En route to {Mo2O2(μ2-O)2}2+ species: Isolation and structural characterization of a novel methoxide-bridged Mo(V) complex

Modec, Barbara

doi:10.1016/j.inoche.2009.02.010

Cited by 7 publications

(2 citation statements)

References 31 publications

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“…The coordinated methoxide can in turn react with water to form an oxido ligand. A direct evidence of the latter process is the observed transformation of [Mo 2 O 3 (OMe)(OOCCH 3 )Cl 4 ] 2− , a complex with a bridging methoxide, to the {Mo 2 O 4 } 2+ -containing products [15]. The formation of {Mo 2 O 4 } 2+ species was found to be faster and more reproducible when methanol was present in the reaction mixture.…”

Section: Resultsmentioning

confidence: 99%

Syntheses and a Solid State Structure of a Dinuclear Molybdenum(V) Complex with Pyridine

Modec

Zubieta

2010

Materials

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A mononuclear complex [MoOCl4(H2O)]− readily forms a metal−metal bonded {Mo2O4}2+ core. A high content of pyridine in the reaction mixture prevents further aggregation of dinuclear cores into larger clusters and a neutral, dinuclear complex with the [Mo2O4Cl2(Py)4] composition is isolated as a product. Solid state structures of two compounds containing this complex, [Mo2O4Cl2(Py)4]·2.25Py (1) and [Mo2O4Cl2(Py)4]·1.5PyHCl (2), were investigated by X-ray crystallography.

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Section: Resultsmentioning

confidence: 99%

Syntheses and a Solid State Structure of a Dinuclear Molybdenum(V) Complex with Pyridine

Modec

Zubieta

2010

Materials

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“…Halogen atoms can also participate in the coordination of molybdenum atoms, which makes the crystal structure diversified. A series of structures were reported in which halogen atoms were coordinated with molybdenum atoms, (PyH) 2 [Mo 2 O 3 (OMe)(OOCCH 3 )Cl 4 ], 31 (PyH) 3 [Mo 2 O 4 Cl 4 (OOCCHCHCOOH)] 32 (Fig. 1d), and (PyH) 3 [Mo 2 O 4 Br 4 (OOCCHCHCOOH)]·6CH 3 CN.…”

Section: The Structural Evolution Of Molybdenum Clustersmentioning

confidence: 99%

Rational design and progress of molybdenum-oxo clusters

Wang

Zang

et al. 2023

Mater. Chem. Front.

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Pyrazine‐Assisted Dimerization of Molybdenum(V): Synthesis and Structural Characterization of Novel Dinuclear and Tetranuclear Complexes

2010

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12 pagesInternational audienceReactions of pyrazine (Pyz = C4H4N2) with [MoOCl4(H2O)]– or [MoOBr4]– afforded a series of complexes, dinuclear [(MoOX4)2(Pyz)]2– (X = Cl, Br), [{MoOCl3(Pyz)}2O]2– and tetranuclear [(Mo2O4Cl4)2(Pyz)2]4– anions, with N-donor ligands engaged either in monodentate or bidentate bridging coordination. A dinuclear [(MoOX4)2(Pyz)]2– ion, which may be viewed as a linkage of two mononuclear subunits with a bidentate pyrazine, crystallizes either as a PyH+ (pyridinium cation, C5H5NH+; compound 1), a {(C2H5)4N}+ (compound 2) or a {(C6H5)4P}+ salt (compounds 3 and 4). In (PyH)2- [{MoOCl3(Pyz)}2O] (5) with an anti-{Mo2O3}4+ core, pyrazine is bound to the metal through only one nitrogen atom. The tetranuclear [(Mo2O4Cl4)2(Pyz)2]4– ion, a linkage of two metal–metal bonded {Mo2O4}2+ cores with a pair of bidentate pyrazines, is found in two compounds, (MeNC5H5)2(PyzH2)- [(Mo2O4Cl4)2(Pyz)2] (6) [MeNC5H5 + = N-methylpyridinium cation, PyzH2 2+ = pyrazinium(2+) cation] and (PyH)4- [(Mo2O4Cl4)2(Pyz)2]·2CH3CN (7). In the presence of methanol, dinuclear {(C6H5)4P}2[(MoOBr4)2(Pyz)]·2CH3CN (4) was transformed directly into tetranuclear (PyH)4[(Mo2O4Br4)2- (Pyz)2]·2CH3CN (8). All compounds were fully characterized by X-ray crystallography and IR spectroscopy. The compounds containing the [(MoOX4)2(Pyz)]2– ions display an irreversible electrochemical reduction behaviour. Temperature- dependent magnetic measurements on {(C6H5)4P}2- [(MoOX4)2(Pyz)]·2CH3CN (X = Cl for 3, X = Br for 4) reveal a weak ferromagnetic coupling across the pyrazine bridge between a pair ofMoV S = 1/2 spins. The magnetic properties of {(C2H5)4N}2[(MoOCl4)2(Pyz)] (2), another compound with dinuclear complex anions, are dominated by antiferromagnetic intermolecular interactions

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En route to {Mo2O2(μ2-O)2}2+ species: Isolation and structural characterization of a novel methoxide-bridged Mo(V) complex

Cited by 7 publications

References 31 publications

Syntheses and a Solid State Structure of a Dinuclear Molybdenum(V) Complex with Pyridine

Syntheses and a Solid State Structure of a Dinuclear Molybdenum(V) Complex with Pyridine

Rational design and progress of molybdenum-oxo clusters

Pyrazine‐Assisted Dimerization of Molybdenum(V): Synthesis and Structural Characterization of Novel Dinuclear and Tetranuclear Complexes

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