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  • 1
    Electronic Resource
    Electronic Resource
    4-t-Butylphenoxo complexes of oxovanadium(V) (1995)
    Springer
    Transition metal chemistry 20 (1995), S. 388-390 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Complexes of composition [VOCl2(OC6H4Bu-t-4)] (1) and [VOCl(OC6H4Bu-t-4)2] (2) have been synthesized by the reaction of VOCl3 with equimolar and bimolar amounts, respectively, of 4-t-BuC6H4OSiMe3 in CCl4 and characterized by physio-chemical techniques. The complexes react with α-hydroxyaldehydes and ketones such as 2-hydroxybenzaldehyde (salicylaldehyde, salH), and 2-hydroxy-2-phenylacetophenone (benzoin, benzH), 2-hydroxyacetophenone (hapH) and also with the potassium salt of p-chlorobenzohydroxamic acid (KBHACl) in 1∶1 and 1∶2 molar ratios, to yield five- and six-coordinate complexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00139137
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  • 2
    Electronic Resource
    Electronic Resource
    Addition compounds of monophenoxy-and diphenoxy-niobium(V) and tantalum(V) chlorides with some phosphoryl and amine oxide ligands (1982)
    Springer
    Transition metal chemistry 7 (1982), S. 14-16 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Compounds of composition MCl5−n(OPh)n · L (M = Nb or Ta; n = 1 or 2 and L = monodentate ligand) have been prepared by reacting phosphoryl and amine oxide ligands with phenoxy-niobium(V) and -tantalum(V) chlorides and characterized by their analytical data, molecular weights, molar conductance and i.r. spectra.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00623799
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  • 3
    Electronic Resource
    Electronic Resource
    On the nature of monochlorotitanium(IV) naphthoxide (1983)
    Springer
    Transition metal chemistry 8 (1983), S. 348-350 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Conductometric titrations of monochlorotitanium(IV) naphthoxide against pentachlorides of antimony, niobium and tantalum and aluminium chloride in nitrobenzene indicate the formation of ionic compounds [Ti(OC10H7)3][MCl6] and [Ti(OC10H7)3][AlCl4] (M = Sb, Nb or Ta). These have been isolated. Tertiary bases such as 2,2′-bipyridyl and 1,10-phenanthroline form non-ionic adducts of composition [TiCl-(OC10H7)3(Base)]. In protic acids such as HSO3F or H2S2O7 monochlorotitanium(IV) naphthoxide is solvolysed, and does not form the cation [Ti(OC10H7)3]+.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618570
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  • 4
    Electronic Resource
    Electronic Resource
    Acceptor properties of titanium(IV) phenoxides (1981)
    Springer
    Transition metal chemistry 6 (1981), S. 238-240 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Compounds of composition TiCl4−n(OPh)n · 2L (L = monodentate ligand, n = 1–4) have been prepared by the reaction of the parent titanium phenoxides (1 mol) with the ligand (2 mols) and characterized by elemental analysis, molar conductance, molecular weight and i.r. spectral studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618233
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  • 5
    Electronic Resource
    Electronic Resource
    Bis(2,4–pentanedionato)vanadium(IV) aryloxides (1998)
    Springer
    Transition metal chemistry 23 (1998), S. 557-560 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Complexes of composition [VCl(acac)2(OAr1–4)] and [V(acac)2(OAr1–4)2] (HOAr1=HOC6H4NO2–4, HOAr2= HOC6H4OMe-4, HOAr3=HOC6H4But-4 and HOAr4= HOC6H2But-2,6–Me-4; acac=2,4–pentanedionato ion) have been synthesized by the reaction of [VCl2(acac)2] with the respective phenols or their trimethylsilyl derivatives. The complexes have been characterized by physicochemical and spectroscopic techniques. They are non-electrolytes in nitrobenzene. Room temperature magnetic moments in the 1.71–1.82μB range are consistent with the VIV system. The reactions of [VCl(acac)2(OAr2)] and [VCl(acac)2(OAr3)] with chloride acceptors have been studied by conductance techniques and the formation of ionic complexes of the types [V(acac)2(OAr2,3)][MCl4] (M=Fe, Al or Sb) and [V(acac)2(OAr2,3)][MCl6] (M=P or Sb) is indicated by the conductance composition curves. Several of these complexes have been isolated and characterized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006979117187
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  • 6
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Halogensilan-Addukte, 21. Darstellung, Eigenschaften, Kristall- und Molekülstruktur von Dichloro(1,10-phenanthrolin)bis(trichlorsilyl)silicium, (SiCl3)2SiCl2 · phen (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 2241-2245 
    Details
    ISSN: 0009-2940
    Keywords: Chlorosilanes, hexacoordinated ; Silicon complexes, octahedral ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Contributions to the Chemistry of Halogenosilane Adducts, 21.  -  Preparation, Properties, Crystal and Molecular Structure of Dichloro(1,10-phenanthroline)bis(trichlorosilyl)silicon, (SiCl3)2SiCl2 · phenSi3Cl8 · phen (1) is obtained as a stable solid by the reaction of Si3Cl8 with phen. The structure of 1 in solution and its reactions correspond to that of Si3Cl8 · bipy reported earlier (1H-NMR and IR studies). Rearrangement of 1 occurs in solution to give bis(silyl)-substituted 1,2-dihydrophenanthroline. From THF/C6H6 solution crystalline Si3Cl8 · phen · C6H6 (1a) is obtained. The X-ray structure determination shows 1a to be monoclinic, space group P21/n (Z = 4). Phenanthroline is coordinated to the central silicon atom of the trisilane with its plane normal to the linear Si3 chain having two tetrahedral terminal SiCl3 groups. The coordination octahedron is regular.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901231203
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  • 7
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Halogensilan-Addukte, 20. Hexakoordinierte Verbindungen von Trichlorsilanen. - Darstellung, Kristall-und Molekülstruktur von RSiCl3·bipy (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 945-951 
    Details
    ISSN: 0009-2940
    Keywords: Chlorosilanes ; hexacoordinated/Silicon complexes ; octahedral ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Hexacoordinated Compounds of Trichlorosilanes. - Preparation, Crystal and Molecular Structure of BSiCl3·bipyThe octahedral Si complexes CHCl2SiCl3·bipy (1), CCl3SiCl3·bipy (2), and Cl3SiCCl2SiCl3·bipy (3) are obtained by the reaction of the respective trichlorosilanes and 2.2′-bipyridine (bipy). Their composition is independent of the initial ratio of the components. X-ray structure determinations show the Si atoms of all three complexes to be octahedrally coordinated with the substituted methyl groups in axial positions. The configurations represent structures of least steric hindrance assuming spheric substituents and demonstrate the usefulness of this structural model for solid compounds (in contrast possibly to dissolved compounds) even for substitutents deviating strongly from this assumption. Bond lengths and angles agree with the presence of hexacoordinated complexes. Deviations from expected values are interpreted in terms of considerable steric interactions. 3 represents a case of strongly hindered coordination requiring interesting steric adjustments.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901230502
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