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  • 1970-1974  (12)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 2 (1973), S. A160 
    ISSN: 1432-0630
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 233 (1970), S. 458-470 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract TheΒ-γ circular polarization asymmetry for three nuclides has been measured using a special polarimeter developed at Karlsruhe. The results of the measurements are Nuclid A Transition Fe59 −0158±0.007 β0.47−γ1.10 MeV Sb124 +0.278±0.013 β0.62−γ1.69 MeV Ru102 −0.107±0.011 β0.22−γ0.50 MeV From the measured values of Fe59 and Sb124 the Fermi- and effective Coulomb matrix elements are calculated. From the asymmetry coefficient of Ru103, and internal conversion measurements of other authors we are able to deduce the spin of the 537 keV level in Rh103 to 5/2+ or 7/2+. The multipolarity of the 497 keVγ-rays in Rh103 is found to be E2 with a small mixture of M1.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 252 (1972), S. 349-361 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The 9/2+→9/2− first forbidden β-transition of Pb209→Bi209 has been investigated. The end point energy has been determined to (644.6±1.2) keV, the half life to (3.253±0.014) h. For the shape factor no deviation from the allowed form has been found within an accuracy of 1%. Shape factor andft-value can be excellently interpreted by the shell model injj-coupling.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 243 (1971), S. 402-408 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The β-γ circular polarization asymmetry for the β 948—γ 2202 keV transition in Ga72 has been measured using the polarimeter developed at Karlsruhe. The result of the measurement isA=−0.203±0.035. From this result and γ-γ angular correlation measurements of other authors we are able to deduce the spin of the 3036 keV level in Ge72 to 2−. The multipolarity of the 2202 keV γ-rays in Ge72 is found to beE1.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 256 (1972), S. 236-242 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Arguments are presented which show that the transverse and longitudinal nuclidic mass relationships of Garvey and Kelson (GK-T and GK-L) contain small but systematic errors. If masses far off the line of β-stability are calculated, these errors accumulate in the repeated application of the relationships, and the diverging predictions from GK-T and GK-L seem to represent estimates of upper and lower limits only. A new generalized nuclidic mass relationship is introduced.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 268 (1974), S. 347-358 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It was aimed to gain information on the nuclear structure of Rb86 by investigation of the 2−→2+ β transition. For this purpose the energy dependence of theβγ angular correlation and the angle dependence of theβγ circular polarization correlation have been measured. A novel experimental set-up has been used for the angular correlation measurement allowing a simultaneous determination of the anisotropy coefficientsA 2 andA 4 under considerable reduction of systematical and statistical errors. For the polarization correlation measurement an unusual experimental arrangement has been applied providing the possibility of simultaneous observation under four different angles. Employing additional data on shape factor measurements and energy dependent circular polarization correlations from other authors the nuclear structure of the 2− state in Rb86 and the 2+ first excited state in Sr86 have been evaluated. For the latter purpose the unified model with weak coupling has been chosen.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Reactions of Subgroup. VI. Hexacarbonyls with Tin(II) and Germanium (II) HalidesThe neutral complexes M(CO)5SnX2 and M(CO)5GeCl2 (M = Cr, Mo, W; X = Cl, Br, J) have been prepared by a photochemical reaction between M(CO)6 and SnX2, or CsGeCl3 in THF. The reaction of these compounds with [N(CH3)4]X (X = Cl, Br, J) in THF was found to lead to a series of anions [M(CO)5SnX3]- or [M(CO)5GeCl3]- (M = Cr, Mo, W; X = Cl, Br, J), some of which have previously been prepared. The physical properties and IR-spectra of the above compounds are discussed.
    Notes: Bei den photochemischen Umsetzungen von M(CO)6 (M = Cr, Mo, W) mit SnX2 (X = Cl, Br, J) bzw. CsGeCl3 in THF bilden sich die Neutralkomplexe M(CO)5SnX2 (M = Cr, Mo, W; X = Cl, Br, J) bzw. M(CO)5GeCl2 (M = Cr, Mo, W), deren Reaktionen mit [N(CH3)4]X (X = Cl, Br, J) in THF zu den zum Teil schon bekannten Anionen [M(CO)5SnX3]- (M = Cr, Mo, W; X = Cl, Br, J) bzw. [M(CO)5GeCl3]- (M = Cr, Mo, W) führen. Die Eigenschaften und IR-Spektren der genannten Verbindungen werden diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 409 (1974), S. 299-310 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Halogeno-cyano-tetracarbonylmetallates (+I) of Manganese and RheniumNa[Mn(CO)5] and Na[Re(CO)5] undergo oxidation and CO-elimination on treatment with ICN in THF to give the cis-iodo-cyano-tetracarbonylmetallates Ka[Mn(CO)4(CN)J] and Na[Re(CO)4(CN)I]. These react with CH3I or Si(CH3)3I to give the respective isonitrile derivatives Mn(CO)4(CNCH3)I, Re(CO)4(CNCH3)I, Mn(CO)4[CNSi (CH3)3]I or Re(CO)4[CNSi(CH3)3]I. The chloro- and bromocomplexes Na[M(CO)4(CN)CI] and Na[M(CO)4(CN)Br] can be obtained by reaction of M(CO)5X (M = Mn, Re; X = Cl, Br) with sodium-bis(trimethylsily1)amide.
