Matos, Catiucia R. M. O.; Sarmiento, Charlie V.; C. Silva, Henrique; Ferreira, Glaucio B.; Guedes, Guilherme P.; Nunes, Wallace C.; Ronconi, Celia M. published their research in Dalton Transactions in 2021. The article was titled 《Field-induced single-ion magnets exhibiting tri-axial anisotropy in a 1D Co(II) coordination polymer with a rigid ligand 4,4′-(buta-1,3-diyne-1,4-diyl)dibenzoate》.Product Details of 619-58-9 The article contains the following contents:
Herein a 1-dimensional Co(II) coordination polymer [Co(η1-L1)(η2-L1)(py)2(H2O)]n (CoCP) was synthesized using the rigid H2L1 proligand, containing a long spacer bearing two triple bonds. Single-crystal x-ray diffraction showed that Co(II) adopts a distorted octahedral geometry. The state-averaged complete active SCF (SA-CASSCF) calculation showed that the ground state of CoCP is a high spin quartet with a highly multiconfigurational character of its electronic structure. Due to the large intra- and intermol. distances between the spin carriers, the magnetic interactions are negligible and the zero-field splitting (ZFS) effects of Co(II) ions are predominant. This behavior was confirmed by d.c. (d.c.) magnetic measurements and theor. calculations using the broken-symmetry approach. Quantum chem. calculations indicate that CoCP has a neg. axial component possessing mixed tri-axial anisotropy. The d.c. magnetic susceptibility data were fitted with a Griffith-Figgis Hamiltonian and the obtained parameters are in good agreement with those simulated by the ab initio calculation A.c. (a.c.) magnetic measurements showed a field induced slow magnetic relaxation in CoCP, which is attributed to the hyperfine interaction effects. After reading the article, we found that the author used 4-Iodobenzoic acid(cas: 619-58-9Product Details of 619-58-9)
4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides.Product Details of 619-58-9 The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine.
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com