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  • Inorganic Chemistry  (14)
  • 82.65  (3)
  • Transition metals  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Energy-adjustedab initio pseudopotentials for the second and third row transition elements: Molecular test for M2 (M=Ag, Au) and MH (M=Ru, Os) (1991)
    Springer
    Theoretical chemistry accounts 78 (1991), S. 247-266 
    Details
    ISSN: 1432-2234
    Keywords: Pseudopotentials ; Transition metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Recently published nonrelativistic and quasirelativistic energy-adjustedab initio pseudopotentials representing the M(Z−28)+ cores of the second row transition metal atoms and the M(Z−60)+ cores of the third row transition metal atoms have been tested in SCF, CI(SD) and CEPA1 calculations of the spectroscopic constants (R e ,D e , and ω e ) of the ground states of the neutral and singly charged silver and gold dimers, and in state averaged CASSCF and multi-reference CI(SD) calculations of the spectroscopic constants (R e ,D e , ω e , μ e , ∂μ/∂R). Comparison is made with experimental and reliable theoretical data where available; in the case of the hydrides, additional calculations with pseudopotentials published by other groups have been made for comparison.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01112848
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  • 2
    Electronic Resource
    Electronic Resource
    Energy-adjustedab initio pseudopotentials for the second and third row transition elements (1990)
    Springer
    Theoretical chemistry accounts 77 (1990), S. 123-141 
    Details
    ISSN: 1432-2234
    Keywords: Pseudopotentials ; Spin-orbit operator ; Transition metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Nonrelativistic and quasirelativisticab initio pseudopotentials substituting the M(Z−28)+-core orbitals of the second row transition elements and the M(Z−60)+-core orbitals of the third row transition elements, respectively, and optimized (8s7p6d)/[6s5p3d]-GTO valence basis sets for use in molecular calculations have been generated. Additionally, corresponding spin-orbit operators have also been derived. Atomic excitation and ionization energies from numerical HF as well as from SCF pseudopotential calculations using the derived basis sets differ in most cases by less than 0.1 eV from corresponding numerical all-electron results. Spin-orbit splittings for lowlying states are in reasonable agreement with corresponding all-electron Dirac-Fock (DF) results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01114537
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  • 3
    Electronic Resource
    Electronic Resource
    Quantum chemical investigations of the latent image formation (1987)
    Springer
    The European physical journal 6 (1987), S. 193-198 
    Details
    ISSN: 1434-6079
    Keywords: 31.15 ; 36.40 ; 82.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Having studied free silver clusters by quantum chemical calculations we now present a method to take into account the influence of a silver halide surface on adsorbed silver clusters. The model for the surface will be a silver halide cluster as frozen crystal section. The interactions are discussed in detail; a new bromide pseudopotential may be of special interest. Results with this method will be given in subsequent papers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01384605
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  • 4
    Electronic Resource
    Electronic Resource
    Quantum chemical investigations of the latent image formation (1987)
    Springer
    The European physical journal 6 (1987), S. 287-292 
    Details
    ISSN: 1434-6079
    Keywords: 31.20 ; 36.40 ; 82.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The adsorption of Ag+ and Ag on a (100) AgBr surface is investigated. Interstitial subsurface sites and incomplete surfaces (with ledges and kinks) are also considered. Equilibrium geometries, adsorption energies and ionization potentials have been calculated. Migration of neutral Ag on the surface and crystal growth of AgBr are discussed, and a comparison with other theoretical results is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01436676
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  • 5
    Electronic Resource
    Electronic Resource
    Quantum chemical investigations of the latent image formation (1990)
    Springer
    The European physical journal 15 (1990), S. 79-86 
    Details
    ISSN: 1434-6079
    Keywords: 31.20 ; 36.40 ; 82.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The alternating process of adsorption of Ag+ and trapping of a photoelectron on a (100) AgBr surface is investigated by quantum chemical calculations. The results give some insight into the initial steps of the photographic process (absorption of two photons which lead to the formation of a sublatent image).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01436914
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  • 6
    Electronic Resource
    Electronic Resource
    Darstellung und Schwingungsspektrum von Tetrathiomethyl-phosphonium-hexachloroantimonatFrau Professor Margot Becke-Goehring zum 60. Geburtstage gewidmet (1974)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 406 (1974), S. 307-311 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Vibrational Spectrum of Tetra-thiomethyl-phosphoniuin-hexachloroantimonatePreparation, properties and vibrational spectrum of Tetra-thiomethyl-phosphonium-hexachloroantimonate are reported. The kind of bonding in the ion is brief discussed.
