Library

X
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
  • Inorganic Chemistry  (7)
Source
Material
Years
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Neue Synthese von Heptamethyldisilazan und N-Methyl-N-trimethylsily-trifluoracetamid (1971)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 3831-3834 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Synthesis of Heptamethyldisilazane and N-Methyl-N-(trimethylsilyl)trifluoroacetamideHeptamethyldisilazane (1) was obtained in 85 % yield by the reaction of methylamine with trimethylchlorosilane using n-pentane as solvent. The reaction of trifluoacetic anhydride with 1 gave N-Methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA) (2) in 95 % yield. 1 and 2 were investigated by mass spectrometry.
    Notes: Heptamethyldisilazan (1) wurde durch Umsetzung von Methylamin mit Trimethylchlorsilan in n-Pentan in 85proz. Ausb. erhalten. Durch Einwirkung von Trifluoracetanhydrid auf 1 entstand in 95proz. Ausb. N-Methyl-N-trimethylsilyl-trifluoracetamid (MSTFA) (2). 1 und 2 wurden massenspektrometrisch untersucht.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19711041213
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Kernspin-Kopplungskonstanten mit Platin-195 als Kriterien für die Konfigurations-Bestimmung platin-organischer Verbindungen des zweiwertigen Platins (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 1606-1619 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Spin-Spin Coupling Constants by Platinium-195 as Criteria for a Configuration Determination in Platinum Organic CompoundsThe platinum organic compounds [Pt(η4-1,5-cyclooctadiene)(XC6H4)2] and cis-[Pt(P(n-Bu)3)2-(XC6H4)2] (X = H, 4-CH3, 4-(CH3)3C, 4-(CH3)2N, 3-F, 4-F, 4-CH3O, 4-CF3; 3a - 4, cis-4a - h) as well as trans-[Pt(P(n-Bu)3)2(4-CH3OC6H4)2] (trans-4g) and trans-[Pt(P(n-Bu)3)2(4-CF3C6H4)2] (trans-4h) have been studied by 31P-, 13C-, and 1H NMR spectroscopy. The coupling constants 1J[195Pt, 31P], nJ[195Pt, 13C], nJ[195Pt, H], and 2J[31P, 13C] show a clear correlation to the ligand configuration at the dsp2-hybridized platinum and can therefore be used as basis for configuration determination.
    Notes: Die platin-organischen Verbindungen [Pt(η4-1,5-cyclooctadien)(XC6H4)2] und cis-[Pt(P(n-Bu)3)2-(XC6H4)] (X = H, 4-CH3, 4-(CH3)3C, 4-(CH3)2N, 3-F, 4-F, 4-CH3O, 4-CF3; 3a - h, cis-4a - h) sowie trans-[Pt(P(n-Bu)3)2(4-CH3OC6H4)2] (trans-4g) und trans-[Pt(P(n-Bu)3)2(4-CF3C6H4)2] (trans-4h) wurden 31P-, 13C- und 1-NMR-spektroskopisch untersucht. Die Kopplungskonstanten 1J[195Pt, 31P], nJ[195Pt, 13C], nJ[195Pt, H] und 2J[31P, 13C] zeigen eine eindeutige Abhängigkeit von der Konfiguration der Liganden am dsp2-hybridisierten Platin; sie können daher zur sicheren Konfigurations-Bestimmung verwendet werden.
    Additional Material: 8 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170429
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Synthesen und thermisches Verhalten substituierter cis-Bis(aryl)bis(triphenylphosphan)platin(II)-Verbindungen (1982)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 115 (1982), S. 1141-1153 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Syntheses and Thermal Behaviour of Substituted cis-Bis(aryl)bis(triphenylphosphane)platinum(II) CompoundsThe compounds cis-[Pt(PPh3)2(3-XC6H4)2] (X = H, CH3, OCH3, N(CH3)2) (3a-d) and cis-[Pt(PPh3)2(3-XC6H4)(3-YC6H4)] (X = H, CH3, CH3, OCH3; Y = CH3, OCH3, N(CH3)2) (5a-f) have been synthesized; they eliminate at temperatures beneath 150°C in a stereospecific reaction the biphenyl system. The differential-calorimetrically measured elimination temperatures and the constitutions of the formed substituted biphenyls are discussed with respect to the reaction path.
