0000000001304501
AUTHOR
Guilherme P. Guedes
Synthesis, crystal structure and magnetic properties of a novel heterobimetallic rhenium(IV)-dysprosium(III) chain.
The use of the mononuclear rhenium(IV) precursor [ReBr5 (H2 pydc)](-) (H2 pydc=3,5-pyridinedicarboxylic acid) as a metalloligand towards dysprosium(III) afforded the first heterobimetallic Re(IV) -Dy(III) complex. Crystal structures and static and dynamic magnetic properties of both rhenium-containing species are reported herein. The 5d-4f compound shows an extended 1D structure and the AC magnetic measurements reveal frequency dependence at low temperature suggesting slow relaxation of the magnetization.
Synthesis, crystal structures and magnetic properties of a P-stereogenic ortho-(4-amino-tempo)phosphinic amide radical and its CuII complex
The synthesis of phosphinic amides containing one 4-amino-TEMPO substituent at the ortho position has been achieved through copper(I) catalyzed cross-coupling reactions of ortho-iodophosphinic amides with 4-amino-TEMPO. The method has been extended to the preparation of the first example of a P-stereogenic ortho-(4-amino-tempo)phosphinic amide radical 10. The reaction of 10 with Cu(hfac)2 afforded the P-stereogenic CuII complex 19. The crystal structure of both chiral compounds is reported. The molecular structure of 10 consists of a supramolecular zig-zag chain formed by intermolecular hydrogen bonds between the NH group of the phosphinic amide moiety and the nitroxide oxygen atom. In comp…
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 : …
Synthesis, structural characterization and electrochemical and magnetic studies of M(hfac)2 (M = CuII, CoII) and Nd(hfac)3 complexes of 4-amino-TEMPO
Three mononuclear complexes [M(hfac)x(ATEMPO)y], where M = Cu (11) and Co (12), x = y = 2; M = Nd (13), x = 4, y = 1, and two polynuclear complexes [{Cu(hfac)2(ATEMPO)}n], where n = 2 (14) and 4 (15), were obtained by the reaction of M(hfac)x (M = CuII, CoII, NdIII; x = 2, 3) with 4-amino-TEMPO (4-amino-2,2,6,6-tetramethylpiperidin-N-oxyl) in good yields and their structural, electrochemical and magnetic properties were examined. In all cases, the radical is coordinated to the metal through the amino group, except 15, and the metal ions have an octahedral geometry, except 13. Different coordination architectures of the copper complexes were obtained as a function of the stoichiometry and so…
CCDC 1025298: Experimental Crystal Structure Determination
Related Article: Carolina Pejo, Guilherme P. Guedes, Miguel A. Novak, Nivaldo L. Speziali, Raúl Chiozzone, Miguel Julve, Francesc Lloret, Maria G. F. Vaz, Ricardo González|2015|Chem.-Eur.J.|21|8696|doi:10.1002/chem.201500168
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 1025299: Experimental Crystal Structure Determination
Related Article: Carolina Pejo, Guilherme P. Guedes, Miguel A. Novak, Nivaldo L. Speziali, Raúl Chiozzone, Miguel Julve, Francesc Lloret, Maria G. F. Vaz, Ricardo González|2015|Chem.-Eur.J.|21|8696|doi:10.1002/chem.201500168
CCDC 1978264: Experimental Crystal Structure Determination
Related Article: Yolanda Navarro, Guilherme P. Guedes, Joan Cano, Pilar Ocón, María José Iglesias, Francisco Lloret, Fernando López-Ortiz|2020|Dalton Trans.|49|6280|doi:10.1039/D0DT00541J
CCDC 2011812: Experimental Crystal Structure Determination
Related Article: Yolanda Navarro, Guilherme P. Guedes, Miguel A. del Águila-Sánchez, María José Iglesias, Francisco Lloret, Fernando López-Ortiz|2021|Dalton Trans.|50|2585|doi:10.1039/D0DT04298F
CCDC 2011813: Experimental Crystal Structure Determination
Related Article: Yolanda Navarro, Guilherme P. Guedes, Miguel A. del Águila-Sánchez, María José Iglesias, Francisco Lloret, Fernando López-Ortiz|2021|Dalton Trans.|50|2585|doi:10.1039/D0DT04298F
CCDC 1978261: Experimental Crystal Structure Determination
Related Article: Yolanda Navarro, Guilherme P. Guedes, Joan Cano, Pilar Ocón, María José Iglesias, Francisco Lloret, Fernando López-Ortiz|2020|Dalton Trans.|49|6280|doi:10.1039/D0DT00541J
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 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 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 1978263: Experimental Crystal Structure Determination
Related Article: Yolanda Navarro, Guilherme P. Guedes, Joan Cano, Pilar Ocón, María José Iglesias, Francisco Lloret, Fernando López-Ortiz|2020|Dalton Trans.|49|6280|doi:10.1039/D0DT00541J
CCDC 1978262: Experimental Crystal Structure Determination
Related Article: Yolanda Navarro, Guilherme P. Guedes, Joan Cano, Pilar Ocón, María José Iglesias, Francisco Lloret, Fernando López-Ortiz|2020|Dalton Trans.|49|6280|doi:10.1039/D0DT00541J
CCDC 1978260: Experimental Crystal Structure Determination
Related Article: Yolanda Navarro, Guilherme P. Guedes, Joan Cano, Pilar Ocón, María José Iglesias, Francisco Lloret, Fernando López-Ortiz|2020|Dalton Trans.|49|6280|doi:10.1039/D0DT00541J
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