    Notes: Es wird über die Darstellung, Eigenschaften und Schwingungsspektren des Tetra-thiomethyl-phosphonium-hexachloroantimonats berichtet. Die Bindungsverhältnisse werden kurz diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19744060225
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  • 7
    Electronic Resource
    Electronic Resource
    Über das Fluoreszenzthermochrome Acetonitrilo-Kupferjodid mit Dibenzo-18-Krone-6 (1978)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 442 (1978), S. 221-224 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: About the Fluorescence Thermochromism of Acetonitrile Copper Iodide with Dibenzo-18-Crown-6Copper iodide reacts in actonitrile solution with dibenzo-18-crown-6 to form a compound,(CuJ)4(CH3CN)4(db-18-c-6), which fluoresces yellow at 298K, but pink at 77 K. It decomposes at 55.3°C. (5 Torr) by lost of acetonitrile and a heterogeneous mixture of copper iodide and polyether results. In absence of dibenzo-18-crown-6, copper iodide forms with acetonitrile a heterogeneous mixture of copper iodide and polyether results. In absence of dibenzo-18-crown-6, copper iodide forms with acetonitrile a solvate CuJ. CH3CN. It also shows fluorescence thermochromism (yellow at 298 K, but green at 77 k) but decomposes at 0°C and 760 Torr.The luminescences pectra of the macrocyclic polyether complex at 298 K is redshifted. This probably results from intersection between the crown and the acetonitrile copper iodide.
    Notes: Kupferjodid bildet in Acetonitril mit Dibenzo-18-Krone-6 eine Verbindung der Zusammensetzung (CuJ)4(CH3CN)4(db-18-c-6), die bei Raumtemperatur gelb, bei 77K rosa fluoresziert. Sie zersetzt sich bei 55,3°C (5 Torr) unter Verlust von Acetonitril zu einem heterogenen Gemenge aus Kronenäther Kupferjodid.In Abwesenheit von Kronenäther bildet Kupferjodid in Acetonitril ein Solvat CuJ · CH3CN. Es ist ebenfalls fluoreszenzthermochrom (gelb bei 298 K, grün bei 77 K) und zersetzt sich allerdings schon bei 0°C( 760 Torr). Das Lumineszenzspektrum des makrocyclischen Polyätherkomplexes ist bei 298 K rotverschoben, was wahrscheinlich auf die Wechselwirkung des Kronenäthers mit dem Acetonitrilo-Kupferjodid zurückzuführen ist.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19784420129
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  • 8
    Electronic Resource
    Electronic Resource
    Schwingungsspektren und Kraftkonstanten der Übergangsreihen OPF3 - OP(CH3)3 und SPF3 - SP(CH3)3 (1972)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 389 (1972), S. 269-279 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The vibration spectra (IR and RAMAN) are reported for OPF2(CH3), OPF(CH3)2, SPF2(CH3), SPF(CH3)2 and SPF2(C2H5) and assigned to the normal vibrations. For these compounds all valence force constants are calculated by a simplified valence force field. Substitution of fluorine atoms by the methyl group causes a diminuation of all force constants. There is a clear difference between Δf P—CH3 (- 18%) and Δf X =P and Δf P—F (-30%). The P—CH3 bond is incapable to form dπ—pπ-bonds. Therefore the diminuation of f P—CH3 is caused only by the inductive effect.
