TY - JOUR
T1 - One-dimensional coordination polymers of MnII, CuII, and ZnII supported by carboxylate-appended (2-Pyridyl)alkylamine ligands - structure and magnetism
AU - Arora, Himanshu
AU - Lloret, Francesc
AU - Mukherjee, Rabindranath
PY - 2009/8
Y1 - 2009/8
N2 - Four new complexes [MnIIL1OO)(H2O)] [ClO4]H2O (1), [ZnIIIL1OO)][ClO 4]H2O (2), [CuII(L3OO)][CF 3S03]-.H2O (3), and [Zn11JL 3OO)][ClO4] (4) (L1OO- = 3-[(2-(pyridine-2-yl) ethyl){2-(pyridine-2-yl)methyl}amino]propionate; L3OO- = 3[(2-(pyridine-2-yl)ethyl)((dimethylamino)ethyl}amino]propionate) have been synthesized and characterized by elemental analysis, IR, and UV/Vis spectroscopy. Structural analysis revealed that 1, 3, and 4 are one-dimensional chain-like coordination polymers. In 1 distorted octahedral MnN 3O3 and in 3 square-pyramidal CuN3O2 coordination is satisfied by three nitrogen atoms and an appended carboxylate oxygen atom, of the ligand, and. an oxygen atom, belonging to the carboxylate group of an adjacent molecule. In 4 trigonal bipyramidal ZnN3O 2 coordination environment is provided by two nitrogen atoms and an appended carboxylate oxygen, atom, of the Iigand in the equatorial plane, and. the two axial positions are satisfied by a tertiary amine nitrogen and an oxygen, atom. belonging to the carboxylate group of an adjacent molecule. In 1 the Mn11 center is coordinated by an additional water molecule. In these complexes each monomelic unit is sequentially connected by syn-anti carboxylate bridges. Temperature-dependent magnetic susceptibilities for 1 and 3 are measured, revealing antiferromagnetic interactions through syn-anti carboxylate bridges between the M11 centers. Analysis of the crystal packing diagram reveals that in 1 extensive Ti-Ji stacking involving alternate pyridine rings of adjacent ID chain exists, which eventually lead to the formation of a 2D network structure.
AB - Four new complexes [MnIIL1OO)(H2O)] [ClO4]H2O (1), [ZnIIIL1OO)][ClO 4]H2O (2), [CuII(L3OO)][CF 3S03]-.H2O (3), and [Zn11JL 3OO)][ClO4] (4) (L1OO- = 3-[(2-(pyridine-2-yl) ethyl){2-(pyridine-2-yl)methyl}amino]propionate; L3OO- = 3[(2-(pyridine-2-yl)ethyl)((dimethylamino)ethyl}amino]propionate) have been synthesized and characterized by elemental analysis, IR, and UV/Vis spectroscopy. Structural analysis revealed that 1, 3, and 4 are one-dimensional chain-like coordination polymers. In 1 distorted octahedral MnN 3O3 and in 3 square-pyramidal CuN3O2 coordination is satisfied by three nitrogen atoms and an appended carboxylate oxygen atom, of the ligand, and. an oxygen atom, belonging to the carboxylate group of an adjacent molecule. In 4 trigonal bipyramidal ZnN3O 2 coordination environment is provided by two nitrogen atoms and an appended carboxylate oxygen, atom, of the Iigand in the equatorial plane, and. the two axial positions are satisfied by a tertiary amine nitrogen and an oxygen, atom. belonging to the carboxylate group of an adjacent molecule. In 1 the Mn11 center is coordinated by an additional water molecule. In these complexes each monomelic unit is sequentially connected by syn-anti carboxylate bridges. Temperature-dependent magnetic susceptibilities for 1 and 3 are measured, revealing antiferromagnetic interactions through syn-anti carboxylate bridges between the M11 centers. Analysis of the crystal packing diagram reveals that in 1 extensive Ti-Ji stacking involving alternate pyridine rings of adjacent ID chain exists, which eventually lead to the formation of a 2D network structure.
KW - Antiferromagnetic coupling
KW - Bridging ligands
KW - Carboxylate ligands
KW - Coordination polymers
KW - Crystal structures
KW - Magnetic properties
KW - Noncovalent interactions
KW - Structure elucidation
UR - http://www.scopus.com/inward/record.url?scp=67949104895&partnerID=8YFLogxK
U2 - 10.1002/ejic.200900326
DO - 10.1002/ejic.200900326
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AN - SCOPUS:67949104895
SN - 1434-1948
SP - 3317
EP - 3325
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
IS - 22
ER -