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  • Wiley  (115)
  • Wiley-Blackwell  (62)
  • 11
    Electronic Resource
    Electronic Resource
    Chemical Interconversions in the System TP*Zn/CO2/Alcohol [Tp* = Substituted Tris(pyrazolyl)borate]Dedicated to Prof. Walter Siebert on the occasion of his 60th birthday. (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 101-104 
    Details
    ISSN: 0009-2940
    Keywords: Zinc complexes ; Alkyl carbonate complexes ; CO2 fixation, reversible ; Catalysis ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The zinc hydroxide complexes Tp*Zn-OH with TpCum,Me = tris(3-cumenyl-5-methylpyrazolyl)borate and TptBu,Me = tris(3-tert-butyl-5-methylpyrazolyl)borate can be converted to the alkyl carbonate complexes Tp*Zn-OCOOR by reaction with dialkyl dicarbonates or with alcohol and CO2. An alternative formation reaction is the treatment of the pyrazolyl borate with zinc perchlorate and potassium carbonate in alcohol. The interconversion between TpCum,MeZn-OH and TpCum,MeZn-OCOOMe in methanol-containing solution can be repeatedly performed in both directions by bubbling either CO2 or N2 through the solution. The alkyl carbonate complexes show a variable sensitivity towards hydrolytic destruction with reformation of the hydroxide complexes. The complexes TptBu,MeZn-OCOOR (R = Me, Et) release CO2 under high vacuum to form the alkoxide complexes TptBu,Me-Zn-OR, which could not be obtained pure due to their extreme water sensitivity. Indirect evidence for their existence is also obtained by the reaction between TpCum,MeZn-OCOOMe and methyl iodide, forming TpCum,MeZn-I and dimethyl ether. The Zinc hydroxide complexes catalyse the formation of diethyl carbonate from ethanol and CO2.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300116
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  • 12
    Electronic Resource
    Electronic Resource
    Zinc Pyrazolylborate Complexes with Phenoxide and Alkoxide LigandsDedicated to Professor Wolfgang Beck on the occasion of his 65th birthday. (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 975-980 
    Details
    ISSN: 0009-2940
    Keywords: Zinc complexes ; Phenoxide complexes ; Alkoxide complexes ; Terminal alkoxide ligands ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The zinc hydroxide complexes Tp*Zn-OH of highly substituted pyrazolylborate ligands react with phenols, and alcohols, of sufficient acidity, in a condensation reaction with release of H2O. Starting with phenols the following were attached:phenolate, p-nitropehnolate, o-vanillinate, o-hydroxymethylphenolate, o,o-bis(hydroxymethyl) -p-methylphenolate. Whilst aliphatic alcohols and benzyl alcohol did not react, their derivatives, with highly electronegative substituents could be incorporated. Thus, the arylmethoxides OCH2C6F5 and OCH2C6H4NO2-p, as well as the alkoxides OCH2CF3 and OCH2CCl3, were attached. 2-Mercaptoethanol was bound via its thiolate function. The crystal structures of TpCum,Me ZN-OC6H4NO2-p,TpCum,Me ZN-OCH2-C6F5, TpCum,Me ZN-OCH2CF3, TpCum,Me ZN-OCH2CCl3 and TpCum,MeZn-SCH2CH2OH were determined.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300727
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  • 13
    Electronic Resource
    Electronic Resource
    Zur Kenntnis von funktionellen Si-Heterocyclen, IV. Ein Vergleich von 1H-NMR-Spektren und Bindungsfestigkeiten in cyclischen und anderen Cα-funktionellen Organosiliciumverbindungen (1963)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 96 (1963), S. 1495-1504 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die solvolytische Stabilität der Si—C-Bindung in der Gruppierung Si—CH2—X wird anhand von Kernresonanz und chemischen Methoden diskutiert. Es wird gezeigt, daß für X = S, N und O stabile Bindungen resultieren und Solvolysen im allgemeinen nur bei stark elektronegativen Gruppen am α-Kohlenstoff eintreten.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19630960604
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  • 14
    Electronic Resource
    Electronic Resource
    Abwasserreinigung durch Naßoxidation: Kosten des VerfahrensVortrag auf dem Jahrestreffen der Verfahrens-Ingenieure, 1. bis 3. Oktober 1980 in Straßburg. (1981)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 53 (1981), S. 295-295 
    Details
    ISSN: 0009-286X
    Keywords: Naßoxidation ; Zimmermann-Prozeß ; Kosten ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330530419
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  • 15
    Electronic Resource
    Electronic Resource
    Auslegung von Reaktoren zur katalytischen Abgasreinigung: Experimentelle und rechnerische UntersuchungenHerrn Professor Dr. Herbert Grünewald zum 60. Geburtstag (1981)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 53 (1981), S. 637-640 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330530812
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  • 16
    Electronic Resource
    Electronic Resource
