)2(OAr)] (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a004816996b57eb87ec4c2688e35716a
https://doi.org/10.1016/j.poly.2005.06.025

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Zero-field slow magnetic relaxation in a uranium(III) complex with a radical ligand

Autor: Laura C. J. Pereira, Joaquim Marçalo, Joana T. Coutinho, Manuel Almeida, Maria Augusta Antunes

Publikováno v: Chemical communications (Cambridge, England). 50(71)

[U(Tp(Me2))2(bipy˙)], a uranium(III) complex with a radical bipyridine ligand which has magnetic properties with contributions from both the ligand and the metal, presents slow relaxation of the magnetisation at low temperatures, already under zero

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c12024d60e5c954b655531da3b08180
https://pubmed.ncbi.nlm.nih.gov/25056758

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Two-electron versus one-electron reduction of chalcogens by uranium (III): synthesis of a terminal U (V) persulfide complex

Autor: Jacques Pécaut, Clément Camp, Gregorio García, Maria Augusta Antunes, Ilaria Ciofini, Manuel Almeida, Isabel Santos, Marinella Mazzanti, Joaquim Marçalo

Publikováno v: Chemical Science
Chemical Science, 2014, 5 (2), pp.841--846. ⟨10.1039/C3SC52742E⟩
Chemical Science, The Royal Society of Chemistry, 2014, 5 (2), pp.841--846. ⟨10.1039/C3SC52742E⟩
Chemical Science, The Royal Society of Chemistry, 2014, 5 (2), pp.841-846. ⟨10.1039/C3SC52742E⟩

International audience; The reaction of the tripodal tris-amido U(III) complex [U{(SiMe2NPh)3–tacn}] (tacn = 1,4,7-triazacyclononane), 1, with 0.0625 and 0.25 equiv. of elemental sulfur affords the sulfide-bridged U(IV) complex [{U((SiMe2NPh)3–ta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7eac41d34525250eb5763681192e64c0
https://hal.science/hal-01877477

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Crystal structure diversity in the bis[hydrotris(3,5-dimethylpyrazolyl)borate]iodouranium(III) complex: from neutral to cationic forms

Autor: Joaquim Marçalo, Marinella Mazzanti, Manuel Almeida, Hélène Bolvin, Laura C. J. Pereira, Maria Augusta Antunes, Isabel Santos

Publikováno v: Dalton Transactions
Dalton Transactions, Royal Society of Chemistry, 2013, 42 (24), pp.8861-8867. ⟨10.1039/c3dt50753j⟩
Dalton Transactions, 2013, 42 (24), pp.8861-8867. ⟨10.1039/c3dt50753j⟩

International audience; The iodouranium(III) complex with two hydrotris(3,5-dimethylpyrazolyl)borate ligands is shown to adopt three closely related forms in the solid state. In addition to the previously reported structure for [U(Tp(Me2))2I], in whi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7936804d0668926890bca78c5953588f
https://hal.archives-ouvertes.fr/hal-00868863

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The uranium-nitrogen bond in U IV complexes supported by the hydrotris(3,5-dimethylpyrazolyl)borate ligand

Autor: Ângela Domingos, Marta Dias, Isabel Santos, Manuela Ramos Silva, Noémia Marques, Maria Augusta Antunes, Joaquim Marçalo

Publikováno v: Dalton transactions (Cambridge, England : 2003). (20)

Insertion of benzonitrile and acetonitrile into the U–C bond of [U(TpMe2)Cl2(CH2SiMe3)] (TpMe2 = HB(3,5-Me2pz)3) gives the ketimide complexes [U(TpMe2)Cl2{NC(R)(CH2SiMe3)}] (R = Ph (1); Me (2)). The identity of complex 1 was ascertained by a single

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cca9172d906d70a32aabeefbd299f6de
https://pubmed.ncbi.nlm.nih.gov/16193154

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