RESUMO
A series of diruthenium(II), [Ru(2)(tidf)Cl(2)(H(2)O)(2)] x H(2)O, diiron(II) [Fe(2)(tidf)(MeOH)(4)](ClO(4))(2) and mixed ruthenium(II)-iron(II) [Ru(MeOH)(2)FeCl(H(2)O)(tidf)](ClO(4)) (tidf=a two compartment tetraiminediphenolate macrocycle) complexes were prepared and characterized by elemental analysis, FTIR, UV-vis, cyclic voltammetry and semi-empirical molecular mechanics calculations.
Assuntos
Compostos Heterocíclicos com 3 Anéis/química , Ferro/química , Compostos Organometálicos/química , Rutênio/química , Magnésio/química , Modelos Moleculares , Oxirredução , Espectrofotometria , Espectrofotometria Infravermelho , Espectrofotometria Ultravioleta , Espectroscopia de MossbauerRESUMO
Molecular modeling and a detailed spectroscopic characterization of the macrocyclic complex [Co(dohpn)(CN)(2)] (dohpn=2,3,9,10-tetramethyl-1,4,8,11-tetraazaundecane-1,3,8,10-tetraen-11-ol-1-olate and py=pyridine) is herein presented. Structural, electronic and vibrational features are discussed and assignments were proposed on the basis of semi-empirical (molecular mechanics, ZINDO/S and PM3) calculations.
Assuntos
Cianetos/química , Modelos Moleculares , Compostos Organometálicos/química , Cobalto/química , Iminas/química , Compostos Macrocíclicos/química , Oximas/química , Espectrofotometria InfravermelhoRESUMO
Herein we report the synthetic route and detailed characterization of the macrocyclic complex [Co(dohpn)(SCN)2] and its linkage isomer (dohpn=2,3,9,10-tetramethyl-1,4,8,11-tetraazaundecane-1,3,8,10-tetraen-11-ol-1-olate and py=pyridine) based on analytical, spectroscopic and electrochemical methods. Structural, vibrational and electronic features are discussed and a coherent assignment is proposed on the basis of semi-empirical theoretical calculations.
Assuntos
Cobalto/química , Compostos Macrocíclicos/química , Tiocianatos/química , Elétrons , Isomerismo , Espectrofotometria InfravermelhoRESUMO
The title complex [Fe(II)(tidf-H2)(H2O)2](ClO4)2*H(2)O (tidf-H2 = tetraiminediphenolate ligand) has been prepared from a transmetallation reaction between [Mg2(tidf)](NO3)2*4H2O and an iron(II) salt in methanolic solutions under inert atmosphere conditions. It was characterized by analytical, magnetic and spectroscopic methods (Mossbauer, FTIR, UV-vis), by cyclic voltammetry as well as spectroelectrochemistry.
