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  • 1965-1969  (6)
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  • 1
    Electronic Resource
    Electronic Resource
    Untersuchungen von Relaxationserscheinungen an Quecksilberatomen im metastabilen 63 P 2-Zustand mit einem Impulsverfahren (1968)
    Springer
    The European physical journal 212 (1968), S. 32-47 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The decay of rf signalsδm=±1 between the Zeeman sublevels of mercury atoms in the metastable 63 P 2 state was investigated by means of a sampling method. The density matrix of the state was expanded in terms of irreducible tensor operators. By solving the appropriate differential equations, we were able to show that the time constant of the decay obtained from the measurements is the relaxation time for the longitudinal component of the mean electric quadrupole moment (alignment) of the metastable atoms. The linewidths of the rf resonances reflect the relaxation rates of the transverse components however. From the decay time, the cross sectionσ 0=(1,80±0,11) · 10−14 cm2 for depolarizing collisions between metastable mercury atoms (even isotopes) and ground state atoms was derived. A comparison ofσ 0 with the value which was previously determined from the linewidths of rf resonances, indicates that the relaxation process in a weak magnetic field is essentially isotropic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01379895
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Die Hyperfeinstruktur des angeregten 32P3/2-Zustandes von Natrium (1966)
    Springer
    The European physical journal 194 (1966), S. 270-279 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hyperfine structure of the 32P3/2-state in the Na(I)-spektrum was investigated by optical double resonance. Three zero fieldrf-transitions (ΔF=±1, ΔmF=0) were detected and thus the unambiguous interpretation of therf-spectrum was made possible. From an analysis of therf-spectrum one obtains the magnetic hyperfine structure splitting constant a=(18.5 −0.2 +0.6 ) Mc/sec the electric quadrupole interaction constantb=(3.2±0.5) Mc/sec which yields an electric quadrupole moment Q(Na23)=(0.138±0.025)·1024cm2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01571251
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesen in der Isochinolinreihe: Zur Ätherspaltung 6,7,8-trimethoxy-substituierter Isochinolinverbindungen mit wässeriger Salzsäure (1965)
    Springer
    Monatshefte für Chemie 96 (1965), S. 25-36 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Treatment of the 6,7,8-trimethoxy-substituted 1,2,3,4-tetrahydroisoquinoline I with 20% aqueous HCl yields predominantly the corresponding 6,7,8-trihydroxy derivative II. The analogously substituted 3,4-dihydroisoquinoline IV and isoquinoline XXI are converted into their 6,8-dimethoxy-7-hydroxy derivatives V and XXII under these conditions. The constitution of these phenols was established by synthesis and degradation.
    Notes: Zusammenfassung Die Behandlung des 6,7,8-trimethoxy-substituierten 1,2,3,4-Tetrahydroisochinolins (I) mit 20proz. wäßr. HCl ergibt zur Hauptsache das entsprechende 6,7,8-Trihydroxyderivat II. Die Behandlung des analog substituierten 3,4-Dihydroisochinolins IV und Isochinolins XXI führt hauptsächlich zu den 6,8-dimethoxy-7-hydroxy-substituierten Isochinolinverbindungen V und XXII, unter selektiver Spaltung der in 7-Stellung befindlichen Methoxyl-gruppe. Die Konstitution von V und XXII konnte durch Synthese und Abbau bewiesen werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00912290
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  • 4
    Electronic Resource
    Electronic Resource
    Die Hyperfeinstruktur des 6s 6p 3 P 1-Zustandes von171Yb und173Yb (1969)
    Springer
    The European physical journal 221 (1969), S. 245-256 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hyperfine structure of the 6s 6p 3 P 1 state of171Yb and173Yb has been investigated by the level crossing technique and by optical double resonance. The following results for the magnetic hfs splitting constantA and for the electric quadrupole interaction constantB have been obtained:A(171Yb)=3959.1(14)Mc/sec;A(173Yb)=−1094.7(6) Mc/sec;B(173Yb)=−826.9(9) Mc/sec. The hyperfine structure anomaly of the isotopes171Yb and173Yb was determined to beΔ=−0.36(3)%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01392176
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  • 5
    Electronic Resource
    Electronic Resource
    On some electrochemical aspects of actomyosin formation (1966)
    New York : Wiley-Blackwell
    Biopolymers 4 (1966), S. 1046-1050 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1966.360040910
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  • 6
    Electronic Resource
    Electronic Resource
    Influence of counterions radius on the polymerization of actin (1967)
    New York : Wiley-Blackwell
    Biopolymers 5 (1967), S. 483-489 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The G-F transformation of actin was studied in terms of an interaction between different counterions and actin. macroion by means of electrometric measurements. Due to the polyelectrolyte-structure of the actin molecule, the electrostatic interactions must play a predominant role. In this sense the influence of the counterion radius has been investigated.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1967.360050603
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    Paper (German National Licenses)
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