0000000000123153
AUTHOR
Maykon Alves Lemes
Europium(III), Terbium(III), and Gadolinium(III) Oxamato-Based Coordination Polymers: Visible Luminescence and Slow Magnetic Relaxation
The reaction of aqueous solutions of EuIII, TbIII, and GdIII ions with Na2Hpcpa [H3pcpa = N-(4-carboxyphenyl)oxamic acid] afforded three new isostructural oxamate-containing lanthanide(III) coordination polymers of general formula {LnIII2(Hpcpa)3(H2O)5·H2O}n [Ln = Eu (1),Tb (2), and Gd(3)]. Their structure is made up of neutral zigzag chains running parallel to the [101] direction where double syn-syn carboxylate(oxamate)-bridged dilanthanide(III) pairs (Ln1 and Ln2) are linked by three Hpcpa2- ligands, one of them with the μ-κ2O,O':κO″ coordination mode and the other two with the μ3-κ2O,O':κO″:κO'''. Additionally, two of those chains are interlinked through hydrogen bonding and π-π type in…
Unprecedented intramolecular pancake bonding in a {Dy2} single-molecule magnet
The first example of unique coordination induced intramolecular pancake bonding was achieved through the reduction of two bis(pyrazolyl)-tetrazine ligands, affording [MIII2(μ-(bpytz)2)(THMD)4](M = Dy, Y; bpytz = 3,6-bis(3,5-dimethyl-pyrazolyl)-1,2,4,5-tetrazine; TMHD = 2,2,6,6-tetramethyl-3,5-heptanedionate). To provide a cohesive magneto-structural correlation, the mono bis(pyrazolyl)-tetrazine bridged congener [DyIII2(μ-bpytz)(THMD)6]·4(C6H6) was also isolated. Both metal complexes exhibit single-molecule magnet behaviour under an applied dc field.
CCDC 1992815: Experimental Crystal Structure Determination
Related Article: Jhonny Willians de Oliveira Maciel, Maykon Alves Lemes, Ana Karoline Valdo, Renato Rabelo, Felipe Terra Martins, Lauro June Queiroz Maia, Ricardo Costa de Santana, Francesc Lloret, Miguel Julve, Danielle Cangussu|2021|Inorg.Chem.|60|6176|doi:10.1021/acs.inorgchem.0c03226
CCDC 1992813: Experimental Crystal Structure Determination
Related Article: Jhonny Willians de Oliveira Maciel, Maykon Alves Lemes, Ana Karoline Valdo, Renato Rabelo, Felipe Terra Martins, Lauro June Queiroz Maia, Ricardo Costa de Santana, Francesc Lloret, Miguel Julve, Danielle Cangussu|2021|Inorg.Chem.|60|6176|doi:10.1021/acs.inorgchem.0c03226
CCDC 1992814: Experimental Crystal Structure Determination
Related Article: Jhonny Willians de Oliveira Maciel, Maykon Alves Lemes, Ana Karoline Valdo, Renato Rabelo, Felipe Terra Martins, Lauro June Queiroz Maia, Ricardo Costa de Santana, Francesc Lloret, Miguel Julve, Danielle Cangussu|2021|Inorg.Chem.|60|6176|doi:10.1021/acs.inorgchem.0c03226