The chemistry of cobalt acetate: The isolation and crystal structure of the symmetric trimer,hexakis(μ-acetato)-μ3-oxo-tris(pyridine)tricobalt(III) perchlorate water solvate, [Co3O(CH3CO2)6(C5H5N)3][CiO4]·H2O

Beattie, James K.; Hambley, Trevor W.; Klepetko, John A.; Masters, Anthony F.; Turner, Peter

doi:10.1016/0277-5387(95)00489-0

Cited by 35 publications

(11 citation statements)

References 18 publications

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“…It is noteworthy that the anodic dissolution of metallic chromium in a solution of trifluoroacetic acid in acetonitrile performed in this work resulted in Cr(III) trifluoroacetate complex, whereas the authors of [11] obtained under similar conditions compounds of bivalent iron and cobalt. Obviously, this can be explained by different potentials of transformations M 2+ M 3+ (E 0 being 0.771, 1.92, and -0.424 V for iron, cobalt, and chromium, respectively [13]).…”

Section: Resultsmentioning

confidence: 65%

“…The reaction was carried out under conditions described in [11], in solutions of trifluoroacetic acid in anhydrous organic solvents (acetonitrile and tetrahydrofuran). The need to use a solvent is dictated by the lacking charge carrier in concentrated solutions of trifluoroacetic acid.…”

Section: Resultsmentioning

confidence: 99%

“…The electrochemical synthesis of Cu, Fe, Co, and Ni trifluoroacetates described in [11] was performed by the anodic dissolution of the metals in solutions of trifluoroacetic acid in water and in acetonitrile (at a volume ratio 1 : 1). The process was conducted in thermostatted cell without membrane with plates of transition metals used as electrodes.…”

Section: Resultsmentioning

confidence: 99%

“…The process was conducted in thermostatted cell without membrane with plates of transition metals used as electrodes. The results of the elemental analysis [11] revealed the formation of anhydrous nonsolvated trifluoroacetates, when acetonitrile solvent was used, and the formation of crystal hydrates in the case when electrolysis was carried out in an aqueous solution of trifluoroacetic acid.…”

Section: Resultsmentioning

confidence: 99%

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Novel chromium trinuclear trifluoroacetate complexes Cr3(μ3-O)(CF3COO)6(CH3COOH)2(CF3COO) and Cr3(μ3-O)(CF3COO)6(CH3COOH)2(THF): Synthesis and crystal structure

2005

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Novel anhydrous trinuclear µ 3 -oxo complexes of Cr(III), ë r 3 (µ 3 -O)(CF 3 COO) 6 (CH 3 COOH) 2 (CF 3 COO) (I) and of Cr(III,III,II), Cr 3 (µ 3 -O)(CF 3 COO) 6 (CH 3 COOH) 2 (THF) (II) (where THF is (CH 2 ) 4 O) are synthesized by anodic dissolution of metallic chromium in solutions of trifluoroacetic acid in acetonitrile and in tetrahydrofuran and their structures are studied by X-ray diffraction analysis. Complex I forms orthorhombic crystals with space group Pna2 1 , a = 9.778 (1) Å, b = 16.042(2) Å, c = 22.851(4) Å, Z = 4, R 1 = 0.0332; complex II crystallizes in monoclinic system: space group P2 1 /c, a = 9.866(1) Å, b = 17.895(2) Å, c = 21.167(4) Å, β = 100.75(2)°, Z = 4, R = 0.0422. The average Cr-(µ 3 -O) distances in compounds I and II are almost equal (1.943(3) and 1.927(3) Å). An average length of the Cr-O bond in octahedral surrounding of metal atoms is different in complexes I and II (1.985(4) and 2.003(3) Å, respectively), which is specified by different oxidation states of the metal atom. The Cr···Cr distances lie in an interval of 3.366(1)-3.337(1) Å.

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Section: Resultsmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Novel chromium trinuclear trifluoroacetate complexes Cr3(μ3-O)(CF3COO)6(CH3COOH)2(CF3COO) and Cr3(μ3-O)(CF3COO)6(CH3COOH)2(THF): Synthesis and crystal structure

2005

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“…For oxido-centered triangular Co complexes, see: Aromì et al (2003); Fursova et al (2007). For related structures, see: Beattie et al (1996).…”

Section: Related Literaturementioning

confidence: 99%

μ₃-Oxido-hexa-μ₂-pivalato-tris[(methanol-κO)cobalt(III)] chloride

2009

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The crystal structure of the title compound, [Co3(C5H9O2)6O(CH4O)3]Cl, consists of trinuclear CoIII complex cations and chloride anions. The CoIII cation has site symmetry m, and is coordinated by four oxygen atoms from four bridging pivalate groups, one central O anion and a methanol oxygen atom, forming a distorted octahedral geometry. The coordinated methanol molecule is located on a crystallographic special position, the C and O atoms being located on the mirror plane. The central O anion lies in the crystallographic position, and acts as a μ 3-O bridge, linking three equivalent CoIII cations and generating the oxo-centered trinuclear CoIII complex. The chloride anion, which acts as the counter-ion, is located on crystallographic position. O—H⋯Cl hydrogen bonding between the Cl anion and hydroxyl group of the coordinated methanol molecule links the molecules into a supramolecular network.

