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  • 1
    ISSN: 0044-2313
    Keywords: Vanadium Complexes ; syntheses ; EPR spec-tra, absorption spectra ; crystal structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Vanadium Complexes with Tridentate Diacidic Ligands. The Crystal Structures of Bis[acetylacetonato-thiobenzoylhydrazonato(2-)]vanadium(IV), Methoxo-oxo-[salicylaldehyd-thiobenzoylhydrazonato(2-)]vanadium(V), and Methoxo-oxo-[salicylaldehydbenzoylhydrazonato(2-)]methanol Vanadium(V)By template reactions of bis(acetylacetonato)oxovanadium(IV) and bis(salicylaldehydato)oxo-vanadium(IV), respectively, with benzoylhydrazine, thiobenzoylhydrazine, and 2-aminophenol the vanadium(IV) complexes V(LLL)2 of tridentate azomethine ligands LLL were synthesized. The complexes were characterized by EPR spectroscopy and by absorption spectroscopy. From the complex V(LLL)2 (1), in which LLL is acetyl-aceton-thiobenzoydrazonate(2-), the crystal structure analysis was solved. The vanadium atom in 1 is coordinated trigonal-prismatically by two N, 0 and S atoms. Furthermore, the 0x0 vanadium(V) complexes[VO(LLL)(OCH,)] (6) with LLL = salicylaldehyd-thio-benzoylhydrazonato(2-) and [VO(LLL)(OCH3)· -CH3OH] (7) with LLL = salicylaldehydbenzoylhydrazonato(2-) were identified by X-ray diffraction and by IR spectroscopy in the reaction products.Crystallographic data for 1, 6, and 7 see „Inhaltsübersicht“.
    Notes: Durch template-Reaktionen von Bis(acetylacetonato)-oxovanadium(IV) bzw. Bis(salicylaldehydato)-oxovanadium(IV) mit Benzoylhydrazin, Thiobenzoylhydrazin und 2-Aminophenol wurden die Vanadium(IV)-komplexe V(LLL)2 mit den dreizähnigen diaciden Azomethinliganden LLL synthetisiert. Die Komplexe werden durch ihre EPR-Spektren und durch die Absorptionsspektren charakterisiert; von dem Komplex V(LLL)2 (1) mit LLL = acetylaceton-thiobenzoylhydrazonato(2-) wurde eine Kristallstrukturanalyse angefertigt. Danach ist das Vanadiumatom trigonal-prismatisch von je zwei S-, O- und N-Atomen des Liganden LLL umgeben. In den Reaktionsprodukten wurden daneben röntgenstrukturanalytisch und IR-spektroskopisch die Oxovanadium(V)-komplexe [VO(LLL)(OCH3)] (6) mit LLL = salicylaldehyd-thiobenzoylhydrazonato(2-) und [VO(LLL)(OCH3)] · CH3OH (7) mit LLL = salicylaldehydbenzoylhydrazonato(2-) identifiziert.1: Raumgruppe P21/c, Z = 4, 1205 beobachtete unabhängige Reflexe, R = 4,8%. Gitterabmessungen bei 20°C: a = 923,1(2); b = 1156,2(2); c = 2341,3(5) pm; β = 101,30(3).6: Raumgruppe P21/n, Z = 4, 1872 beobachtete unabhängige Reflexe, R = 4,4%. Gitterabmessungen bei 20°C: a = 742,2(1); b = 1148,0(1); c = 1787,8(2) pm, β = 96,48(1)°. Das Vanadiumatom in 6 ist verzerrt tetragonal-pyramidal koordiniert mit dem Oxoliganden in Apical-Position.7: Raumgruppe P21/c, Z = 4, 992 beobachtete unabhängige Reflexe, R = 5,9%. Gitterabmessungen bei 20°C: a = 816,6(2); b = 1698,6(3), c = 1224,1(2) pm; β = 104,20(3)°. Das Vanadiumatom in 7 ist verzerrt oktaedrisch koordiniert mit dem O-Atom des Methanol-Moleküls in trans-Stellung zum Oxoliganden.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 955-958 
    ISSN: 0044-2313
    Keywords: Template Reactions ; Benzoylhydrazine ; Hydrazide Ligands ; Molybdenum Complexes ; Crystal Structure ; Triphenylphosphane ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Template Reactions of Bis(acetylacetonato)-dioxo-molybdenum(VI) with Benzoylhydrazine and TriphenylphosphaneBy reaction of MoO2(acac)2 with C6H5—CO—NH—NH2 in the presence of P(C6H5)3 Mo(NNCOC6H5)((CH3)2CNNCOC6H5)(P(C6H5)) was obtained besides MoO(acac-NNHCOC6H5)(NNHCOC6H5). The earlier compound was characterized by X-ray structural analysis. Crystallographic data see „Inhaltsübersicht“.
