0000000001312611
AUTHOR
Tamires S. Fernandes
2D and 3D mixed MII/CuIImetal–organic frameworks (M = Ca and Sr) withN,N′-2,6-pyridinebis(oxamate) and oxalate: preparation and magneto-structural study
Three heterobimetallic complexes of formula [Ca2Cu3(mpyba)2(2-apyma)(H2O)7]·8.3H2O (1), [Sr2Cu3(mpyba)2(2-apyma)(H2O)8]·11.6H2O (2) and [Sr4.5Cu4(mpyba)4(ox)(H2O)20]·8.5H2O (3) [H4mpyba = N,N'-2,6-pyridinebis(oxamic acid), 2-apyma = 2-(6-aminopyridinyl)oxamate and ox = oxalate] have been synthesized and structurally characterized. Complexes 1 and 2 are isostructural compounds, with tricopper(ii) units having mpyba and its hydrolytic product (2-apyma) as ligands. They are interlinked through strontium(ii) (1) and calcium(ii) (2) ions to afford neutral two-dimensional networks. Two of the copper(ii) ions are five-coordinate in distorted square pyramidal (Cu3) and trigonal bipyramidal (Cu1) su…
Dicopper(II) Metallacyclophanes with N,N'-2,6-Pyridinebis(oxamate): Solution Study, Synthesis, Crystal Structures, and Magnetic Properties.
The complexing ability of copper(II) in solution by the ligand N,N'-2,6-pyridinebis(oxamic acid) (H4mpyba, H4L) was determined through potentiometric and UV-vis spectroscopy at 25 °C and 0.15 M NaCl. The logarithms of the equilibrium constants for its copper(II) complexes according to the eqs 2H2L + 2Cu ⇆ [Cu2(H2L)2], 2H2L + 2Cu ⇆ [Cu2(H2L) (HL)] + H, 2H2L + 2Cu ⇆ [Cu2(HL)2] + 2H, 2H2L + 2Cu ⇆ [Cu2(HL)(L)] + 3H, and 2H2L + 2Cu ⇆ [Cu2L2] + 4H were 12.02(7), 8.04(5), 1.26(6), -7.51(6), and -16.36(6), respectively. The knowledge of the solution behavior has supported the synthesis of three new compounds bearing the common building block Cu2L2(4-). Their formulas are (Me4N)4[Cu2(mpyba)2(H2O)2]·…
CCDC 1530054: Experimental Crystal Structure Determination
Related Article: Tamires S. Fernandes, Wanessa D. C. Melo, Lucas H. G. Kalinke, Renato Rabelo, Ana K. Valdo, Cameron C. da Silva, Felipe T. Martins, Pedro Amorós, Francesc Lloret, Miguel Julve, Danielle Cangussu|2018|Dalton Trans.|47|11539|doi:10.1039/C8DT01686K
CCDC 1053439: Experimental Crystal Structure Determination
Related Article: Tamires S. Fernandes, Ramon S. Vilela, Ana K. Valdo, Felipe T. Martins, Enrique García-España, Mario Inclán, Joan Cano, Francesc Lloret, Miguel Julve, Humberto O. Stumpf, and Danielle Cangussu|2016|Inorg.Chem.|55|2390|doi:10.1021/acs.inorgchem.5b02786
CCDC 1530055: Experimental Crystal Structure Determination
Related Article: Tamires S. Fernandes, Wanessa D. C. Melo, Lucas H. G. Kalinke, Renato Rabelo, Ana K. Valdo, Cameron C. da Silva, Felipe T. Martins, Pedro Amorós, Francesc Lloret, Miguel Julve, Danielle Cangussu|2018|Dalton Trans.|47|11539|doi:10.1039/C8DT01686K
CCDC 1053438: Experimental Crystal Structure Determination
Related Article: Tamires S. Fernandes, Ramon S. Vilela, Ana K. Valdo, Felipe T. Martins, Enrique García-España, Mario Inclán, Joan Cano, Francesc Lloret, Miguel Julve, Humberto O. Stumpf, and Danielle Cangussu|2016|Inorg.Chem.|55|2390|doi:10.1021/acs.inorgchem.5b02786
CCDC 1053437: Experimental Crystal Structure Determination
Related Article: Tamires S. Fernandes, Ramon S. Vilela, Ana K. Valdo, Felipe T. Martins, Enrique García-España, Mario Inclán, Joan Cano, Francesc Lloret, Miguel Julve, Humberto O. Stumpf, and Danielle Cangussu|2016|Inorg.Chem.|55|2390|doi:10.1021/acs.inorgchem.5b02786
CCDC 1530056: Experimental Crystal Structure Determination
Related Article: Tamires S. Fernandes, Wanessa D. C. Melo, Lucas H. G. Kalinke, Renato Rabelo, Ana K. Valdo, Cameron C. da Silva, Felipe T. Martins, Pedro Amorós, Francesc Lloret, Miguel Julve, Danielle Cangussu|2018|Dalton Trans.|47|11539|doi:10.1039/C8DT01686K