    Monomeric and polymeric azoinitiators (1977)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 178 (1977), S. 2527-2534 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The reaction of ethylene glycol, 1,4-butanediol, 1,6-hexanediol, 3,6-dioxaoctane-1,8-diol (triethylene glycol), poly(ethylene oxide)s with M̄n = 300,1000 and 3000, or with poly(propylene oxide)s with M̄n = 425 and 2000 in excess with AIBN leads to the corresponding bis(hydroxyalkyl) 2,2′-azodiisobutyrates (1a-i). These initiators are suited to synthesize telechelics. With equimolar amounts of AIBN and 3-oxapentane-1,5-diol (diethylene glycol), poly(ethylene oxide)s with M̄n = 300, 1000 and 12000, poly(propylene oxide) with M̄n = 425, or with poly(tetrahydrofuran) with M̄n = 1000 and 2000 polymeric azoinitiators of structure 2 are formed. Blockcopolymers may be synthesized by means of these polymeric azocompounds.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1977.021780904
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  • 17
    Electronic Resource
    Electronic Resource
    Ultrastructure of the anterior salivary gland cells of the giant leech, Haementeria ghilianii (Annelida, Hirudinea) (1988)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 196 (1988), S. 321-332 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The giant anterior salivary gland cells from the large mammalian blood-sucking, glossiphoniid leech, Haementeria ghilianii, can be subdivided into three morphologically and functionally distinct regions: (1) a soma, responsible for the synthesis and storage of secretory products; (2) a long cell process, responsible for the storage and intracellular transport of the secretory vesicles; and (3) the site of exocytosis at the process terminal. The giant somata are densely packed with secretory vesicles. Deep plasmalemmal invaginations invade the soma and form an extensive system of extracellular lacunae. The rough endoplasmic reticulum (ER) and the Golgi apparatus are organized in the cell periphery, near the highly branched nucleus, and along the lacunae. The somata taper into long processes extending over several centimeters to the proboscis tip. These contain secretory vesicles through their whole length. In the process periphery, the vesicles are completely ensheathed by a concentric subplasmalemmal smooth ER cisterna. This originates deeply within the soma and extends through the whole cell process to its terminal. The ER provides support for up to several hundred longitudinally oriented microtubules. Secretion occurs at the very tip of the cell processes, each of which terminates at the proboscis tip at the base of a cuticular pore.We found synapses close to the sites of exocytosis, providing morphological evidence for neuronal control of secretion.
    Additional Material: 17 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051960305
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  • 18
    Electronic Resource
    Electronic Resource
    Korrosionsprüfung an Rohrleitungen mit ShearografieVortrag, gehalten auf dem Querschnittseminar „Korrosionsüberwachung mit ZfP“ der DGZfP, Berlin, 28.-29. November 1994. (1995)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 46 (1995), S. 410-413 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion inspection on pipelines with shearographyPipelines can be inspected quickly and reliably on inner corrosion by means of laser shearography. During pressure change in the pipe shearography measures all strain concentrations on the surface of the pipe. As corrosion leads to local wall thinnings inside the pipes these areas will expand more than non corroded areas and thus be indicated by shearography from the outside of the pipe. In this paper important features and conditions are described for application of this technique for inspection in power plants. It is reported about experience on practical inspection tasks. Latest developments enable numerical data processing and graphical and coloured data presentation for easier defect recognition.
    Notes: Mit Lasershearografie können Rohrleitungen schnell und zuverlässig auf innenliegende Korrosionsstellen und Fehler überprüft werden. Dabei werden alle Stellen an der Rohroberfläche angezeigt, die bei einer Innendruckbelastung gegenüber ihrer Umgebung erhöhte Biegedehnungswerte aufweisen. Die wichtigsten Eigenschaften und Randbedingungen für den Einsatz des Verfahrens werden dargestellt. Es wird über Erfahrungen bei praktischen Prüfeinsätzen in Kraftwerken berichtet und verschiedene Einsatzmöglichkeiten im Kraftwerksbereich werden aufgezeigt. Außerdem werden neue Entwicklungen dieser Prüftechnik vorgestellt, die eine einfachere und zuverlässigere Fehlerkennung durch numerische Datenaufbereitung und grafische und farbliche Darstellungen gewährleisten.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19950460705
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  • 19
    Electronic Resource
    Electronic Resource
    Über Dialkylamino-isocyanide (1962)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 74 (1962), S. 388-388 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19620741109
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  • 20
    Electronic Resource
    Electronic Resource
    Über Amino-isonitrile (1964)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 76 (1964), S. 580-580 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19640761341
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