Resumen
A dinuclear cobalt(ii), [Co2(κ4-O,O′,N,N′-L)2(μ-O,O′-HCOO)](ClO4)·(C2H5)2O (1) and a linear mixed valence trinuclear manganese, [Mn3(κ4-O,O′,N,N′-L)2(μ-CH3O)2(μ-O,O′-CH3COO)2]·2(C2H5)2O (2) complexes with the ligand N-(2-pyridyl-methyl)-N,N-bis-[2′-hydroxy-5′-methyl-benzyl]-amine (H2L) are reported. For both complexes the ligand is present in the deprotonated form. The coordination sphere of the cobalt centres can be described as slightly distorted octahedral with two bridging O-phenoxo, one N-pyridine, one N-amine, one terminal O-phenoxo and one bridging O-formate donor atoms. Interestingly, the bridging formate resulted from the aerial oxidation of methanol. The manganese complex (2) has a linear mixed valence MnIII-MnII-MnIII, with the MnII and MnIII centres bridged by alkoxo, carboxylate and phenoxo groups. Cyclic voltammetry studies show both metal and ligand centred redox processes consistent with the structure of the complexes. Complex (2) has an S = 3/2 ground state; magnetic susceptibility measurements indicate a weak antiferromagnetic interaction. The best fit of the magnetic susceptibility data as a function of temperature was obtained using a conventional trinuclear linear model [H = -2J(S1S2 + S1S3)] with J = -0.79 cm-1 and g = 1.99.
| Idioma original | English |
|---|---|
| Páginas (desde-hasta) | 6164-6170 |
| Número de páginas | 7 |
| Publicación | New Journal of Chemistry |
| Volumen | 40 |
| N.º | 7 |
| DOI | |
| Estado | Published - 1 ene 2016 |
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ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Materials Chemistry
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Dinuclear cobalt(III) and mixed valence trinuclear MnIII-MnII-MnIII complexes with a tripodal bridging pyridylaminophenol ligand. / Davila, Ruben; Farias, Nicolas; Carolina Sañudo, E.; Vega, Andrés; Escuer, Albert; Soler, Mónica; Manzur, Jorge.
En: New Journal of Chemistry, Vol. 40, N.º 7, 01.01.2016, p. 6164-6170.Resultado de la investigación: Article
TY - JOUR
T1 - Dinuclear cobalt(III) and mixed valence trinuclear MnIII-MnII-MnIII complexes with a tripodal bridging pyridylaminophenol ligand
AU - Davila, Ruben
AU - Farias, Nicolas
AU - Carolina Sañudo, E.
AU - Vega, Andrés
AU - Escuer, Albert
AU - Soler, Mónica
AU - Manzur, Jorge
PY - 2016/1/1
Y1 - 2016/1/1
N2 - A dinuclear cobalt(ii), [Co2(κ4-O,O′,N,N′-L)2(μ-O,O′-HCOO)](ClO4)·(C2H5)2O (1) and a linear mixed valence trinuclear manganese, [Mn3(κ4-O,O′,N,N′-L)2(μ-CH3O)2(μ-O,O′-CH3COO)2]·2(C2H5)2O (2) complexes with the ligand N-(2-pyridyl-methyl)-N,N-bis-[2′-hydroxy-5′-methyl-benzyl]-amine (H2L) are reported. For both complexes the ligand is present in the deprotonated form. The coordination sphere of the cobalt centres can be described as slightly distorted octahedral with two bridging O-phenoxo, one N-pyridine, one N-amine, one terminal O-phenoxo and one bridging O-formate donor atoms. Interestingly, the bridging formate resulted from the aerial oxidation of methanol. The manganese complex (2) has a linear mixed valence MnIII-MnII-MnIII, with the MnII and MnIII centres bridged by alkoxo, carboxylate and phenoxo groups. Cyclic voltammetry studies show both metal and ligand centred redox processes consistent with the structure of the complexes. Complex (2) has an S = 3/2 ground state; magnetic susceptibility measurements indicate a weak antiferromagnetic interaction. The best fit of the magnetic susceptibility data as a function of temperature was obtained using a conventional trinuclear linear model [H = -2J(S1S2 + S1S3)] with J = -0.79 cm-1 and g = 1.99.
AB - A dinuclear cobalt(ii), [Co2(κ4-O,O′,N,N′-L)2(μ-O,O′-HCOO)](ClO4)·(C2H5)2O (1) and a linear mixed valence trinuclear manganese, [Mn3(κ4-O,O′,N,N′-L)2(μ-CH3O)2(μ-O,O′-CH3COO)2]·2(C2H5)2O (2) complexes with the ligand N-(2-pyridyl-methyl)-N,N-bis-[2′-hydroxy-5′-methyl-benzyl]-amine (H2L) are reported. For both complexes the ligand is present in the deprotonated form. The coordination sphere of the cobalt centres can be described as slightly distorted octahedral with two bridging O-phenoxo, one N-pyridine, one N-amine, one terminal O-phenoxo and one bridging O-formate donor atoms. Interestingly, the bridging formate resulted from the aerial oxidation of methanol. The manganese complex (2) has a linear mixed valence MnIII-MnII-MnIII, with the MnII and MnIII centres bridged by alkoxo, carboxylate and phenoxo groups. Cyclic voltammetry studies show both metal and ligand centred redox processes consistent with the structure of the complexes. Complex (2) has an S = 3/2 ground state; magnetic susceptibility measurements indicate a weak antiferromagnetic interaction. The best fit of the magnetic susceptibility data as a function of temperature was obtained using a conventional trinuclear linear model [H = -2J(S1S2 + S1S3)] with J = -0.79 cm-1 and g = 1.99.
UR - http://www.scopus.com/inward/record.url?scp=84978106451&partnerID=8YFLogxK
U2 - 10.1039/c5nj03670d
DO - 10.1039/c5nj03670d
M3 - Article
AN - SCOPUS:84978106451
VL - 40
SP - 6164
EP - 6170
JO - New Journal of Chemistry
JF - New Journal of Chemistry
SN - 1144-0546
IS - 7
ER -