    Notes: Die Verbindungen cis-[Pt(PPh3)2(3-XC6H4)2] (X = H, CH3, OCH3, N(CH3)2) (3a-d) und cis-[Pt(PPh3)2(3-XC6H4)(3-YC6H4)] (X = H, CH3, OCH3; Y = CH3, OCH3, N(CH3)2) (5a-f) wurden synthetisiert; bei Temperaturen unterhalb 150°C wird aus ihnen in einer reduktiven Eliminierung stereospezifisch das Biphenyl-System gebildet. Aus den differential-kalorimetrisch gemessenen Zersetzungstemperaturen und den Konstitutionen der gebildeten substituierten Biphenyle werden Aussagen über den Reaktionsablauf abgeleitet.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19821150330
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Synthesen und spektroskopische Untersuchungen substituierter cis- und trans-Dichlorobis(triphenylphosphan)platin(II)-Verbindungen (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 2791-2802 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthese and Spectroscopic Investigations of Substituted cis- and trans-Dichlorobis-(triphenylphosphane)platinum(II) CompoundsCompounds of the type cis- and trans-dichlorobis(triphenylphosphane)platinum(II) (3) with substituents of different electronic character in the phenyl rings bonded to phosphorus have been synthesized. The coupling constants 1J[195Pt,31P] and the chloro-platinum valence vibrational frequencies are demonstrated to be criteria for unambiguous discrimination between cis- and trans-configurations at platinum; a linear correlation exists between the sum of the ρ-constants of the substituents at the triphenylphosphane and the coupling constants 1J[195Pt,31P].
    Notes: Verbindungen des Typs cis- und trans-Dichlorobis(triphenylphosphan)platin(II) (3), deren an den Phosphor gebunden Phenyl-Ringe in verschiedenen Positionen mit Substitutenten unterschiedlichen elektronischen Charakters substituiert sind, werden dargestellt. Mit den Kopplungskonstanten 1J[195Pt, 31P] und den Platin-Chlor-;Valenzschwingungsfrequenzen werden Kriterien für die sichere Unterscheidung zwischen cis- und trans-Konfiguration am Platin aufgezeigt; es besteht ein linearer Zusammenhang zwischen der Summe der Substituenten-Konstanten der in das Triphenylphosphan eingeführten Substituenten und den Kopplungskonstanten 1J[195Pt, 31P].
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170902
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Substituenten-Einfluß auf die lichtinduzierte Isomerisierung des Homofulven-Systems: Photo-Isomerisierung des Singulettangeregten 1,2,3,5-Tetramethyl-4-methylen-endo- und-exo-6-(trifluormethyl)bicyclo[3.1.0]hex-2-ens (1985)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 2681-2691 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Influence of Substituents on the Light-Induced Isomerization of the Homofulvene System: Photo-Isomerization of the Singlet Excited 1,2,3,5-Tetramethyl-4-methylene-endo- and -exo-6-(trifluoromethyl)bicyclo[3.1.0]hex-2-eneSyntheses of the diastereomeric pairs 1,2,3,5-tetramethyl-4-methylene-endo- and -exo-6-(trifluoromethyl)bicyclo[3.1.0]hex-2-ene (endo-1d and exo-1d) as well as [6-D]-endo-1d and [6-D]- exo-1d are reported. Following singlet excitation both diastereomers are isomerized to a mixture of 1,2,3,5-Tetramethyl-6-methylene-endo- and -exo-4-(trifluoromethyl)bicyclo[3.1.0]hex-2-ene (endo-7 and exo-7) as well as [4-D]-endo-7 and [4-D]-exo-7. A mechanism for this - from the singlet excited isomerization of the alkyl-substituted homofulvenes different - reaction path is suggested.
