0000000001301028
AUTHOR
Wallace C. Nunes
Mononuclear lanthanide(III)-oxamate complexes as new photoluminescent field-induced single-molecule magnets: solid-state photophysical and magnetic properties.
Implementing additional optical (luminescent) properties into the well-known class of single-molecule magnets (SMMs) is considered as a promising route toward obtaining the next generation of optomagnetic materials for quantum information storage and computing. Herein, we report a joint optical and magneto-structural study for the two novel series of lanthanide(iii) complexes of general formula Bu4N[LnIII(HL)4(dmso)]·nH2O where H2L = N-(4-Xphenyl)oxamic acid with X = Cl and n = 2 [Ln = Eu (1_Cl), Gd (2_Cl), Dy (3_Cl), and Tb (4_Cl)] and X = F and n = 3 [Ln = Eu (1_F), Gd (2_F), Dy (3_F), and Tb (4_F)]. All these compounds are mononuclear species with each lanthanide(iii) cation in a low-sym…
Crystal Engineering Applied to Modulate the Structure and Magnetic Properties of Oxamate Complexes Containing the [Cu(bpca)]+ Cation
This work deals with the crystal engineering features of four related copper(II)-based compounds with formulas {[{Cu(bpca)}2(H2ppba)]·1.33DMF·0.66DMSO}n (2), [{Cu(bpca)(H2O)}2(H2ppba)] (3), [{Cu(bpca)}2(H2ppba)]·DMSO (4), and [{Cu(bpca)}2(H2ppba)]·6H2O (5) [H4ppba = N,N′-1,4-phenylenebis(oxamic acid) and Hbpca = bis(2-pyridylcarbonyl)amide] and how their distinct molecular and crystal structures translate into their different magnetic properties. 2 and 3 were obtained through the hydrolytic reaction of the double-stranded oxamato-based dipalladium(II) paracyclophane precursor of formula [{K4(H2O)2}{Pd2(ppba)2}] (1) with the mononuclear copper(II) complex [Cu(bpca)(H2O)2]+, either in a water…
A heterobimetallic [MnII5CuII5] nanowheel modulated by a flexible bis-oxamate type ligand
The synthesis, crystal structure and preliminary magnetic characterization of a new heterobimetallic [MnII5CuII5] wheel containing a flexible bis-oxamate type ligand are described. This decanuclear compound exhibits a relatively strong intra-wheel antiferromagnetic interaction leading to a ground spin state S = 10.
Palladium(II)–Copper(II) Assembling with Bis(2-pyridylcarbonyl)amidate and Bis(oxamate) Type Ligands
Five new complexes of formula K4[Pd2(mpba)2] · 4H2O (1), {[K4(H2O)(dmso)][Pd2(mpba)2]} (2), {[Cu(bpca)]4[Pd2(mpba)2]} · 6H2O (3), {[Cu(bpca)]2[Pd(opba)]} · 1.75dmso · 0.25H2O (4), {[Cu(bpca)]2[Pd(opba)]}n · ndmso (5) [H4mpba =1,3-phenylenebis(oxamic acid), H4opba = 1,2-phenylenebis(oxamic acid), Hbpca = bis(2-pyridylcarbonyl)amide, and dmso = dimethyl sulfoxide] have been prepared and investigated by infrared spectroscopy, thermal analysis, single crystal X-ray diffraction, and magnetic susceptibility techniques. The structure of 2 consists of a [Pd2(mpba)2]4– anionic entity in which the palladium(II) cations are coordinated by two mpba ligands resulting in a dipalladium(II) unit that acts …
Building-up host-guest helicate motifs and chains: a magneto-structural study of new field-induced cobalt-based single-ion magnets.
