GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Wiley-Blackwell  (4)
  • 1975-1979  (4)
Document type
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 416 (1975), S. 97-105 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and reactivity of DichlorotrinitrosylvanadiumDichlorotrinitrosylvanadium is prepared by reaction of VCl4 with NO in CCl4 at 20°C. For [V(NO)3Cl2]n which is also formed from V(CO)6 and NOCl a structure with a trigonal pyramidal V(NO)3 group and with terminal and bridging chlorine ligands is proposed. [V(NO)3Cl2]n reacts with a range of N and O donors by substitution of two NO ligands to give mononitrosyl complexes V(NO)LnCl2; e.g. acetonitrile, o-phenanthroline, triphenylphosphine oxide afford the compounds [V(NO)L4Cl]Cl. The reaction of [V(NO)3Cl2]n with triphenylphosphine oxide and pyridine-N-oxide in CHCl3 proceeds by oxidation of vanadium and formation of the compounds VOL2Cl2 (L=OPPh3, C5H5NO).
    Notes: Dichlorotrinitrosylvanadin entsteht durch Umsetzung von VCl4mit NO in CCl4 bei 20°. Für [V(NO)3Cl2]n, das sich auch aus V(CO)6 und NOCl bildet, wird eine mehrkernige Struktur mit trigonal Pyramidaler V(NO)3-Gruppe sowie mit endständigen V-Cl-Bindungen und V-Cl-V-Brücken vorgeschlagen. [V(NO)3Cl2]n setzt sich unter milden Bedingungen mit N- und O-Basen unter Substitution von zwei NO-Liganden zu Mononitrosylkomplexen V(NO)LnCl2 um. Mit Acetonitril, o-Phenanthrolin, Triphenylphosphinoxid (in Benzol) werden die Verbindungen [V(NO)L4Cl]Cl erhalten. Triphenylphosphinoxid und Pyridin-N-oxid reagieren mit [V(NO)3Cl2]n in Chloroform unter Oxydation des Vanadins und Bildung der Oxovanadin(IV)-Komplexe VOL2Cl2 (L= OPPh3, C5H5NO).
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Carbonyl Complexes of Chromium, Molybdenum and Tungsten with 2,2′-Biimidazol and 5,5′-BitriazolThe preparation of tetracarbony1 complexes (HL—LH)M(CO)4, [(L—L)M(CO)4]2- and [(OC)4M(L—L)M″(CO)4]2- (M, M″ = Cr, Mo, W; L—L dianion of 2,2′-biimidazole, 5,5′-bitriazole) is reported, The υ (CO) bands indicate that in the binuclear complexes the two azole rings are not coplanar.
    Notes: Die Darstellung der Tetracarbonylkomplexe (HL—LH)M(CO)4, [(L—L)M(CO)4]2- und [(OC)4M(L—L)M″(CO)4]2- (M,M″ = Cr, Mo, W; L—L = Dianion von 2.2′ —Bimidazol, 5.5′-Bitriazol) wird beschrieben. Nach den υ (C0)-Banden sind die beiden Azolringe in den zweikernigen Komplexen nicht koplanar.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 428 (1977), S. 173-186 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Complexes with Anions of 1-substituted Tetrazolinones and -thiones and of 1,3-Thiazolin-2-thioneThe preparation of a series of anionic and phosphine containing complexes with the ambivalent anions of 1-R-tetrazolin-5-ones and -5-thiones, and of 1,3-thiazolin-2-thione is reported. According to the i.r. and 1H n.m.r. spectra the S-heterocycles are bonded through the exocyclic sulfur atom to the metal; in the oxotetrazolinate compounds coordination occurs via the N2 or N4 ring atoms. The copper and silver complexes [(Ph3P)MX]2 (X = anionic heterocycle) have been found to be dimeric.
    Notes: Die Darstellung einer Reihe von anionischen und phosphinhaltigen Komplexen mit den ambivalenten Anionen von 1-R-Tetrazolin-5-onen und -thionen, sowie von 1,3-Thiazolin-2-thion wird beschrieben. Nach den IR- und 1HNMR-Spektren sind die S-haltigen Heterocyclen stets über das exocyclische Schwefelatom an das Metall gebunden; in den Oxotetrazolinat-Verbindungen erfolgt die Koordination über den N2- oder N4-Ringstickstoff. Die Kupfer(I)- und Silber(I)-Komplexe [(Ph3P)MX]2 (X = anionischer Heterocyclus) erwiesen sich als dimer.
    Additional Material: 9 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: An Optically Active 1-Phosphino-2-aminopropane from Ephedrine and the Stereospecific Formation of Dicarbonylcyclopentadienyl Molybdenum Complexes with these Chelate LigandThe preparation of (1R, 2S)-1-Phenyl-1-diphenylphosphino-2-N-methylamino-propane from the naturally occuring ephedrine is reported. This ligand forms with (π-C5H5)M(CO)3Cl (M = Mo, W) stereospecifically a chiral complex which rearranges - again stereospecifically - to another diastereomer.
    Notes: Die Darstellung von (1R, 2S) -1-Phenyl-1-diphenylphosphino-2-N-methylaminopropan aus dem natürlich vorkommenden Ephedrin wird beschrieben. Dieser Ligand bildet mit (π-C5H5)M(CO)3Cl (M = Mo, W) in stereospezifische Reaktion einen am Metall asymmetrischen Komplex, der sich - ebenfalls stereospezifisch - in ein Diastereomeres umwandelt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...