ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
  • 3-(S)-(1-phenylethyl)-2-thioxo-2,3-dihydro-1,3-thiazol-4(5H)-ones  (1)
  • Inorganic Chemistry  (1)
  • chromatographic diastereomer separation  (1)
  • distribution limit  (1)
  • 1995-1999  (2)
  • 1965-1969  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Sensitivity to stress in the bivalve Macoma balthica from the most northern (Arctic) to the most southern (French) populations: low sensitivity in Arctic populations because of genetic adaptations? (1997)
    Springer
    Hydrobiologia 355 (1997), S. 127-138 
    Details
    ISSN: 1573-5117
    Keywords: Arctic ; adaptation ; copper ; distribution limit ; genetics ; geographic cline ; Macoma balthica ; stress sensitivity ; survival in air
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The stress sensitivity, determined in copper exposureexperiments and in survival in air tests, and thegenetic structure, measured by means of isoenzymeelectrophoresis, were assessed in populations of theBaltic clam Macoma balthica (L.) from itssouthern to its northern distribution limit, in orderto test the hypotheses that near the distributionlimit the clams would be more stress sensitive andwould have a lower genetic variability. Thepopulations in west and north Europe show a stronggenetic resemblance. The populations in the sub-ArcticWhite Sea are genetically slightly different, and showa low stress sensitivity. The populations in theArctic Pechora Sea are genetically very distant fromthe other populations, and show the lowest stresssensitivity. Near the southern distribution limit, inagreement with the hypotheses, genetic variability islow and stress sensitivity high. On the other hand, incontrast to expectation, near the northerndistribution limit, in the populations of the PechoraSea, the genetic variability was higher, thus notreduced, and the stress sensitivity was low comparedto all other populations. Yet, it remains a questionif such is due to gradual physiologicalacclimatization (and ongoing differential selection)or to genetic adaptation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003009524563
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Diastereomers of 3-(S)-(1-phenylethyl)-5-methyl- and -5-phenylrhodanine: Crystal structures, conformations, and circular dichroism spectra (1997)
    New York, NY [u.a.] : Wiley-Blackwell
    Chirality 9 (1997), S. 568-577 
    Details
    ISSN: 0899-0042
    Keywords: 3-(S)-(1-phenylethyl)-2-thioxo-2,3-dihydro-1,3-thiazol-4(5H)-ones ; 3-(S)-(1-phenylethyl)-rhodanines ; CD spectra ; empirical force field calculations ; theoretical calculation of CD spectra ; chromatographic diastereomer separation ; triacetylcellulose ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 3-(S)-(1-phenylethyl)-5-methyl- and 5-phenyl-rhodanine have been studied by single crystal X-ray crystallography. The crystals of the 5-methyl compound were shown to contain equal amounts of the 5-(R) and 5-(S) diastereomers, while the crystals of the 5-phenyl compound only contain the 5-(S) diastereomer. The UV and CD spectra of the 5-H2 compound have been analyzed on the basis of CNDO/S calculations, and the CD spectrum has been reproduced by semiempirical calculations.The 5-methyl diastereomers can be partly separated by chromatography on triacetylcellulose, and the CD spectra of the individual forms can be evaluated. The 5-phenyl compound undergoes rapid epimerization in solution, and also for this compound the CD spectra of both forms can be evaluated. The contribution of the 5-substituent follows Ripperger's sector rule for dithiocarbamates. Chirality 9:568-577, 1997. © 1997 Wiley-Liss, Inc.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
  • 3
    Electronic Resource
    Electronic Resource
    Darstellung, Eigenschaften und das Schwingungsspektrum von Äthylaluminiumchloridazid (1969)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 368 (1969), S. 44-52 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The reaction of diethylaluminiumchloride with chlorine azide at 25-30 °C leads to the trimeric ethylaluminiumchloridazide [C2H5AlClN3]3. This compound is an oily, colourless, and very hygroscopic liquid which can be distilled in vacuo, but slowly decomposes by formation of ethylaluminiumdichloride and ethylaluminiumdiazide. The vibrational spectrum (IR und RAMAN) indicates a structure consisting of a six-membered Al—N-ring (symmetry C3v).
    Notes: Bei der Reaktion von Diäthylaluminiumchlorid mit Chlorazid bei 25-30 °C entsteht trimeres Äthylaluminiumchloridazid, [C2H5AlClN3]3. Die Verbindung stellt eine ölige, farblose, sehr hygroskopische und im Vakuum destillierbare Flüssigkeit dar, die sich langsam unter Bildung von Äthylaluminiumdichlorid und Äthylaluminiumdiazid zersetzt. Nach dem Schwingungsspektrum (IR und RAMAN) liegt ein über die α-N-Atome der Azidogruppen verknüpfter Al—N-Sechsring vor (Symmetrie C3v).
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19693680108
    Location Call Number Expected 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...