In this work, we present the synthetic pathway, a refined structural description, complete solid-state characterization and the magnetic properties of four new cobalt(II) compounds of formulas [Co(H2O)6][Co2(H2mpba)3]·2H2O·0.5dmso (1), [Co(H2O)6][Co2(H2mpba)3]·3H2O·0.5dpss (2), [Co2(H2mpba)2(H2O)4]n·4nH2O (3), and [Co2(H2mpba)2(CH3OH)2(H2O)2]n·0.5nH2O·2ndpss (4) [dpss = 2,2′-dipyridyldisulfide and H4mpba = 1,3-phenylenebis(oxamic) acid], where 2 and 4 were obtained from [Co(dpss)Cl2] (Pre-I) as the source of cobalt(II). All four compounds are air-stable and were prepared under ambient conditions. 1 and 2 were obtained from a slow diffusion method [cobalt(II) : H2mpba2− molar ratio used 1 : …
A pH-triggered bistable copper(II) metallacycle as a reversible emulsion switch for biphasic processes.
A unique bistable copper-metallacyclic complex is used as an elegant molecular switch for the reversible formation of emulsions by simple pH variation. This switch may have several exciting applications in biphasic processes such as catalysis and separation science technologies.
Magneto‐Structural Study of an Oxamato‐Bridged Pd II Co II Chain: X‐ray Crystallographic Evidence of a Single‐Crystal‐to‐Single‐Crystal Phase Transition
Two new mononuclear oxamato-containing palladium(II) complexes of formula K2[Pd(opba)]·2H2O (1) and (PPh4)2[Pd(opba)]·2H2O (2) and the heterodimetallic palladium(II)–cobalt(II) chain {[Co(H2O)2Pd(opba)]·dmso}n (3) [opba = 1,2-phenylenebis(oxamate), PPh4+ = tetraphenylphosphonium cation and dmso = dimethyl sulfoxide] have been prepared, and the structures of two of them (compounds 2 and 3) were determined by X-ray diffraction analysis of single crystals. The structure of 2 consists of discrete anions of [Pd(opba)2]2– and PPh4+ cations. Each PdII ion in 2 is surrounded by two oxamate nitrogen atoms and two carboxylate oxygen atoms in a square-planar surrounding. Compound 3 is a neutral chain …
CCDC 1469224: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Carlos B. Pinheiro, Marinez M. da Costa, Ana P. S. Fontes, Wallace C. Nunes, Francesc Lloret, Miguel Julve, Cynthia L. M. Pereira|2016|Cryst.Growth Des.|16|4094|doi:10.1021/acs.cgd.6b00613
CCDC 1830425: Experimental Crystal Structure Determination
Related Article: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira|2020|Dalton Trans.|49|16106|doi:10.1039/D0DT02497J
CCDC 1034456: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Marcos A. Ribeiro, Carlos B. Pinheiro, Marinez M. da Costa, Ana Paula S. Fontes, Wallace C. Nunes, Danielle Cangussu, Miguel Julve, Humberto O. Stumpf, Cynthia L. M. Pereira|2015|Cryst.Growth Des.|15|1325|doi:10.1021/cg5017388
CCDC 1469225: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Carlos B. Pinheiro, Marinez M. da Costa, Ana P. S. Fontes, Wallace C. Nunes, Francesc Lloret, Miguel Julve, Cynthia L. M. Pereira|2016|Cryst.Growth Des.|16|4094|doi:10.1021/acs.cgd.6b00613
CCDC 1958348: Experimental Crystal Structure Determination
Related Article: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira|2020|Dalton Trans.|49|16106|doi:10.1039/D0DT02497J
CCDC 1830430: Experimental Crystal Structure Determination
Related Article: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira|2020|Dalton Trans.|49|16106|doi:10.1039/D0DT02497J
CCDC 1883575: Experimental Crystal Structure Determination
