Synthesis and characterization of 1D coordination polymers of metal(II)-dicyanamido complexes

Mautner, Franz A.; Jantscher, Patricia V.; Fischer, Roland; Torvisco, Ana; Vicente, Ramón; Karsili, Tolga N. V.; Massoud, Salah S.

doi:10.1016/j.poly.2019.03.038

Cited by 13 publications

(17 citation statements)

References 88 publications

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“…The χ M T values decrease with decreasing the temperature and reaching a value of 1.11 cm 3 mol −1 K at 2 K. The decrease in the χ M T values when the temperature decreases is partially attributed to antiferromagnetic intra-chain interactions, but this can be assumed to display minor exchange interactions, which are mediated by the µ 1,5 -bridging dicyanamido bridges. This result is in agreement with previously published experimental data and MO calculations [63][64][65][66][67][68]. Therefore, in order to obtain an approximate estimate for the coupling constant, J, the magnetic behavior of the Co(II)-ion in axially distorted octahedral coordination may be well described with the effective spin S = 1/2 and strongly anisotropic g factor.…”

Section: Magnetic Datasupporting

confidence: 90%

“…The solid spectra of the three complexes are shown in Figures S5-S7. It is interesting to mention that the 1D polymeric complexes under investigation; regardless, they have the same MN4O2 with distorted octahedra, they are not isostructural with those reported for the analogous 1D systems of catena-[M(µ1,5-dca)2(L)2] (L = 4-hydroxymethylpyridine or 3-aminopyridine [10,63]). The 1D polymeric complexes with these two coligands crystallize in the monoclinic system (P21/c, space group no.…”

Section: Preparation and Spectroscopy (Ir Uv/vis) Of Complexesmentioning

confidence: 77%

“…56), respectively, and their metal(II) centers have site symmetry 2, as the two "trans-axial" pyridine-N-oxide molecules are not ligated vertical to the "equatorial" MN 4 (dca) plane. In the Co(II) complex, the pyridine-N-oxide molecules show the opposite orientation when viewed along the chain direction It is interesting to mention that the 1D polymeric complexes under investigation; regardless, they have the same MN 4 O 2 with distorted octahedra, they are not isostructural with those reported for the analogous 1D systems of catena-[M(µ 1,5 -dca) 2 (L) 2 ] (L = 4-hydroxymethylpyridine or 3-aminopyridine [10,63]). The 1D polymeric complexes with these two coligands crystallize in the monoclinic system (P2 1 /c, space group no.…”

Section: Preparation and Spectroscopy (Ir Uv/vis) Of Complexesmentioning

confidence: 86%

“…To [10,63]. As in these structures, the adjacent pyridine rings of 1-3 also constitute extra stability through the non-covalent π-π ring-ring interactions along the chain direction.…”

Section: Discussionmentioning

confidence: 99%

“…(L = 4-hydroxymethylpyridine or 3-aminopyridine) [10,63], where the pyridine rings of adjacent 4-methoxypyridine-N-oxide molecules in 1-3 form non-covalent π-π ring-ring interactions along the chain direction, as summarized in Table 1.…”

Section: Crystal Structuresmentioning

confidence: 99%

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Structure, DFT Calculations, and Magnetic Characterization of Coordination Polymers of Bridged Dicyanamido-Metal(II) Complexes

