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  • 1
    Electronic Resource
    Electronic Resource
    Einfache Synthesen von Schwefel-Stickstoff-Verbindungen (1977)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 2695-2698 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Easy Syntheses of Sulfur-Nitrogen CompoundsThe sulfonamide CF3SO2NH2 (2a) reacts with S3N2Cl2 1, which can be prepared from urea and S2Cl2, to yield S3N3SO2CF3 3 with formation of hydrogen chloride while CH3SO2NH2 (2b) yields (CH3SO2NSN)2S 4 under cleavage of the ring system of 1. Under similar conditions 1 reacts with SO2(NH2)2 to form S4N4O2 5. The structure of 5 is confirmed by X-ray analysis. The hydrolysis of 1 with anhydrous formic acid or acetic anhydride yields S3N2O 6. Five-membered S3N2-rings 9a-c are formed by the reaction of S4N4 with the anhydrides (FSO2)2O, (CF3CO)2O, and (CCl3CO)2O.
    Notes: Das Sulfonsäureamid CF3SO2NH2 (2a) reagiert mit S3N2Cl2 1, das aus Harnstoff und S2Cl2 hergestellt werden kann, unter Chlorwasserstoffabspaltung zu S3N3SO2CF3 3, während CH3SO2NH2 (2 b) unter Ringspaltung (CH3SO2NSN)2S 4 bildet. 1 und SO2(NH2)2 ergeben unter ähnlichen Bedingungen S4N4O2 5, dessen Struktur durch Röntgenstrukturanalyse bestätigt wird. Die Hydrolyse von 1 liefert mit wasserfreier Ameisensäure oder Acetanhydrid S3N2O 6. Fünfgliedrige S3N2-Ringe 9a-c lassen sich auch darstellen, wenn S4N4 mit den Anhydriden (FSO2)2O, (CF3CO)2O und (CCl3CO)2O umgesetzt wird.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19771100804
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Bildung von neuartigen 1,2,3-Selenadiazolin-Systemen (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 3423-3428 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Formation of Novel 1,2,3-Selenadiazoline SystemsIntroduction of acyl groups to 1 may occur at the four heteroatoms as reactive centres. Although the reaction with acetic acid leads by H⊕ ion catalysis to the corresponding ester 3, an attack at N-2 occurs with acyl chlorides or p-toluenesulfonyl chloride in an alkaline medium. Tricyclic 1,2,3-selenadiazolines 4A are formed. Elucidation of the structure is performed by detailed spectroscopic investigations. Especially valuable for this purpose is the 13C-77 Se coupling in the NMR.
    Notes: Bei der Acylierung von 1 kommen die vier Heteroatome als reaktive Zentren in Betracht. Während die Umsetzung mit Essigsäure unter H⊕-Ionen-Katalyse zur Esterbildung führt (3), erhält man mit Carbonsäurechloriden oder p-Toluolsulfonylchlorid im basischen Medium einen Angriff an N-2. Dabei entstehen die tricyclischen 1,2,3-Selenadiazoline 4A. Die Strukturaufklärung gelingt mit Hilfe eingehender spektroskopischer Untersuchungen. Als besonders wertvoll erweist sich dabei die 13C-77 Se-Kopplung in der Kernresonanz.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781111016
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  • 3
    Electronic Resource
    Electronic Resource
    Thiatriazadiphosphorin (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 1545-1549 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: ThiatriazadiphosphorinePentachlorothiatriazadiphosphorine 2 is formed by the reaction of bis(trimethylsilyl)sulfur diimide and phosphorus pentachloride. With SbCl5 2 yields the complex N3P2Cl4S+SbCl6-(2a). Its structure was elucidated on the basis of an X-ray analysis. 2a crystallizes in the orthorhombic space group Pnma.The cation exhibits a planar six-membered ring with a two-coordinate sulfur atom. The S—N distances were found to be 155.6 and 156.4 pm, respectively(∢ NSN 119.9°).
    Notes: Das Pentachlorthiatriazadiphosphorin 2 bildet sich bei der Reaktion von Bis (trimethylsilyl)schwefeldiimid mit Phosphorpentachlorid. Aus SbCl5 und 2 entsteht der Komplex N3P2Cl4S+SbCl6- (2a), dessen Molekülstruktur durch eine Röntgenstrukturanalyse aufgeklärt wurde. 2a kristallisiert orthorhombisch in der Raumgruppe Pnma. Für das Kation ergibt sich ein planarer Sechsring mit zweifach koordiniertem Schwefel. Die S—N-Abstände wurden zu 155.6 bzw. 156.4 pm bestimmt (∢ NSN 119.9°).
