Structural, Magnetic, and Electrochemical Characterization of Iron(III) and Cobalt Complexes with Penta‐N<sub>3</sub>O<sub>2</sub>‐dentate Ligands

Natke, Dominik; Preiss, A.; Klimke, Stephen; Shiga, Tohru; Boča, Roman; Ohba, Masaaki; Oshio, Hiroki; Renz, Franz

doi:10.1002/ejic.202100081

Cited by 3 publications

(1 citation statement)

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“…In the last decades, metal complexes have attracted increasing attention due to the potential applications such as catalysis, [1][2][3] luminescence, 4-8 magnetic material, [9][10][11][12][13] and biological activities 14,15 etc. In particularly, the anticancer activity of the metal complexes has received more attention since cisplatin was successfully used to treat various cancers.…”

Section: Introductionmentioning

confidence: 99%

A novel tetranuclear Cu(ii) complex for DNA-binding and in vitro anticancer activity

Cao,

Wang,

et al. 2023

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

A novel tetranuclear Cu(ii) complex for DNA-binding and in vitro anticancer activity

Cao,

Wang,

et al. 2023

RSC Adv.

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Syntheses and Structures of [Fe(TPA)X2](ClO4) and [{Fe(TPA)Y}2O](ClO4)2 Where TPA = Tris-(2-pyridylmethyl)amine, X = N3, or Br, and Y = N3, Br, NCO, or NCS

et al. 2022

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Abstract[Fe(TPA)(N3)2](ClO4) and [Fe(TPA)Br2](ClO4), where TPA is tris-(2-pyridylmethyl)amine, crystallize in the monoclinic space group P21/c with a = 8.7029(5) Å, b = 19.168(1) Å, c = 13.5728(7) Å, β = 101.472(3)°, and a = 8.944(3) Å, b = 16.578(6) Å, c = 15.108(6) Å, β = 103.18(2)°, respectively. The structures were determined at 150 K from 3397 reflections (1426 observed) with R = 0.063 (Rw = 0.097), and at 115 K from 5617 reflections (2261 observed) with R = 0.057 (Rw = 0.065), respectively. In both cases, the iron is pseudo-octahedral with the two halide/pseudohalide ions cis. The Fe–X bond trans to the tertiary amine is shorter. The structures of [{Fe(TPA)X}2O](ClO4)2 where X = N3, Br, NCO, and two polymorphic forms of NCS, are also reported. The azide derivative [CH3CN solvate, monoclinic P21/n, a = 11.8038(11) Å, b = 22.547(2) Å, c = 17.344(2) Å, β = 106.972(4)°, determined at 100 K from 8972 reflections (4404 observed) with R = 0.087 (Rw = 0.145)] has two distinct Fe environments—the tertiary amine is cis to the oxido bridge at one site and is trans to the oxido bridge at the other site; the trans Fe–N3° distance is longer. Both the Br and NCO derivatives are monoclinic, C2/c [with a = 16.1480(17), b = 17.2036(13), c = 16.8521(12), β = 111.204(10), data collected at 293 K, 3753 reflections (2404 observed), R = 0.069 (Rw = 0.151), and a = 15.7470(9), b = 18.2270(11), c = 16.8950(8), β = 110.666(3), data collected at 90 K, 5392 reflections (3028 observed), R = 0.064 (Rw = 0.091), respectively]. Both polymorphs of the NCS derivative are monoclinic—one is P21/c and the other P21/n [a = 11.075(2), b = 15.436(2), c = 12.351(2), β = 95.528(7), data collected at 90 K, 5378 reflections (4345 observed), R = 0.068 (Rw = 0.198), and a = 12.396(2), b = 15.428(3), c = 44.505(8), β = 95.211(7), data collected at 110 K, 16,527 reflections (6540 observed), R = 0.069 (Rw = 0.105), respectively]. For the Br, NCO and NCS dimers, each iron of the [{Fe(TPA)X}2O]2+ unit is pseudo-octahedral with the halide/pseudohalide and oxide ions cis. The oxide bridge is linear, and the two halides/pseudohalides are anti. The ranking of trans influence of the ligands is O2− ≫ Br− > Cl− > N3− > NCO− ≥ NCS− > pyridyl > tertiary amine and the ranking of cis influence of the ligands is O2− ≫ N3− > NCO− > Cl− ≥ Br− > NCS−. Graphical Abstract The X-ray structures of two monomeric [Fe(TPA)(X)2](ClO4), where TPA is tris-(2-pyridylmethyl)amine and X = N3, and Br, and four dimeric [{Fe(TPA)Y}2O](ClO4)2, where Y =N3, Br, NCO, and NCS are presented and discussed.

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Crystal structure of [2,2′-{azanediyl)bis[(propane-3,1-diyl)(azanylylidene)methylylidene]} bis(3,5-dichlorophenolato)-κ²O,O′]-isothiocyanato-κN-iron(III), C₂₁H₁₉Cl₄FeN₄O₂S

Duan

Tian

et al. 2021

Zeitschrift Für Kristallographie - New Crystal Structures

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Structural, Magnetic, and Electrochemical Characterization of Iron(III) and Cobalt Complexes with Penta‐N₃O₂‐dentate Ligands

Cited by 3 publications

References 70 publications

A novel tetranuclear Cu(ii) complex for DNA-binding and in vitro anticancer activity

A novel tetranuclear Cu(ii) complex for DNA-binding and in vitro anticancer activity

Syntheses and Structures of [Fe(TPA)X2](ClO4) and [{Fe(TPA)Y}2O](ClO4)2 Where TPA = Tris-(2-pyridylmethyl)amine, X = N3, or Br, and Y = N3, Br, NCO, or NCS

Crystal structure of [2,2′-{azanediyl)bis[(propane-3,1-diyl)(azanylylidene)methylylidene]} bis(3,5-dichlorophenolato)-κ²O,O′]-isothiocyanato-κN-iron(III), C₂₁H₁₉Cl₄FeN₄O₂S

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Structural, Magnetic, and Electrochemical Characterization of Iron(III) and Cobalt Complexes with Penta‐N3O2‐dentate Ligands

Cited by 3 publications

References 70 publications

A novel tetranuclear Cu(ii) complex for DNA-binding and in vitro anticancer activity

A novel tetranuclear Cu(ii) complex for DNA-binding and in vitro anticancer activity

Syntheses and Structures of [Fe(TPA)X2](ClO4) and [{Fe(TPA)Y}2O](ClO4)2 Where TPA = Tris-(2-pyridylmethyl)amine, X = N3, or Br, and Y = N3, Br, NCO, or NCS

Crystal structure of [2,2′-{azanediyl)bis[(propane-3,1-diyl)(azanylylidene)methylylidene]} bis(3,5-dichlorophenolato)-κ2O,O′]-isothiocyanato-κN-iron(III), C21H19Cl4FeN4O2S

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Structural, Magnetic, and Electrochemical Characterization of Iron(III) and Cobalt Complexes with Penta‐N₃O₂‐dentate Ligands

Crystal structure of [2,2′-{azanediyl)bis[(propane-3,1-diyl)(azanylylidene)methylylidene]} bis(3,5-dichlorophenolato)-κ²O,O′]-isothiocyanato-κN-iron(III), C₂₁H₁₉Cl₄FeN₄O₂S