    Notes: Na[Mn(CO)5] und Na[Re(CO)5] werden durch JCN in THF unter CO-Eliminierung zu den beiden cis-Jodo-cyano-tetracarbonylmetallaten Na[Mn(CO)4(CN)J] und Na[Re(CO)4(CN)J] oxydiert, die durch CH3J bzw. Si(CH3),3J in die betreffenden Isonitrilderivate Mn(CO)4(CNCH3)J, Re(CO),(CNCH3)J, Mn(CO)4[CNSi(CH3)3]J bzw. Re(CO)4. [CNSi(CH3)3]J überführt werden. Die Chloro- und Bromokomplexe Na[M(CO)4(CN)Cl] und Na[M(CO)4(CN)Br] erhält man durch Umsetzung von M(CO)5X (M = Mn, Re; X = CI, Br) mit Natrium-bis(trimethylsilyl))amid.
    Additional Material: 7 Tab.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 385 (1971), S. 321-324 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Whereas Fe(CO)5 reacts with 2.2′.2″-tripyridyl (tripy) under valence disproportionation, and with 1.1.1-tris(diphenylphosphinemethylene)ethane (TP) to form mixtures of difficulty separable compounds, C8H8Fe(CO)3 (C8H8 = cyclooctatetraene) forms at 150°C with tripy and TP, under elimination of C8H8 and one of the CO groups, the diamagnetic dicarbonyl derivatives Fe(CO)2(tripy) and Fe(CO)2(TP), respectively. At lower temperatures also a tricarbonyl TP complex is obtainable, Fe(CO)3(TP), in which the tridentate P ligand has only a bidentate function.
    Notes: Während sich Fe(CO)5 mit 2,2′,2″-Tripyridyl (tripy) unter Valenzdisproportionierung und mit 1,1,1-Tris(diphenylphosphinmethylen)äthan (TP) zu schwer trennbaren Verbindungsgemischen umsetzt, bilden sich mit C8H8Fe(CO)3 (C8H8 = Cyclooctatetraen) und den genannten N- und P-Liganden bei 150°C unter Substitution des Olefins und einer CO-Gruppe die diamagnetischen Dicarbonylderivate Fe(CO)2(tripy) bzw. Fe(CO)2(TP). Unter milderen Temperaturbedingungen entsteht mit TP der Tricarbonylkomplex Fe(CO)3TP, in dem der dreizähnige P-Ligand nur zweizähnig fungiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 385 (1971), S. 325-328 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The dicarbonyl complex Fe(CO)2(TP)I2 is obtained by CO-substitution of Fe(CO)4I2 with 1,1.1-tris(diphenylphosphinomethylene)ethane (TP), in which the tridentate phosphorus ligand functions only bidentate. By a further reaction with iodine the tetraiodo complex Fe(CO)2(TP)I4 is formed, in which ever two iodine atoms are bonded to the metal and to the phosphorus. The same compound type is also formed by the oxydation of the trigonal-bipyramidally configurated Fe(CO2)TP with the halides chlorine, bromine and iodine in a molar ratio 1:2.
    Notes: Bei der CO-Substitution von Fe(CO)4J2 mit 1,1,1-Tris(diphenylphosphinmethylen)äthan (TP) erhält man den Dicarbonylkomplex Fe(CO)2(TP)J2, in dem der dreizähnige Phosphorligand nur zweizähnig fungiert. Bei der weiteren Umsetzung mit Jod entsteht der Tetrajodokomplex Fe(CO)2(TP)J4, in dem je zwei Jodatome an das Metall und an den Phosphor gebunden sind. Der gleiche Verbindungstyp entsteht auch bei der Oxydation des trigonal-bipyramidal konfigurierten Fe(CO)2TP mit den Halogenen Chlor, Brom und Jod im Molverhältnis 1:2.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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