Oxovanadium(IV) and -(V) Complexes with Aminoalcohol Ligands: Synthesis, Structure, Electrochemical, and Magnetic Properties

Plass, Winfried

doi:10.1002/(sici)1099-0682(199806)1998:6<799::aid-ejic799>3.0.co;2-v

Cited by 47 publications

(18 citation statements)

References 27 publications

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“…Toour surprise no crystalstructure of this complex or any related molybdenum diethanolateamine complex wasp ublished so faralthough severalcomplexes of this ligand with other transition and main group metals are structurally characterized [2][3][4][5][6][7].…”

Section: Discussionsupporting

confidence: 85%

Crystal structure of dimethylformamide-diethanolateamine-dioxo-molybdenum( VI), MoO2[O(CH2)2NH(CH2)2O][(CH3)2NCHO]

Zhang¹,

Schulzke²,

Schmidt³

et al. 2007

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of material Experimental detailsHydrogen atoms were attached atidealized positions on carbon atoms with U iso related to the U eq of the parent atoms and were refined with the riding model. H100 bound to secondary amine nitrogen N1wasfound and refined freely. DiscussionDiethanolateamine is awell-known and widelyused ligand system and its dioxomolybdenum compound hasbeen studied thoroughly [1]. Toour surprise no crystalstructure of this complex or any related molybdenum diethanolateamine complex wasp ublished so faralthough severalcomplexes of this ligand with other transition and main group metals are structurally characterized [2][3][4][5][6][7].The title complex consists of adiscretem ononuclearu nit, in which the diethanolateamine is coordinated to the molybdenum atom asatridentate ligand to form two five-memberedrings. Two oxo ligands coordinate to the metalt of orm astable cis-dioxomolybdenum(VI)core. ADMFmolecule trans to one oxo group completes the distorted octahedralcoordination sphere. Again this is in the range of analogous complexes with the MoO 2 2+ core (2.28 Å-2.50 Å) [11]. The length of the Mo-O5 bond is 2.438(2) Åwhich is rather long, implying avery weak bonding interaction between the molybdenum and the DMFmolecule. This coordination nevertheless allows to obtain astable distorted octahedralenvironment. The Mo-O(DMF)distance is longer thanMo-Odistances formed by other solvent molecules e.g. MeOH with 2.289 Å-2.385 Å [8,12] or H 2 Owith2.255 Å-2.293 Å [13]. The comparably weakb onding interaction indicates thatDMFis particularly easy to remove from the molecule. The most evident distortionsofthe structure from the idealized octahedralenvironment are defined by the N1-Mo-O1(75.81(7)°), N1-Mo-O2( 74.97(7)°) and O1-Mo-O2( 146.43(7)°) angles. With the strain of two five-memberedchelate rings, two alkoxy groups are bent towards the nitrogen atom.

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Section: Discussionsupporting

confidence: 85%

Crystal structure of dimethylformamide-diethanolateamine-dioxo-molybdenum( VI), MoO2[O(CH2)2NH(CH2)2O][(CH3)2NCHO]

Zhang¹,

Schulzke²,

Schmidt³

et al. 2007

Zeitschrift Für Kristallographie - New Crystal Structures

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“…27 The characteristic m(V@O) stretch in the oxovanadium compounds is generally observed in the range 950-995 cm À1 . 28 In the present compound it is observed at 990 cm À1 .…”

Section: Spectroscopy and Magnetismmentioning

confidence: 99%

Synthesis, structural properties and insulin-enhancing potential of bis(quercetinato)oxovanadium(IV) conjugate

Shukla

Barve

Padhyé

et al. 2004

Bioorganic & Medicinal Chemistry Letters

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“…The five-coordinate V 3 2MeOH [17] (dea ¼ diethanolamine, acac ¼ 2,4-pentanedione) and [fVO(Htea)g 2 fVO(acac)g 2 (m 2 -OMe) 2 ] . 2MeOH [17] (tea ¼ triethanolamine). The average distance of V-O(m 2 -OCH 3 ) is 1.996(7) Å , with the longest distance being 2.059(7) Å for V 2 -O 1 , which is enclosed to the V-O(m 2 -OR) distances in the complex [(VO) 2 (edtp)(m 2 -OMe) 2 ] [17] …”

Section: Synthesis and Characterization Of The Title Complexmentioning

confidence: 91%

“…The five-coordinate V 3 2MeOH [17] (dea ¼ diethanolamine, acac ¼ 2,4-pentanedione) and [fVO(Htea)g 2 fVO(acac)g 2 (m 2 -OMe) 2 ] . 2MeOH [17] (tea ¼ triethanolamine).…”

Section: Synthesis and Characterization Of The Title Complexmentioning

confidence: 97%

An Interesting Array of Cyclic Tetramer Water in the Molecular Structure of [V₆O₁₂(phen)₄(CH₃O)₄] · 4H₂O

Xing

Yuan

Zhang

et al. 2006

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-

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A hydrothermal reaction of a mixture of Eu 2 O 3 , V 2 O 5 , 4,4 0 -bpy, phen, HCl and ethylenediamine in methanol solution resulted in the unexpected complex, [V 6 O 12 (phen) 4 (CH 3 O) 4 ] . 4H 2 O, which was then characterized by single-crystal X-ray diffraction. This complex crystallizes in the triclinic system with the space group P-1 and cell parameters a 5 9.778(4) Å , b 5 11.620(5) Å , c 5 13.271(5) Å , a 5 73.433(8)8 8 8 8 8, b 5 77.068 (8)8 8 8 8 8, g 5 87.509(8)8 8 8 8 8, and Z52 with R 1 5 0.0726. Interestingly, a cyclic water tetramer is located in the packing diagrams of the title complex. The four water molecules linked by hydrogen bonds generate a two-dimensional (2D) box structure, resulting in the formation of a square-prism like water tetramer, which has not been experimentally observed and theoretically predicted so far.

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Oxovanadium(IV) and -(V) Complexes with Aminoalcohol Ligands: Synthesis, Structure, Electrochemical, and Magnetic Properties

Cited by 47 publications

References 27 publications

Crystal structure of dimethylformamide-diethanolateamine-dioxo-molybdenum( VI), MoO2[O(CH2)2NH(CH2)2O][(CH3)2NCHO]

Crystal structure of dimethylformamide-diethanolateamine-dioxo-molybdenum( VI), MoO2[O(CH2)2NH(CH2)2O][(CH3)2NCHO]

Synthesis, structural properties and insulin-enhancing potential of bis(quercetinato)oxovanadium(IV) conjugate

An Interesting Array of Cyclic Tetramer Water in the Molecular Structure of [V₆O₁₂(phen)₄(CH₃O)₄] · 4H₂O

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Oxovanadium(IV) and -(V) Complexes with Aminoalcohol Ligands: Synthesis, Structure, Electrochemical, and Magnetic Properties

Cited by 47 publications

References 27 publications

Crystal structure of dimethylformamide-diethanolateamine-dioxo-molybdenum( VI), MoO2[O(CH2)2NH(CH2)2O][(CH3)2NCHO]

Crystal structure of dimethylformamide-diethanolateamine-dioxo-molybdenum( VI), MoO2[O(CH2)2NH(CH2)2O][(CH3)2NCHO]

Synthesis, structural properties and insulin-enhancing potential of bis(quercetinato)oxovanadium(IV) conjugate

An Interesting Array of Cyclic Tetramer Water in the Molecular Structure of [V6O12(phen)4(CH3O)4] · 4H2O

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An Interesting Array of Cyclic Tetramer Water in the Molecular Structure of [V₆O₁₂(phen)₄(CH₃O)₄] · 4H₂O