Synthesis, Characterization and Crystal Structure of Novel Mixed Bridged Trinuclear Oxo‐Centered Iron(III), Chromium(III) Complexes Containing Terminal Unsaturated Carboxylato and Acrylic Acid Dimer Anion Ligands

Yazdanbakhsh, Maria; Alizadeh, Mohammad; Khorramdel, H. Zare; Frank, Walter

doi:10.1002/zaac.200700090

Cited by 20 publications

(6 citation statements)

References 12 publications

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“…We suggest that the l 3 -oxygen atom comes from atmospheric molecular oxygen, which is in agreement with results found by Zacchini and co-workers for the compound 6 (DMF)(THF) 2 [37]. In contrast to the literature reports the iron(III) or iron(II) starting species was a low valence iron species (Fe I Fe I or all-Fe 0 ) [38,39].…”

Section: Bond Lengths (Pm)supporting

confidence: 92%

Investigation of amino acid containing [FeFe] hydrogenase models concerning pendant base effects

Apfel

Kowol

Halpin

et al. 2009

Journal of Inorganic Biochemistry

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Section: Bond Lengths (Pm)supporting

confidence: 92%

Investigation of amino acid containing [FeFe] hydrogenase models concerning pendant base effects

Apfel

Kowol

Halpin

et al. 2009

Journal of Inorganic Biochemistry

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“…The observed vibrational frequencies, ν asym (COO) and ν sym (COO), for the carboxylate ligand support the presence of bridging coordinated carboxylates in all the complexes. 15 The presence of ionic nitrate in this complex follows from the IR spectrum through the appearance of a relatively weak band at 1380 cm -1 . 14 For a new series of trinuclear mixed-metal complexes, Cannon et al 2 assigned the IR spectra and identified the vibrational modes of the central M 3 O core.…”

Section: Ir Spectroscopymentioning

confidence: 94%

Preparation and characterization of novel oxo-centered basic p-chlorobenzoic bridging trinuclear complexes

Khosravi¹,

Yazdanbakhsh²

2010

JSCS

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Three new oxo-centered trinuclear complexes, one of them a mixed--valence complex [Mn 3 O(C 7 H 4 O 2 Cl) 6 (Py) 3 ]Py (1) and the others, mixed-metal complexes of [Fe 2 MnO(C 7 H 4 O 2 Cl) 6 (Py) 3 ]NO 3 (2) and [Fe 2 CoO(C 7 H 4 O 2 Cl) 6 (Py) 3 ] (3) were synthesized by the direct reaction between metal nitrates and p-chlorobenzoic acid. These complexes were characterized by elemental analyses (CHN), atomic absorption spectroscopy and spectral (IR, electronic) studies. These are new type of oxo-bridged mixed-metal complexes in which the carboxylate ligand is p-chlorobenzoic acid. The UV spectra of the complexes exhibited a strong band in the region 42,500 cm -1 which is related to the (π → → π*) transitions of the pyridine ligand. The IR spectra of these compounds showed two strong stretching vibrations bands, indicating a bridging coordination mode of the carboxylic group of the ligand in the complexes.

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“…In previous studies, we reported fabrication of some trinuclear oxo-centered complexes with saturated and unsaturated carboxylate ligands [10][11][12][13][14]. In this paper, the syntheses and characterization of mixed-valence and mixed-metal clusters are reported.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and crystallographic characterization of new heterotrinuclear oxo-centered complex

Eftekhar¹,

Tavakkoli²,

Khosravi³

et al. 2018

Bull. Chem. Soc. Eth.

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New oxo-centered trinuclear mixed-metal complex, of [Fe2ZnO(CHCl2CO2)6(CHCl2CO2)3].NO3 was synthesized by the direct reaction between metal nitrates and dichloroacetic acid. These compounds have a typical μ3-oxo trinuclear structure: (a) three metal atoms are situated in the apexes of the equilateral triangle; (b) μ3-oxygen atom and six dichloroacetate ligands fulfil the bridge functions and (c) the monodentate CHCl2CO2 ligands complete the octahedral geometry of the metal ions. This complex were characterized by elemental analyses (CHN), atomic absorption spectroscopy and spectral (IR, electronic) studies. This is new types of oxobridged mixed-metal complex in which the carboxylate ligand is dichloroacetic acid. The UV spectra of the complex exhibited strong bands in the region 213 and 257 nm which are related to the (π → π *) and (n → π *) transitions of the CHCl2CO2 ligands, respectively. The IR spectra of this compound showed two strong stretching vibrations bands, indicating a bridging coordination mode of the carboxylic group by presence of νasym (M2M'O) vibrations of the ligand in the infrared spectra.

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Synthesis, Characterization and Crystal Structure of Novel Mixed Bridged Trinuclear Oxo‐Centered Iron(III), Chromium(III) Complexes Containing Terminal Unsaturated Carboxylato and Acrylic Acid Dimer Anion Ligands

Abstract: Three new oxo-centered trinuclear mixed-bridged carboxylate complexes with terminal unsaturated ligands (

Cited by 20 publications

References 12 publications

Investigation of amino acid containing [FeFe] hydrogenase models concerning pendant base effects

Investigation of amino acid containing [FeFe] hydrogenase models concerning pendant base effects

Preparation and characterization of novel oxo-centered basic p-chlorobenzoic bridging trinuclear complexes

Synthesis and crystallographic characterization of new heterotrinuclear oxo-centered complex

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