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791120506
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  • 4
    Electronic Resource
    Electronic Resource
    Synthese und Röntgenstrukturanalyse des Additionsproduktes von Schwefeltrioxid an Tetraschwefeltetranitrid (S4N4· SO3)Professor Martin Schmeißer zum 65. Geburtstage am 28. November 1977 gewidmet (1978)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 440 (1978), S. 119-129 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and X-ray Structure Analysis of the Addition Compound of Sulfurtrioxide and Tetrasulfurtetranitride (S4N4· SO3)S4N4 · SO3 was obtained by reaction of S4N4 with SO3 in CH2Cl2 and by solvent free reaction of S4N4 with Fluorosulfonic acid anhydride. The structure of the adduct could be determined by single crystal X-ray structure analysis. The “cage” of the S4N4 is analogous to the structure of S4N4 · SbCl5 reconvoluted into a deformated saddle conformation with nearly Cs-symmetry. The S—N bond lengths in the S4N4 ring vary from 1.51 to 1.69 Å. The Cs-symmetry is significantly disturbed by the position of the SO3 group. In the crystal structure with monoclinic unit cell of space group P21/n the molecules are packed into columns, which are arranged pseudohexagonally.
    Notes: S4N4 · SO3 wurde durch Reaktion von S4N4 mit SO3 in CH2Cl2 und über eine lösungsmittelfreie Umsetzung von S4N4 mit Fluorsulfonsäureanhydrid erhalten. Eine Einkristall-Röntgen-Strukturanalyse lieferte die Struktur des Adduktes. Der „Käfig“ des freien S4N4 faltet analog der Struktur des S4N4 · SbCl5 in eine deformierte Sattelkonformation mit näherungsweise Cs-Symmetrie um. Die S—N-Bindungsabstände im S4N4-Ring Variieren von 1,51 bis 1,69 Å. Die Cs-Symmetrie wird deutlich durch die Stellung der SO3-Gruppe durchbrochen. In der Kristallstruktur mit einer monoklinen Elementarzelle der Raumgruppe P21/n ordnen sich die Moleküle in Säulen mit pseudohexagonaler gegenseitiger Anordnung.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19784400112
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  • 5
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    Neural lateralization of species-specific vocalizations by Japanese macaques (Macaca fuscata) (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-10-20
    Description: Five Japanese macaques and five other Old World monkeys were trained to discriminate among field-recorded Japanese macaque vocalizations. One task required discrimination of a communicatively relevant acoustic feature ("peak"), and a second required discrimination of an orthogonal feature of the same vocalizations ("pitch"). The Japanese animals more proficiently discriminated the peak feature when stimuli were presented to the right ear (primarily left cerebral hemisphere), as opposed to the left ear (primarily right hemisphere). In discriminating the pitch feature, the Japanese animals either showed (i) a left-ear processing advantage or (ii) no ear advantage. The comparison animals, with one exception, showed no ear advantage in processing either feature of the vocalizations. The results suggest that Japanese macaques engage left-hemisphere processors for the analysis of communicatively significant sounds that are analogous to the lateralized mechanisms used by humans listening to speech.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Petersen, M R -- Beecher, M D -- Zoloth, S R -- Moody, D B -- Stebbins, W C -- New York, N.Y. -- Science. 1978 Oct 20;202(4365):324-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/99817" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Auditory Perception/*physiology ; Discrimination Learning/physiology ; Female ; *Functional Laterality ; Haplorhini ; Macaca/*physiology ; Male ; Species Specificity ; Vocalization, Animal/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    PAPER CURRENT
  • 6
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    The computation of isentropic atmospheric trajectories using a 'discrete model' formulation (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: An explicit technique for calculating atmospheric trajectories is presented as an alternative method to the standard implicit scheme of Danielsen (1961). The technique uses the inviscid equations of motion and the discrete model formulation derived by Greenspan (1972, 1973) to compute trajectories on isentropic surfaces, assuming adiabatic flow. The discrete model formulation is designed specifically for a Lagrangian system and objectively accounts for the geostrophic departures, local psi-tendencies, and the subsequent accelerations along the entire length of the trajectory. Application of the discrete formulation to a diagnostic case study yielded favorable results.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Monthly Weather Review; 107; May 1979
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    A model for the simulation of atmospheric turbulence (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A method that produces realistic simulations of atmospheric turbulence is developed and analyzed. The procedure makes use of a generalized spectral analysis, often called a proper orthogonal decomposition or the Karhunen-Loeve expansion. A set of criteria, emphasizing a realistic appearance, a correct spectral shape, and non-Gaussian statistics, is selected in order to evaluate the model turbulence. An actual turbulence record is analyzed in detail, providing both a standard for comparison and input statistics for the generalized spectral analysis. The simulation utilizes the eigenfunction-expansion procedure to produce preliminary time histories of the three velocity components simultaneously. It is found that important cross-statistical features are reasonably well-behaved.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Journal of Applied Meteorology; 15; June 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Contributions to the simulation of turbulence (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The simulation modeling of turbulence in the boundary layer in consolidated in terms of boundary layer similarity principles and empirical results. The modeling is extended for some aspects of the nonlinear and non-Gaussian structure of the turbulence. Properties of the discrete gust form structure of the modeled turbulence are identified.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-CR-2762 , M-191
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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