Related Article: Nathália R. de Campos, Cintia A. Simosono, Iara M. Landre Rosa, Rafaela M. R. da Silva, Antônio C. Doriguetto, Walace D. do Pim, Tatiana R. Gomes Simões, Ana Karoline S. M. Valdo, Felipe T. Martins, Charlie V. Sarmiento, Wallace C. Nunes, Guilherme P. Guedes, Emerson F. Pedroso, Cynthia L. M. Pereira, Humberto O. Stumpf, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2021|Dalton Trans.|50|10707|doi:10.1039/D1DT01693H
CCDC 2002706: Experimental Crystal Structure Determination
Related Article: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira|2020|Dalton Trans.|49|16106|doi:10.1039/D0DT02497J
CCDC 1031230: Experimental Crystal Structure Determination
Related Article: Walace D. do Pim, Érica N. de Faria, Willian X. C. Oliveira, Carlos B. Pinheiro, Wallace C. Nunes, Joan Cano, Francesc Lloret, Miguel Julve, Humberto O. Stumpf, Cynthia L. M. Pereira|2015|Dalton Trans.|44|10939|doi:10.1039/C5DT00996K
CCDC 1958349: Experimental Crystal Structure Determination
Related Article: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira|2020|Dalton Trans.|49|16106|doi:10.1039/D0DT02497J
CCDC 1883574: Experimental Crystal Structure Determination
Related Article: Nathália R. de Campos, Cintia A. Simosono, Iara M. Landre Rosa, Rafaela M. R. da Silva, Antônio C. Doriguetto, Walace D. do Pim, Tatiana R. Gomes Simões, Ana Karoline S. M. Valdo, Felipe T. Martins, Charlie V. Sarmiento, Wallace C. Nunes, Guilherme P. Guedes, Emerson F. Pedroso, Cynthia L. M. Pereira, Humberto O. Stumpf, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2021|Dalton Trans.|50|10707|doi:10.1039/D1DT01693H
CCDC 1469223: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Carlos B. Pinheiro, Marinez M. da Costa, Ana P. S. Fontes, Wallace C. Nunes, Francesc Lloret, Miguel Julve, Cynthia L. M. Pereira|2016|Cryst.Growth Des.|16|4094|doi:10.1021/acs.cgd.6b00613
CCDC 1883576: Experimental Crystal Structure Determination
Related Article: Nathália R. de Campos, Cintia A. Simosono, Iara M. Landre Rosa, Rafaela M. R. da Silva, Antônio C. Doriguetto, Walace D. do Pim, Tatiana R. Gomes Simões, Ana Karoline S. M. Valdo, Felipe T. Martins, Charlie V. Sarmiento, Wallace C. Nunes, Guilherme P. Guedes, Emerson F. Pedroso, Cynthia L. M. Pereira, Humberto O. Stumpf, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2021|Dalton Trans.|50|10707|doi:10.1039/D1DT01693H
CCDC 1469222: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Carlos B. Pinheiro, Marinez M. da Costa, Ana P. S. Fontes, Wallace C. Nunes, Francesc Lloret, Miguel Julve, Cynthia L. M. Pereira|2016|Cryst.Growth Des.|16|4094|doi:10.1021/acs.cgd.6b00613
CCDC 927505: Experimental Crystal Structure Determination
Related Article: Walace D. do Pim, Willian X. C. Oliveira, Marcos A. Ribeiro, Érica N. de Faria, Ivo F. Teixeira, Humberto O. Stumpf, Rochel M. Lago, Cynthia L. M. Pereira, Carlos B. Pinheiro, João C. D. Figueiredo-Júnior, Wallace C. Nunes, Patterson P. de Souza, Emerson F. Pedroso, María Castellano, Joan Cano, Miguel Julve|2013|Chem.Commun.|49|10778|doi:10.1039/C3CC46242K
CCDC 1034455: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Marcos A. Ribeiro, Carlos B. Pinheiro, Marinez M. da Costa, Ana Paula S. Fontes, Wallace C. Nunes, Danielle Cangussu, Miguel Julve, Humberto O. Stumpf, Cynthia L. M. Pereira|2015|Cryst.Growth Des.|15|1325|doi:10.1021/cg5017388
