Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió acceptadaData de publicació
Tots els drets reservats
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/162599
A 2D rhomboidal system of manganese(II) [Mn(3-MeC6H4COO)2(H2O)2]n with spin canting: rationalization of the magnetic exchange
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
The crystal structure of Mn(II) carboxylate with 3-methylbenzoate as a bridging ligand [Mn(3-MeC6H4COO)2(H2O)2]n shows a rhomboidal layer, where each pair of neighbor Mn(II) ions are bridged through only one carboxylate group with a syn-anti conformation. The magnetic exchange between neighbor ions is weakly antiferromagnetic (J = −0.52 cm−1, g = 2.04), and at low temperature the system shows spin canting with TB = 3.8 K. Computational studies, based on periodic calculations of the energies of the significant spin states on the magnetic cell and some higher supercells, corroborate the weak AF interaction between the adjacent Mn(II) ions and preclude the negligible effect of frustration caused by very weak interactions between the non-adjacent ions in the magnetic response of the system. The results provide compelling evidence that the observed spin canting is due to the local coordination geometry of the manganese ions leading to two antiferromagnetically coupled subnets with different axial vectors.
Matèries
Matèries (anglès)
Citació
Citació
GARCIA-CIRERA, B., COSTA SALA, Ramon, MOREIRA, Ibério de pinho ribeiro, FONT BARDIA, Ma. mercedes, CORBELLA I CORDOMÍ, Montserrat. A 2D rhomboidal system of manganese(II) [Mn(3-MeC6H4COO)2(H2O)2]n with spin canting: rationalization of the magnetic exchange. _Dalton Transactions_. 2018. Vol. 47, núm. 11, pàgs. 3717-3724. [consulta: 21 de gener de 2026]. ISSN: 1477-9226. [Disponible a: https://hdl.handle.net/2445/162599]