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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 84 (1980), S. 3638-3646 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 83 (1979), S. 738-741 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The journal of Fourier analysis and applications 5 (1999), S. 193-201 
    ISSN: 1531-5851
    Keywords: Primary 30D15 ; 42C15 ; Secondary 30D10 ; 42C30 ; Paley-Wiener space ; entire functions of exponential type ; exponential frames ; discrete norms ; sampling theorem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract It is well known that for certain sequences {tn}n∈ℤ the usual Lp norm ∥·∥p in the Paley-Wiener space PW τ p is equivalent to the discrete norm ‖f‖p,{tn}:=(∑ n=−∞ ∞ |f(tn)|p)1/p for 1 ≤ p = 〈 ∞ and ‖f‖∞,{tn}:=sup n∈ℤ|f(tn| for p=∞). We estimate ∥f∥p from above by C∥f∥p, n and give an explicit value for C depending only on p, τ, and characteristic parameters of the sequence {tn}n∈ℤ. This includes an explicit lower frame bound in a famous theorem of Duffin and Schaeffer.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 3792-3798 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal and Molecular Structure of O,O′-Diethyl 5-tert-ButyldithioisophthalateThe structure of the title compound (4) has been determined from X-ray data by means of direct methods and refined to R=0.057. 4 crystallizes in the space group P1¯.  -  The molecule is approximately planar; the interplanar angles between the plane of the benzene ring and those of the RO—CS-groups being 5.3° and 7.6°, respectively. The C=S bond length of 1.631 ± 0.002 Å points to a moderate double bond character.
    Notes: Die Struktur der Titelsubstanz (4) wurde röntgenographisch mit Hilfe der Direktmethode bestimmt und bis zu einem R von 0.057 verfeinert. 4 kristallisiert in der Raumgruppe P1¯.  -  Das Molekül ist fast eben gebaut; die Interplanarwinkel zwischen der Ebene des Benzolrings und denen der RO—CS-Gruppen betragen 5.3° und 7.6°. Die C=S-Bindungslänge von 1.631 ± 0.002 Å läßt auf einen mäßig ausgeprägten Doppelbindungscharakter schließen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 1511-1517 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Alkynul Compounds of Transition Metals, XXIX. Alkynyl[ethylenebis(diphenylphosphine)] complexes of Platinum(II)cis-[PtCl2(dpe)] reacts with alkali acetylides in liquid ammonia or liquid methylamine to yield nonionic monomers of the type cis-[Pt(C≡C̊)2(dpe)] (dpe = (C6H5)2P[CH2]2P(C6H5)2; R = H, CH3, C6H5). The analogous reaction with the divalent anion of o-diethynylbenzene, however, gives the polymeric cis-[Pt(C≡C)2C6H4(dpe)]n, cis-[Pt(C≡C)2C6H4(dpe)]n. With an excess of acetylide polymeric complexes of the type [K2Pt(C≡C̊)4(dpe)]n are precipitated.
    Notes: Durch Umsetzung von cis-[PtCl2(dpe)] mit Alkaliacetyliden in flüssigem Ammoniak bzw.flüssigem Methylamin werden nichtionische, einkernige Verbindungen des Typs cis-[Pt(C≡C̊)2(dpe)] (dpe = (C6H5)2P[CH2]2P(C6H5)2; R = H, CH3, C6H5) dargestellt. Eine analoge Reaktion mit dem zweiwertigen Anion des o-Diäthinylbenzols hingegen führt zu einem koordinationspolymeren cis-[Pt(C≡C)2C6H4(dpe)]n. Die Anwendung eines Acetylidüberschusses führt zu polymeren Komplexen des Typs [K2Pt(C≡C̊)4(dpe)]n.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 761-768 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal and Molecular Structure of Bis(di-tert-butylmethyl) OxalateThe structure of the title compound (4) has been determined from X-ray data and refined to R = 0.048. 4 crystallizes in the space group C2/c with lattice parameters a = 23.599(4) Å, b = 12827(1) Å, C = 15.272(2) Å and β = 108.89(2)°. - The molecule exhibits the unusual Z-configuration. Bond lenghts and angles show no particularities with the exception of the central C—C-bond which appears significantly short (a = 1.531 Å).
    Notes: Die Struktur der Titelsubstanz (4) wurde röntgenorgraphisch bestimmt und bis zu einem R von 0.048 verfeinert. 4 kristallisiert in der Raumgruppe C2/c mit den Zellparametern a = 23.599(4) Å, b = 12.827 (1) Å, c = 15.272(2) Å und β = 108.89(2)°. - Das Molekül liegt in der ungewöhnlichen Z-Konfiguration vor. Bindungslängen und -winkel zeigen mit Ausnahme der zentralen C—C-Bindung, die mit A = 1.531 Å relativ kurz erscheint, normale Werte.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 1159-1166 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Twisted Oxalic Acid Derivatives The Crystal and Molecular Structure of N,N,N′,N′-Tetramethyloxamide and -monothiooxamideThe structures of the title compounds (2 and 3) have been determined from X-ray data, and refined to R = 0.065 (2) and 0.057 (3) respectively. 2 crystallizes in the space group C2/c, 3 in the space group P21/c. - In the crystal 2 exhibits a configuration in which the two halves of the molecule are twisted by 71.4°. This angle amounts to 87.4° in 3.
    Notes: Die Strukturen der Titelsubstanzen (2 und 3) wurden röntgenographisch bestimmt und bis zu R-Werten von 0.065 (2) bzw. 0.057 (3) verfeinert. 2 kristallisiert in der Raumgruppe C2/c, 3 in der Raumgruppe P21/c. - 2 liegt im Kristall in einer Konfiguration vor, bei der die beiden Molekülhälften um 71.4° gegeneinander verdrillt sind; bei 3 beträgt dieser Winkel 87.4°.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 120 (1987), S. 67-70 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Thioethers 3 and monothioacetals 4 are obtained on cathodic reduction of thiopivalophenone (2) in alcohols as solvents in the presence of alkylating agents.
    Notes: Bei der kathodischen Reduktion von Thiopivalophenon (2) in Alkoholen als Lösungsmittel in Gegenwart von Alkylierungsmitteln erhält man neben den Thioethern 3 die Monothioacetale 4.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 2251-2253 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Electroreduction of Organic Compounds, 13. - Coelectroreduction of Methyl Dithiocarboxylates with HalogenoarenesCoelectroreduction of methyl dithiopivalate (1) or dithiobenzoate (11) with a monohalogenobenzene does not result in any characteristic products. However, the aryl methyl dithioacetals 7 and 8 are formed on cathodic reduction of 1 in the presence of the o-dihalogenobenzenes 4 and 5, respectively. - An SNAr mechanism is proposed, which is also in accordance with the formation of 2-bromobenzenethiolate (9) from 1 and 4 or 5.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 1733-1737 
    ISSN: 0009-2940
    Keywords: Dithiolactones ; Electroreduction ; Haloalkanedithioates ; Thioacetals, semicyclic ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Intramolecular cyclization occurs on electroreduction of the methyl -haloalkanedithioates 1 in methanol. The expected semicyclic thioacetals 2 are formed according to an ECEH mechanism. The biheterocycles 12 result from dimerization of intermediate radicals whereas the semicyclic ketene dithio-acetals 13 are formed by non-electrochemical processes. The 2-(methylthio)thiolanes 2 a and 16 are obtained with much higher yields and better selectivity by co-electroreduction of the -dithio-lactones 15 in the presence of dimethyl sulfate.
    Type of Medium: Electronic Resource
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