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  • 1
    Journal/Serial
    Journal/Serial
    Bonn : Festland-Verl. | Bonn : Nfa Vertriebs- u. Werbeges. | Bonn : Verl. Europapress | Baden-Baden ; Bonn ; Frankfurt, M. : Lutzeyer | Bonn : Europa-Verl. ; [1.]1950; 2.1952 - 28.1978; 29.1979/80(1979) - 52.2002/03(2002); 53.2004(2003)-67. Jahrgang (2018)
    Keywords: Öffentlichkeit ; Einrichtung ; Öffentlichkeit ; Einrichtung ; Deutschland ; Deutschland (Bundesrepublik) ; Adressbuch ; Adressbuch ; Zeitschrift ; Verzeichnis ; Adressbuch ; Deutschland 03.10.1990- ; Öffentlichkeit ; Einrichtung ; Adressbuch ; Deutschland 〈Bundesrepublik〉 23.05.1949-02.10.1990 ; Öffentlichkeit ; Einrichtung ; Adressbuch
    Type of Medium: Journal/Serial
    ISSN: 0082-1829
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    Language: German
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  • 2
    Journal/Serial
    Journal/Serial
    Bonn : Festland-Verl. ; 1.1996 - 3.1998; 4.1999/2000(1999) -
    Keywords: Europäische Union ; Europäische Union ; Europäische Union ; Einrichtung ; Internationale Kooperation ; Einrichtung ; Internationale Kooperation ; Internationale Organisation ; Politische Institution ; Interessenverband ; Europa ; Zeitschrift ; Verzeichnis ; Adressbuch ; Europäische Union ; Einrichtung ; Internationale Kooperation ; Europäische Union ; Einrichtung ; Internationale Kooperation ; Europa ; Internationale Organisation ; Europäische Union ; Politische Institution ; Interessenverband
    Type of Medium: Journal/Serial
    Pages: 22 cm
    ISSN: 1433-9293
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    Former Title: Directory of public life
    Language: German , English
    Note: Ersch. jährl.
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  • 3
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    Hamburg: Verlag Weltarchiv | ZBW – Leibniz Information Centre for Economics Kiel, Hamburg
    Publication Date: 2018-09-10
    Keywords: ddc:330
    Language: German
    Type: doc-type:article
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  • 4
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 40 (1999), S. 3588-3603 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: We give a complete classification of bicovariant first order differential calculi on the quantum enveloping algebra Uq(b+) which we view as the quantum function algebra Cq(B+). Here, b+ is the Borel subalgebra of sl2. We do the same in the classical limit q→1 and obtain a one-to-one correspondence in the finite dimensional case. It turns out that the classification is essentially given by finite subsets of the positive integers. We proceed to investigate the classical limit from the dual point of view, i.e., with "function algebra" U(b+) and "enveloping algebra" C(B+). In this case there are many more differential calculi than coming from the q-deformed setting. As an application, we give the natural intrinsic four-dimensional calculus of κ-Minkowski space and the associated formal integral. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Polycyanobenzenes, II. Preparation of Pentacyanophenol and the Halopentacyanobenzenes from HexacyanobenzeneHexacyanobenzene (1) reacts with water to give the strongly acidic pentacyanophenol (2) (pKa - 2.9), which can easily be converted to pentacyanoanisole (4) as well as to chloro-and bromopentacyanobenzene (3) and (5) resp Fluoro- and iodopentacyanobenzene (6) and (7) resp. are prepared from 3. Reductive dehalogenation of 7 yields pentacyanobenzene(8).
    Notes: Hexacyanbenzol (1) reagiert mit Wasser unter Bildung des stark sauren Pentacyanphenols (2) (pKs -2.9), aus dem Pentacyananisol (4), sowie Chlor- und Brompentacyanbenzol (3) bzw. (5) leicht zugänglich and. Aus 3 werden Fluor- und Jodpentacyanbenzol (6) bzw. (7) dargestellt. Die reduktive Enthalogenierung von 7 ergibt Pentacyanbenzol (8).
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Polycyanobcnzenes, III. Reactions of Hexacyanobenzene with Alcohols. Pentacyanopbenyl Ethers and Polycyanosubstituted Meisenheimer ComplexesHexacyanobenzene (1) reacts with alcohols at 20°C sluggishly to give pentacyanophenyl ethers (2, 3) which are also obtained by reaction of molar amounts of alcoholates with 1 or with chloropentacyanobenzene (4). At moderately elevated temperatures the pentacyanophenyl ethers transfer their alkyl group to alcohols to give aliphatic ethers and pentacyanophenol (5). Meisenheimer complexes 11 which are stable in solution are formed either by addition of sodium alcoholates to 1 or sodium cyanide to pentacyanophenyl ethers. Upon acidification the complexes yield mixtures of 1 and the corresponding pentacyanophenyl ether. As a consequence of these observations a new synthesis of 1 and 4 is devised.
    Notes: Hexacyanbenzol (1) reagiert bei 20°C langsam mit Alkoholen unter Bildung der entsprechenden Pentacyanphenyläther (2,3), die sich auch bei der Einwirkung molarer Mengen Alkoholat auf 1 oder Chlorpentacyanbenzol (4) bilden. Die Pentacyanphenyläther übertragen bei mäßig erhöhter Temperatur ihre Alkylgruppe auf Alkohole unter Bildung von aliphatischen Äthern und Pentacyanphenol (5). Die Bildung von Meisenheimer-Komplexen 11 aus 1 und Natriumalkoholat oder aus Pentacyanphenyläthern und Natriumcyanid in Lösung wird nachgewiesen. Die Komplexe 11 zerfallen beim Ansäuern in Gemische aus 1 und dem entsprechenden Pentacyanphenyläther. Aufgrund dieser Beobachtungen wird eine neue Darstellung von 1 und 4 direkt aus 1,3,5-Trichlor-2,4,6-tricyanbenzol (6) ausgearbeitet.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Polycyanobenzenes, IV. Reactions of Hexacyanobenzene and Chloropentacyanobenzene with AminesHexacyanobenzene (1) reacts with ammonia or dimethylamine at 20°C to give the products of mono- and 1,3-disubstitution, resp., which are similarly obtained from chloropentacyanobenzene (3) For a sufficient reaction rate with aniline or 1,2-diaminobenzene a temperature of 80°C is required The structure of the disubstituted products is elucidated.
    Notes: Hexacyanbenzol (1) setzt sich mit Ammnoniak oder Dimethylamin bei 20°C zu Mono- bzw, 1,3-Disubstitutionsprodukten um, die entsprechend auch mit Chlorpentacyanbenzol (3) erhalten werden Mit Anilin oder o-Phenylendiamin erfolgt erst bei 80°C eine Reaktion mit ausreichender Geschwindigkeit Die Strukturaufklärung der Disubstitutionsprodukte wird beschrieben.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    ISSN: 0167-4781
    Keywords: (Escherichia coli) ; (Rhodopseudomonas viridis) ; Cytochrome ; Gene expression ; Inclusion body ; c-type
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    ISSN: 0167-4781
    Keywords: (Rhodobacter sphaeroides) ; Affinity chromatography ; Gene cassette ; Heterologous expression in E. coli ; Protein A fusion ; Reaction center protein
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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