    Notes: Die Synthese der Diastereomeren-Paare 1,2,3,5-Tetramethyl-4-methylen-endo- und -exo-6(trifluormethyl)bicyclo[3.1.0]hex-2-en (endo-1d und exo-1d) bzw. [6-D]-endo-1d und [6-D]-exo-1d wird beschrieben. Die Diastereomeren werden nach Singulett-Anregung übereinstimmend zu einem Gemisch von 1,2,3,5-Tetramethyl-6-methylen-endo- und -exo-4-(trifluormethyl)bicyclo-[3.1.0]hex-2-en (endo- 7 und exo-7) bzw. [4-D]-endo-7 und [4-D]-exo-7 isomerisiert. Ein Mechanismus für diesen - vom Verhalten der alkylsubstituierten Homofulvene stark abweichenden - Reaktionsverlauf wird vorgeschlagen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19851180711
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Synthesen und thermisches Verhalten von cis-Bis(4-tert-butyl-phenyl)platin(II)- und cis-(4-tert-Butylphenyl)(phenyl)platin(II)-Verbindungen mit Substituenten unterschiedlichen Charakters in den Phenylringen (1985)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 2011-2019 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Syntheses and Properties of cis-Bis(4-tert-butylphenyl)platinum(II)- and cis-(4-tert-Butylphenyl)-(phenyl)platinum(II) Compounds with Substituents of Different Electronic Character in the Phenyl Rings15 cis-bis(4-tert-butylphenyl)platinum(II) compounds and cis-(4-tert-Butylphenyl)(phenyl)platinum(II) compounds with substituents of increasing acceptor character have been synthesized and studied with respect to their thermal behaviour.
    Notes: 15 cis-Bis(4-tert-butylphenyl)platin(II)-Verbindungen und cis-(4-tert-Butylphenyl)(phenyl)platin(II)-Verbindungen mit Substituenten ansteigenden Akzeptor-Charakters wurden synthetisiert und massenspektrometrisch im Hinblick auf ihr thermisches Verhalten studiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19851180524
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Eine Untersuchung an 6-Deuterio-endo- und-exo-6-isopropyl-1,2,3,5-tetramethyl-4-methylenbicyclo[3.1.0]hex-2-en über den Mechanismus der Singulett-angeregten Photo-Isomerisierung des Homofulven-Systems (1985)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 2671-2680 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: An Investigation of 6-Deuterio-endo-and-exo-6-isopropyl-1,2,3,5-tetramethyl-4-methylenebicyclo[3.1.0]hex-2-ene on the Mechanism of the Singlet Excited Photo-Isomerization of the Homofulvene SystemSynthese of the diastereomeric homofulvenes 6-deuterio-endo- and -exo-6-isopropyl-1,2,3,5-tetramethyl-4-methylenebicyclo[3.1.0]hex-2-ene ([6-D]-endo-1 b and [6-D]-exo-1 b) are reported. Following excitation to the S1-state both compounds isomerize to 6-deuterio-6-isopropyl-1,2,3,5-tetramethyl-5-methylene-1,3-cyclohexadiene. A mechanism for the reaction sequence is suggested.
    Notes: Die Synthesen der diastereomeren Homofulvene 6-Deuterio-endo- und -exo-6-isopropyl-1,2,3,5- tetramethyl-4-methylenbicyclo[3.1.0]hex-2-en ([6-D]-endo-1b und [6-D]-exo-1b) werden beschrieben. Beide Verbindungen isomerisieren nach Anregung in den S1-Zustand zu 6-Deuterio-6-isopropyl-1,2,3,4-tetramethyl-5-methylen-1,3-cyclohexadien ([6-D]-2b). Ein Mechanismus für den Verlauf dieser Photo-Isomerisierung wird vorgeschlagen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19851180710
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...