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Cobalt: Inorganic & Coordination ChemistryBased in part on the article Cobalt: Inorganic & Coordination Chemistry by David A. Buckingham which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

Blackman

2005

Encyclopedia of Inorganic Chemistry

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This article provides a summary of the important and interesting aspects of the inorganic and coordination chemistry of cobalt. A brief history of the element, detailing its discovery and historical uses, is given, and some general information concerning the properties of elemental cobalt is detailed. The general chemistry of cobalt is then outlined, including an overview of the common oxidation states found in inorganic compounds and complexes, a discussion of the stereochemistry, spectra and magnetism of cobalt complexes, and an outline of some analytical methods used for cobalt. The inorganic chemistry of simple cobalt salts is then described, and the coordination chemistry of cobalt, which constitutes the majority of the article, is then outlined in some detail. Coordination complexes of cobalt are detailed according to the oxidation state of the metal ion, with complexes ranging from Co(−I) to Co(V) discussed. Brief descriptions of the chemistry of each oxidation state are given, and specific examples are then outlined according to the nature of the ligand donor atom(s), with extensive references to both the primary literature and to review articles given. Thus, Co(I), Co(0), and Co(−I) complexes containing aliphatic, aromatic, and macrocyclic amine ligands, as well as Schiff‐base, porphyrin, and P‐donor ligands are discussed, while Co(II) complexes of carboxylate, heterocyclic, and oxygen‐derived ligands are summarized. Co(III) ammine and amine complexes are described in detail, while Co(III) complexes containing O‐donor ligands are also discussed. The few known Co(IV) and Co(V) complexes are outlined.

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The chemistry of cobalt acetate: The isolation and crystal structure of the symmetric trimer,hexakis(μ-acetato)-μ3-oxo-tris(pyridine)tricobalt(III) perchlorate water solvate, [Co3O(CH3CO2)6(C5H5N)3][CiO4]·H2O

Cited by 35 publications

References 18 publications

Novel chromium trinuclear trifluoroacetate complexes Cr3(μ3-O)(CF3COO)6(CH3COOH)2(CF3COO) and Cr3(μ3-O)(CF3COO)6(CH3COOH)2(THF): Synthesis and crystal structure

Novel chromium trinuclear trifluoroacetate complexes Cr3(μ3-O)(CF3COO)6(CH3COOH)2(CF3COO) and Cr3(μ3-O)(CF3COO)6(CH3COOH)2(THF): Synthesis and crystal structure

μ₃-Oxido-hexa-μ₂-pivalato-tris[(methanol-κO)cobalt(III)] chloride

Cobalt: Inorganic & Coordination ChemistryBased in part on the article Cobalt: Inorganic & Coordination Chemistry by David A. Buckingham which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

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The chemistry of cobalt acetate: The isolation and crystal structure of the symmetric trimer,hexakis(μ-acetato)-μ3-oxo-tris(pyridine)tricobalt(III) perchlorate water solvate, [Co3O(CH3CO2)6(C5H5N)3][CiO4]·H2O

Cited by 35 publications

References 18 publications

Novel chromium trinuclear trifluoroacetate complexes Cr3(μ3-O)(CF3COO)6(CH3COOH)2(CF3COO) and Cr3(μ3-O)(CF3COO)6(CH3COOH)2(THF): Synthesis and crystal structure

Novel chromium trinuclear trifluoroacetate complexes Cr3(μ3-O)(CF3COO)6(CH3COOH)2(CF3COO) and Cr3(μ3-O)(CF3COO)6(CH3COOH)2(THF): Synthesis and crystal structure

μ3-Oxido-hexa-μ2-pivalato-tris[(methanol-κO)cobalt(III)] chloride

Cobalt: Inorganic & Coordination ChemistryBased in part on the article Cobalt: Inorganic & Coordination Chemistry by David A. Buckingham which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

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μ₃-Oxido-hexa-μ₂-pivalato-tris[(methanol-κO)cobalt(III)] chloride