CCDC 1993352: Experimental Crystal Structure Determination
Related Article: Nathália R. de Campos, Cintia A. Simosono, Iara M. Landre Rosa, Rafaela M. R. da Silva, Antônio C. Doriguetto, Walace D. do Pim, Tatiana R. Gomes Simões, Ana Karoline S. M. Valdo, Felipe T. Martins, Charlie V. Sarmiento, Wallace C. Nunes, Guilherme P. Guedes, Emerson F. Pedroso, Cynthia L. M. Pereira, Humberto O. Stumpf, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2021|Dalton Trans.|50|10707|doi:10.1039/D1DT01693H
CCDC 927507: Experimental Crystal Structure Determination
Related Article: Walace D. do Pim, Willian X. C. Oliveira, Marcos A. Ribeiro, Érica N. de Faria, Ivo F. Teixeira, Humberto O. Stumpf, Rochel M. Lago, Cynthia L. M. Pereira, Carlos B. Pinheiro, João C. D. Figueiredo-Júnior, Wallace C. Nunes, Patterson P. de Souza, Emerson F. Pedroso, María Castellano, Joan Cano, Miguel Julve|2013|Chem.Commun.|49|10778|doi:10.1039/C3CC46242K
CCDC 1034458: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Marcos A. Ribeiro, Carlos B. Pinheiro, Marinez M. da Costa, Ana Paula S. Fontes, Wallace C. Nunes, Danielle Cangussu, Miguel Julve, Humberto O. Stumpf, Cynthia L. M. Pereira|2015|Cryst.Growth Des.|15|1325|doi:10.1021/cg5017388
CCDC 1830421: Experimental Crystal Structure Determination
Related Article: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira|2020|Dalton Trans.|49|16106|doi:10.1039/D0DT02497J
CCDC 927506: Experimental Crystal Structure Determination
Related Article: Walace D. do Pim, Willian X. C. Oliveira, Marcos A. Ribeiro, Érica N. de Faria, Ivo F. Teixeira, Humberto O. Stumpf, Rochel M. Lago, Cynthia L. M. Pereira, Carlos B. Pinheiro, João C. D. Figueiredo-Júnior, Wallace C. Nunes, Patterson P. de Souza, Emerson F. Pedroso, María Castellano, Joan Cano, Miguel Julve|2013|Chem.Commun.|49|10778|doi:10.1039/C3CC46242K
CCDC 1469226: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Carlos B. Pinheiro, Marinez M. da Costa, Ana P. S. Fontes, Wallace C. Nunes, Francesc Lloret, Miguel Julve, Cynthia L. M. Pereira|2016|Cryst.Growth Des.|16|4094|doi:10.1021/acs.cgd.6b00613
CCDC 1958345: Experimental Crystal Structure Determination
Related Article: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira|2020|Dalton Trans.|49|16106|doi:10.1039/D0DT02497J
CCDC 1883577: Experimental Crystal Structure Determination
Related Article: Nathália R. de Campos, Cintia A. Simosono, Iara M. Landre Rosa, Rafaela M. R. da Silva, Antônio C. Doriguetto, Walace D. do Pim, Tatiana R. Gomes Simões, Ana Karoline S. M. Valdo, Felipe T. Martins, Charlie V. Sarmiento, Wallace C. Nunes, Guilherme P. Guedes, Emerson F. Pedroso, Cynthia L. M. Pereira, Humberto O. Stumpf, Francesc Lloret, Miguel Julve, Maria Vanda Marinho|2021|Dalton Trans.|50|10707|doi:10.1039/D1DT01693H
CCDC 1034457: Experimental Crystal Structure Determination
Related Article: Willian X. C. Oliveira, Marcos A. Ribeiro, Carlos B. Pinheiro, Marinez M. da Costa, Ana Paula S. Fontes, Wallace C. Nunes, Danielle Cangussu, Miguel Julve, Humberto O. Stumpf, Cynthia L. M. Pereira|2015|Cryst.Growth Des.|15|1325|doi:10.1021/cg5017388
CCDC 1958347: Experimental Crystal Structure Determination
Related Article: Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, João Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira|2020|Dalton Trans.|49|16106|doi:10.1039/D0DT02497J