2026-05-27T06:21:07Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/209952026-02-03T11:20:55Zcom_10630_2254col_10630_37953

Zinc(II), cobalt(II) and manganese(II) networks with phosphoserine ligand: Synthesis, crystal structures magnetic and conduction properties Vallejo, J. Salcedo, Inés R. Pérez-Colodrero, Rosario Mercedes Cabeza-Díaz, Aurelio Świtlicka, A. Cano, J. Viciano-Chumillas, María Fósforo - Compuestos Conductividad eléctrica Catalizadores Pilas de combustible A series of zinc(II), cobalt(II) and manganese(II) coordination networks with the phosphoserine ligand (Pser) is synthesized and characterized. Whereas in compounds 1 and 2 with the general formula [M(Pser)]n [M = Zn (1) and Co(2)], the metal(II) ion presents a tetrahedral geometry, in [Co(Pser)(H2O)2]n (3) and [Mn(Pser)(H2O)]n (4)], the metal(II) ions are in a distorted octahedral geometry. The 3D frameworks are formed by inorganic layers built up from MO4 or MO6 polyhedra and phosphate groups. These layers are linked by the carboxylate groups of the phosphoserine ligand. The presence of extended hydrogen bonding stabilizes the 3D network and favors the proton transfer leading to moderate proton conductors. The highest proton conductivity, 2.70·10−5 S cm−1 (at 80 ºC and 95% RH), is obtained for compound 3. Temperature dependent magnetic susceptibility measurements for 2−4 reveal predominant antiferromagnetic interactions between the paramagnetic metal(II) ions. 2021-02-25T12:42:46Z 2021-02-25T12:42:46Z 2017 journal article Dalton Trans., 2017, 46, 16570-16579 https://hdl.handle.net/10630/20995 10.1039/C7DT03474A eng open access The Royal Society of Chemistry