et al. 2019

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Three coordination polymers of metal(II)-dicyanamido (dca) complexes with 4-methoxypyridine-N-oxide (4-MOP-NO); namely, catena-[Co(µ1,5-dca)2(4-MOP-NO)2] (1), catena-[Mn(µ1,5-dca)2(4-MOP-NO)2] (2), catena-[Cd(µ1,5-dca)2(4-MOP-NO)2] (3), and the mononuclear [Cu(κ1dca)2(4-MOP-NO)2] (4), were synthesized in this research. The complexes were analyzed by single crystal X-ray diffraction as well as spectroscopic methods (UV/vis, IR). The polymeric 1-D chains in complexes 1–3 were achieved by the doubly µ1,5-bridging dca ligands and the O-donor atoms of two axial 4-MOP-NO molecules in trans configuration around the distorted M(II) octahedral. On the other hand, the two “trans-axial” pyridine-N-oxide molecules in complexes 2 and 3 display opposite orientation (s-trans). The DFT (density functional theory) computational studies on the complexes 1–3 were consistent with the experimentally observed crystal structures. Compounds 1 and 2 display weak antiferromagnetic coupling between metal ions (J = −10.8 for 1 and −0.35 for 2).

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Section: Magnetic Datasupporting

confidence: 90%

Section: Preparation and Spectroscopy (Ir Uv/vis) Of Complexesmentioning

confidence: 77%

Section: Preparation and Spectroscopy (Ir Uv/vis) Of Complexesmentioning

confidence: 86%

“…To [10,63]. As in these structures, the adjacent pyridine rings of 1-3 also constitute extra stability through the non-covalent π-π ring-ring interactions along the chain direction.…”

Section: Discussionmentioning

confidence: 99%

Section: Crystal Structuresmentioning

confidence: 99%

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Structure, DFT Calculations, and Magnetic Characterization of Coordination Polymers of Bridged Dicyanamido-Metal(II) Complexes

et al. 2019

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Syntheses, structural characterization, and thermal behaviour of metal complexes with 3-aminopyridine as co-ligands

et al. 2020

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Six mixed metal complexes with 3-aminopyridine (3-ampy) as a co-ligand have been synthesized: catena-{[M(μ2-3-ampy)(H2O)4]SO4·H2O} (M=Ni (1) and Co (2)), [Co(3-ampy)4(NCS)2] (3), [Co(3-ampy)2(NCS)2] (4), [Co(3-ampy)4(N3)2] (5) and mer-[Co(3-ampy)3(N3)3] (6), (NCS−=isothiocyanate ion, N3− azide ion), and characterized by physio-chemical and spectroscopic methods as well as single crystal X-ray and powder diffraction. In the isostructural complexes 1 and 2 single μ2-3-ampy links the Ni(II) and Co(II) centers into polymeric chains. The mononuclear Co(II) and Co(III) pseudohalide complexes 3–6 reveal only terminal 3-ampy ligands. The 3-ampy ligands form supramolecular hydrogen bonded systems via their NH2-groups and non-covalent π-π ring-ring interactions via their pyridine moieties. Thermoanalytical properties were investigated for 1–3. Graphic abstract

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Synthesis, structure, hirshfeld surface analysis and antibacterial activities of [Cd(2-ampy)3(NCS)(μ1,5-SCN)]2 and [Cd(4-ampy)2(μ1,5-dca)2]n complexes (2-ampy = 2-aminopyridine, 4-ampy = 4-aminopyridine, NCS = thiocyanate, dca = dicyanamide)

Wijaya,

Nugraha,

Alfian

et al. 2024

Chemistry of Inorganic Materials

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Synthesis and characterization of 1D coordination polymers of metal(II)-dicyanamido complexes

Cited by 13 publications

References 88 publications

Structure, DFT Calculations, and Magnetic Characterization of Coordination Polymers of Bridged Dicyanamido-Metal(II) Complexes

Structure, DFT Calculations, and Magnetic Characterization of Coordination Polymers of Bridged Dicyanamido-Metal(II) Complexes

Syntheses, structural characterization, and thermal behaviour of metal complexes with 3-aminopyridine as co-ligands

Synthesis, structure, hirshfeld surface analysis and antibacterial activities of [Cd(2-ampy)3(NCS)(μ1,5-SCN)]2 and [Cd(4-ampy)2(μ1,5-dca)2]n complexes (2-ampy = 2-aminopyridine, 4-ampy = 4-aminopyridine, NCS = thiocyanate, dca = dicyanamide)

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