0000000001299388
AUTHOR
Horst Puschmann
Single-Ion Magnetic Behavior in CoII-CoIII Mixed-Valence Dinuclear and Pseudodinuclear Complexes
Two CoII–CoIII mixed-valence complexes of molecularformulas [Co2(H2L)2(H2O)2][Co2(H2L)2(H2O)(m-phth)]·8(H2O) {1;H2L2–= 2-[(2-hydroxy-3-methoxybenzylidene)amino]-2-(hydroxymethyl)propane-1,3-diolato, m-phth = 1,3-benzene-dicarboxylate} and [Co4(H2L)4(H2O)2(ppda)]·2(dmf)·3.2(H2O) {2;ppda = 1,4-phenylenediacrylate; dmf = N,N-dimethyl-formamide} were synthesized and characterized by single-crys-tal X-ray diffraction and magnetic studies at low temperature.The structural determination reveals that 1 is composed of di-nuclear ion pairs, namely, a cationic [Co2(H2L)2(H2O)2]+(1+) andan anionic [Co2(H2L)2(H2O)(m-phth)]–(1–) unit. In each of these ions, the CoIIand CoIIIcenters present distorted octa…
Field-induced slow magnetic relaxation in mixed valence di- and tri-nuclear CoII–CoIII complexes
Two novel mixed valence CoII–CoIII complexes, namely [CoIICoIII(L1)(ab)(mb)2(H2O)]·dmf (1) and [CoIII2CoII(L2)4(H2O)4]·2H2O (2) [H2L1 = (E)-2-((1-hydroxybutan-2-ylimino)methyl)-6-methoxyphenol, ab = 2-amino-butan-1-ol anion, mb = p-methyl benzoate, H2L2 = 3-((2-hydroxy-3-methoxy-benzylidene)-amino)-propionic acid, and dmf = N,N-dimethyl-formamide], were synthesized and characterized by single crystal X-ray diffraction and magnetic studies at low temperature. The structure determination reveals that both complexes belong to the monoclinic system with P21/c (1) and I2/a (2) space groups. Complex 1 is a dinuclear CoIIICoII compound with distorted octahedral cobalt centers showing different coo…
CCDC 1536659: Experimental Crystal Structure Determination
Related Article: Aparup Paul, Marta Viciano-Chumillas, Horst Puschmann, Joan Cano, Subal Chandra Manna|2020|Dalton Trans.|49|9516|doi:10.1039/D0DT00588F
CCDC 1977640: Experimental Crystal Structure Determination
Related Article: Aparup Paul, Marta Viciano-Chumillas, Horst Puschmann, Joan Cano, Subal Chandra Manna|2020|Dalton Trans.|49|9516|doi:10.1039/D0DT00588F
CCDC 1518364: Experimental Crystal Structure Determination
Related Article: Soumen Manna, Apurba Bhunia, Soumen Mistri, Julia Vallejo, Ennio Zangrando, Horst Puschmann, Joan Cano, Subal Chandra Manna|2017|Eur.J.Inorg.Chem.||2585|doi:10.1002/ejic.201700046
CCDC 1518365: Experimental Crystal Structure Determination
Related Article: Soumen Manna, Apurba Bhunia, Soumen Mistri, Julia Vallejo, Ennio Zangrando, Horst Puschmann, Joan Cano, Subal Chandra Manna|2017|Eur.J.Inorg.Chem.||2585|doi:10.1002/ejic.201700046