Thiocyanato-metal(II) and azido-cobalt(III) complexes with hydroxymethylpyridines

Mautner, Franz-Andreas; Traber, Magdalena; Jantscher, Patricia V.; Fischer, Roland; Reichmann, Klaus; Vicente, Ramón; Arafat, Noor; Massoud, Salah S.

doi:10.1016/j.poly.2019.01.030

Cited by 8 publications

(4 citation statements)

References 60 publications

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“…In addition, CPs containing paramagnetic metal ions can serve as molecule-based magnets [37][38][39][40]. The bridged pseudohalide complexes have the capability to transmit the magnetic interaction between the paramagnetic metal centers across the bridged pseudohalides [1][2][3][4][5][6][7][8][10][11][12][13][14][18][19][20][21][22][23][24].…”

Section: Small Pseudohalide Ions Such As Nmentioning

confidence: 99%

“…With pyridine-N-oxide compounds, only two bonding modes (mono-dentate and bridging µ-O,O-NPR) [7,8,10,[54][55][56][57][58][59] were found (Scheme 2). In the present study, the preparation and structural characterization of the 1D chain coordination polymers of 4-methoxypyridine-N-oxide (4-MOP-NO) with dicyanamide, catena- (2), Cd (3)) and the monomeric [Cu(dca) 2 (4-MOP-NO) 2 ] (4), are reported. Furthermore, compounds 1 and 2 were magnetically characterized and the results are compared to those derived from dicynamido-metal(II) compounds containing pyridyls.…”

Section: Small Pseudohalide Ions Such As Nmentioning

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: Small Pseudohalide Ions Such As Nmentioning

confidence: 99%

Section: Small Pseudohalide Ions Such As Nmentioning

confidence: 99%

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

et al. 2019

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“…There is a problem in numbering which was solved.Coordination compounds based on thiocyanate anions have attracted much interest in recent years, which can partly be traced back due to their versatile coordination behaviour leading to structures of different dimensionality. [1][2][3][4][5][6][7][8][9][10][11][12][13] In most compounds the anionic ligands are only terminal N-bonded to the metal cations, whereas the synthesis of compounds with bridging thiocyanate ligands is sometimes more complicated if less chalcophilic paramagnetic 3d metal cations are used. This is a pity, because this ligand is able to mediate reasonable magnetic exchange leading to compounds that can show different magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

“…Coordination compounds based on thiocyanate anions have attracted much interest in recent years, which can partly be traced back due to their versatile coordination behaviour leading to structures of different dimensionality [1–13] . In most compounds the anionic ligands are only terminal N‐bonded to the metal cations, whereas the synthesis of compounds with bridging thiocyanate ligands is sometimes more complicated if less chalcophilic paramagnetic 3d metal cations are used.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structures and Properties of Polymorphic and Isomeric Nickel(II)thiocyanate Coordination Compounds with 3‐Bromopyridine as Coligand

Näther

Krebs

Ceglarska

2021

Zeitschrift anorg allge chemie

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Reaction of different molar ratios of Ni(NCS)2 and 3‐bromopyridine in water, methanol or acetonitrile leads to the formation of two polymorphs of composition Ni(NCS)2(3‐bromopyridine)4 (1‐I and 1‐II), as well as Ni(NCS)2(3‐bromopyridine)2(H2O)2 (2), Ni(NCS)2(3‐Bromopyridine)2(CH3OH)2 (3), Ni(NCS)2(3‐bromopyridine)2 ⋅ CH3CN (4) and Ni(NCS)2(3‐bromopyridine)2 (5). Compounds 1‐I, 1‐II, 2 and 3 consist of discrete octahedral complexes with terminal N‐bonded anionic ligands. In compound 4 the Ni cations are cis‐cis‐trans coordinated and linked into corrugated chains by pairs of μ‐1,3‐bridging thiocyanate anions. Solvent mediated conversion experiments prove that form 1‐I represents the thermodynamically stable polymorph at room temperature. TG‐DTA measurements reveal that upon heating compounds 1‐I, 1‐II, 2 and 3 lose their coligands stepwise and transform into the new crystalline phase 5 that can also be obtained from solution if the reaction is performed in n‐butanol. If the acetonitrile solvate molecules are removed from compound 4, it also transforms into 5. DC magnetic measurements for compound 4 show a maximum, which is indicative for antiferromagnetic ordering, whereas for compound 5 no magnetic ordering is observed. For both compounds, the ferromagnetic exchange constants were determined.

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One dimensional carboxylatocopper(II) coordination polymers with 4-pyridylmethanol

Puchoňová

Maroszová

Vasková

et al. 2020

Inorganica Chimica Acta

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Thiocyanato-metal(II) and azido-cobalt(III) complexes with hydroxymethylpyridines

Cited by 8 publications

References 60 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

Synthesis, Crystal Structures and Properties of Polymorphic and Isomeric Nickel(II)thiocyanate Coordination Compounds with 3‐Bromopyridine as Coligand

One dimensional carboxylatocopper(II) coordination polymers with 4-pyridylmethanol

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