    Notes: Von OPF2(CH3), OPF(CH3)2, SPF2(CH3), SPF(CH3)2 und SPF2(C2H5) werden die Schwingungsspektren (meistens IR und RAMAN) mitgeteilt und den Grundschwingungen zugeordnet. Gemeinsam mit den Endgliedern XPF3 und XP(CH3)3 (X = O, S) werden die Valenzkraftkonstanten nach einem Näherungsverfahren berechnet. Sämtliche Kraftkonstanten nehmen beim Ersatz von Fluor durch die Methylgruppe stark ab. Für f P—CH3 (-18%) ergibt sich gegenüber f P = X und f P—F (-30%) ein deutlicher Unterschied, bedingt durch die Unfähigkeit der CH3-Gruppe zur Ausbildung von dπ—pπ-Bindungen. Die Abnahme für f P—CH3 wird auf den induktiven Effekt allein zurückgeführt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19723890307
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  • 9
    Electronic Resource
    Electronic Resource
    Schwingungsspektren und Kraftkonstanten der Übergangsreihen OP(N(CH3)2)3-OPCI3 und SP(N(CH3)2)3-SPCl3Professor Oskar Glemser zum 60. Geburtstage gewidmet (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 385 (1971), S. 56-64 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The vibrational spectra (IR and RAMAN) from XP(N(CH3)2)2Cl and XP(N(CH3)2)Cl2 (X = O, S) are reported. The spectra are discussed and assigned to the normal vibrations in connection with the spectra of XP(N(CH3)2)3 and XPCl3. The valence force constants are calculated by a simplified valence force field. f P-NR2 and f P-Cl decrease slightly on substitution of the NR2 group by chlorine; f P-X, on the contrary, increases very distinctly. This is caused by the change from an element of the second period to an element of the third one.
    Notes: Es werden die Schwingungsspektren (IR und RAMAN) von XP(N(CH3)2)2Cl und XP(N(CH3)2)Cl2 mitgeteilt und in Zusammenhang mit den Spektren der Randglieder dieser Reihe XP(N(CH3)2)3 und XPCl3 (X = O, S) diskutiert und zugeordnet. Auf dieser Grundlage wurden nach einem Näherungsverfahren die Valenzkraftkonstanten ermittelt. Während f P-NR2 und f P-Cl beim Ersatz der NR2-Gruppen durch Chlor leicht abnehmen. zeigen beide f P-X eine starke Zunahme. Da beide Bindungspartner (NR2 und Cl) ungefähr gleiche Elektronegativität besitzen, so muß die starke Zunahme von f P-X auf die Zugehörigkeit der beiden Bindungspartner zu verschiedenen Perioden des Systems zurückgeführt werden.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19713850109
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  • 10
    Electronic Resource
    Electronic Resource
    Schwingungsspektren und Kraftkonstanten der Übergangsreihen OPF3—OP(OCH3)3 und SPF3—SP(OCH3)3Professor Günther Rienäcker zum 70. Geburtstage am 13. Mai 1974 gewidmet (1974)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 405 (1974), S. 275-285 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Vibrational Spectra and Force Constants of the Series OPF3—OP(OCH3)3 and SPF3—SP(OCH3)3The vibrational spectra (IR and RAMAN) for OPF2(OCH3), OPF(OCH3)2, SPF2(OCH3) and SPF(OCH3)2 are reported and assigned to the normal vibrations. The valence force constants are calculated by a simplified valence force field. The changes of the bonds are discussed.
    Notes: Es werden die Schwingungsspektren (IR und RAMAN) von OPF2(OCH3), OPF(OCH3)2, SPF2(OCH3) und SPF(OCH3)2 mitgeteilt und die Zuordnung zu den Grundschwingungen vorgenommen. Nach einem Näherungsverfahren werden die Valenzkraftkonstanten berechnet und die Bindungsverhältnisse diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19744050308
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