    Notes: Bei der Umsetzung von MoO2(acac)2 mit C6H5—CONH—NH2 in Gegenwart von P(C6H5)3 wurde neben MoO(acac-NNHCOC6H5)(NNHCOC6H5) als weitere Substanz Mo(NNCOC6H5)(NNHCOC6H5)((CH3)2CNNCOC6H5) · (P(C6H5)3) erhalten, welche Benzoylhydrazidoliganden in verschiedenen Bindungsformen aufweist. Die Verbindung wurde durch Röntgenkristallstrukturanalyse charakterisiert.Raumgruppe P 21/c, Z = 4, 2 632 beobachtete unabhängige Reflexe, R = 5,9%, Gitterabmessungen bei 19°C: a = 1 583,6(2) pm, b = 1 485,0(2) pm, c = 1 656,1(2) pm, β = 100,79(1)°C.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 607 (1992), S. 177-182 
    ISSN: 0044-2313
    Keywords: Tin(IV) complexes ; syntheses ; IR-UV-VIS ; Mössbauer spectra ; crystal structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tin(IV) Complexes with Tridentate Diacidic LigandsBy template reactions including bis(acetylacetonato)-dichloro-tin(IV) and O-aminophenol as well as o-aminothiophenol, benzoylhydrazine, and thiobenzoylhydrazine the tin chelates of tridentate diacidic ligands containing ligator atoms were prepared. To characterize the compound, IR, UV-VIS and Mössbauer spectroscopy were used. Crystal structure analyses demonstrate the existence of disturbed octahedral structures.Bis[acetylacetonbenzoylhydrazonato(2-)]tin(IV): space group P21/c, Z = 4, 2501 observed unique reflections, R = 0.045. Lattice dimensions at 20°C: a = 992.3, b = 2405.5, c = 1071.8pm, β = 116.94°.Bis[acetylacetonthiobenzoylhydrazonato(2-)] tin(IV): space group P21/c, Z = 4, 3603 observed unique reflections, R= 0.029. Lattice dimensions at 20°C: a = 1581.5, b = 947.8, c = 1644.9pm, β = 90.32°.
    Notes: Durch Template-Reaktionen von Bis(acetylacetonato)-dichloro-zinn(IV) mit o-Aminophenol, o-Aminothiophenol, Benzoylhydrazin und Thiobenzoylhydrazin wurden die Zinnchelate dreizähniger diacider Liganden mit- Ligatoratomen dargestellt. Die Charakterisierung der Substanzen erfolgte durch IR-, UV-VIS-und Mößbauer-Spektroskopie. Die Röntgenkristallstrukturanalysen erweisen das Vorliegen verzerrt-oktaedrischer Strukturen.Bis[acetylacetonthiobenzoylhydrazonato(2-)] zinn(IV): Raumgruppe P21/c, Z = 4, 2501 beobachtete unabhängige Reflexe, R = 4,5%. Gitterabmessungen bei 20°C: a = 992, 3; b = 2405,5; c = 1071, 8pm, β=116,94°.Bis[acetylacetonbenzoylhydrazonato(2-)] zinn(IV): Raumgruppe P21/c, Z = 4, 3603 beobachtete unabhängige Reflexe, R = 2,9%. Gitterabmessungen bei 20°C: a = 1581, 5; b = 947,8; c = 1644,9pm, β=90,32°.
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  • 4
    ISSN: 0044-2313
    Keywords: Dioxomolybdenum(VI) complexes ; crystal structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ligand Exchange Reactions of Bis(acetylacetonato)dioxo-molybdenum(VI). Crystal Structures of [Salicylaldehyde-benzoylhydrazonato(2-)]dioxo-methanol-molybdenum(VI) and [Benzoylacetone-benzoylhydrazonato(2-)]dioxo-triphenylphosphaneoxide-molybdenum(VI)The products of ligand exchange reactions between bis(acetylacetonato)dioxo-molybdenum(VI) and tridentate diacidic ligands H2L in the presence of triphenylphosphane were found by mass spectrometry to be complexes of the type MoO2L. In the case of salicylaldehyde 2-hydroxyanil MoL2 could also be identified. The compounds MoO2L were crystallized as complexes with methanol or triphenylphosphane oxide.Crystallographic data see “Inhaltsübersicht”.
    Notes: Als Reaktionsprodukte bei der Ligandenaustauschreaktion von Bis(acetylacetonato)dioxo-molybdän(VI) mit dreizähnigen diaciden Liganden H2L in Gegenwart von Triphenylphosphan wurden massenspektrometrisch Komplexe des Typs MoO2L identifiziert. Beim Salicylaldehyd-2-hydroxyanil konnte auch MoL2 nachgewiesen werden. Die Verbindungen MoO2L kristallisieren als Komplexe mit Methanol oder Triphenylphosphanoxid.[Salicylaldehyd-benzoylhydrazonato-(2-)]dioxo-methanol-molybdän(VI): Raumgruppe P1, Z = 2, 3 073 unabhängige Reflexe, R = 3,2%; Gitterabmessungen bei 19°C: a = 785,5(2) pm, b = 980,6(2) pm, c = 1 037,2(2) pm, α = 94,53(3)°, β = 107,38(3)°, γ = 90,35(3)°, [Benzoylaceton-benzoylhydrazonato(2-)]dioxo-triphenylphosphanoxid-molybdän(VI); Raumgruppe P21/n, Z = 4, 8 147 unabhängige Reflexe, R = 3,55% Gitterabmessungen bei 20°C: a = 1 091,3(2) pm, b = 1 512,8(3) pm, c = 1897,1(4) pm, β = 92,25(3)°.
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