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  • 1
    Electronic Resource
    Electronic Resource
    Über die toxikologischen Wirkungen des Phosgens (1910)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 23 (1910), S. 1489-1492 
    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.19100233201
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  • 2
    Electronic Resource
    Electronic Resource
    The transformation of τ particles into t4 heads. II. Transformations of the surface lattice an related observations on form determinationNumber X of the series “Studies on the morphopoieses of the head of phage T-evem.” (1974)
    New York, N.Y. : Wiley-Blackwell
    Journal of Supramolecular Structure 2 (1974), S. 253-275 
    Details
    ISSN: 0091-7419
    Keywords: Life Sciences ; Molecular Cell Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: In part I of this paper (1) we give evidence that the P23-capsoid of τ-particles is transformed in situ into the P23*-capsid of normal phage. Using the polymorphism of phage T4, we have chosen polyheads as representative of P23 assemblies and giant phages as representative of P23* assemblies in order to study their surface crystals by optical filtration of micrographs. We found for polyheads a lattice constant of 112 Å with the typical hexameric, ringlike capsomer and for the giants a lattice constant of 124 Å with quite a different capsomer morphology, of the type (6+1). From the stoichiometry of the proteins composing the normal capsid we conclude that the protomer is a single P23* molecule and that the minor capsid-proteins must be in singular positions on the surface lattice or on the polyhedral head (center of capsomers, vertices, or basal part).We extrapolate the findings on the giant head to the normal head and give a geometric model which is consistent with 1,100 molecules of P23* per capsid.We discuss the part of form inheritance contributed by P23 and the other formgiving gene products and give evidence that morphologic characters are the result of pairs of a reaction chain of interacting gene products. The example we give is the giant head produced by a ts mutant in gene 24 at 36°C.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jss.400020218
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  • 3
    Electronic Resource
    Electronic Resource
    Studien über Herstellung und Konstitution synthetischer Gerbstoffe. I. Formaldehydkondensationsprodukte der 2-Naphthol-6-sulfonsäure und 2-Naphthol-3,6-disulfonsäure (1961)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 13 (1961), S. 30-38 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der Kondensation des Natriumsalzes der 2-Naphthol-6-sulfonsäure in neutralem Medium entsteht das Dinatriumsalz der 2,2′-Dihydroxy-1,1′-dinaphthylmethan-6,6′-disulfonsäure. Durch Ringschluß bildet sich hieraus das Dinatriumsalz der entsprechenden Dinaphthopyrandisulfonsäure, das durch Oxydation in das innere Pyryliumsalz überführt wird. Die beiden pyranoiden Verbindungen sind Bestandteile des synthetischen „Gerbstoffes QE“. Bei der Kondensation des Dinatriumsalzes der 2-Naphthol-3,6-disulfonsäure entsteht das Tetranatriumsalz der 2,2′-Dihydroxy-1,1′-dinaphthylmethan-3,3′,-6,6′-tetrasulfonsäure.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19610130103
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  • 4
    Electronic Resource
    Electronic Resource
    Studien über Herstellung und Konstitution synthetischer Gerbstoffe. III. Formaldehydkondensationsprodukte von 2-Naphthol mit 2-Naphthol-6-sulfonsäure und 2-Naphthol-3,6-disulfonsäure (1962)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 16 (1962), S. 196-200 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Reindarstellung von Formaldehydkondensationsprodukten des 2-Naphthols mit 2-Naphthol-6-sulfonsäure bzw. 2-Naphthol-3,6-disulfonsäure wird beschrieben. Es wird die für das Gerbvermögen wichtige Feststellung getroffen, daß diese Verbindungen im Gegensatz zu Eigenkondensationsprodukten der Sulfonsäuren in wäßriger Lösung aggregieren.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19620160313
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  • 5
    Electronic Resource
    Electronic Resource
    Ueber das Lebendiggebären des Blutegels (1834)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 11 (1834), S. 66-68 
    Details
    ISSN: 0365-5490
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.18340110113
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  • 6
    Electronic Resource
    Electronic Resource
    Studien über Rhodium (1909)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 42 (1909), S. 2205-2207 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.190904202112
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  • 7
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    The MetaCyc database of metabolic pathways and enzymes and the BioCyc collection of pathway/genome databases (2016)
    Oxford University Press
    Details
    Publication Date: 2016-01-07
    Description: The MetaCyc database ( MetaCyc.org ) is a freely accessible comprehensive database describing metabolic pathways and enzymes from all domains of life. The majority of MetaCyc pathways are small-molecule metabolic pathways that have been experimentally determined. MetaCyc contains more than 2400 pathways derived from 〉46 000 publications, and is the largest curated collection of metabolic pathways. BioCyc ( BioCyc.org ) is a collection of 5700 organism-specific Pathway/Genome Databases (PGDBs), each containing the full genome and predicted metabolic network of one organism, including metabolites, enzymes, reactions, metabolic pathways, predicted operons, transport systems, and pathway-hole fillers. The BioCyc website offers a variety of tools for querying and analyzing PGDBs, including Omics Viewers and tools for comparative analysis. This article provides an update of new developments in MetaCyc and BioCyc during the last two years, including addition of Gibbs free energy values for compounds and reactions; redesign of the primary gene/protein page; addition of a tool for creating diagrams containing multiple linked pathways; several new search capabilities, including searching for genes based on sequence patterns, searching for databases based on an organism's phenotypes, and a cross-organism search; and a metabolite identifier translation service.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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  • 8
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    Estimation of Thermodynamic Properties of Polysaccharides (2011)
    Wiley
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    Publication Date: 2011-06-01
    Description: Polysaccharides are the most important components of herbal biomass with a high application potential. Their thermochemical characteristics, however, have been little studied. In the present paper, an effective thermodynamic analysis was carried out with the aim of setting a method for reasonably estimating the thermochemical properties of polysaccharides such as cellulose. The properties of formation and heat capacities were estimated by general thermodynamic methods like group contribution methods as well as methods followed from synthetic polymer studies. The results were compared with those obtained by empirical correlations derived from the data for short chain carbohydrates, the only literature data available for validation. The properties were determined depending on the degree of polymerization and temperature. Convenient thermodynamic methods for the estimation of thermochemical properties were analyzed with the objective of specifying those that could provide reasonable values for the homologous series of carbohydrates. The properties were determined as a function of temperature and carbo-hydrate chain length. These allow the prediction of formation properties of polysaccharides such as cellulose.
    Print ISSN: 0930-7516
    Electronic ISSN: 1521-4125
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Published by Wiley
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  • 9
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    A Priori Property Estimation of Physical and Reactive CO2 Absorbents (2011)
    Wiley
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    Publication Date: 2011-11-15
    Description: The physical as well as the chemical solubility of carbon dioxide in several ionic liquids were predicted with quantum chemical a priori methods. The physical solubility was described with the model COSMO-RS. The results were compared to experimental data. Both a qualitative and – based on the concept of relative solubility – quantitative benchmark for the solvents were possible. For the part of chemical absorption, the free reaction enthalpy, Δ R g , and reaction enthalpy, Δ R h , were determined with DFT calculations on the B3LYP/def2-TZVPP level. By combining reaction and phase equilibrium, the CO 2 loading of the reactive solvents were predicted. The results were validated with literature data. An approach was developed for a quantitative a priori description of both physical and chemical solvation of CO 2 . A new approach is presented for the a priori screening of physical and reacting absorbents for CO 2 . Predictions of physical solubility are made using COSMO-RS. For the description of the chemical reaction, the chemical and phase equilibrium are simultaneously solved by combining quantum chemical calculations on the DFT level with a model for the phase equilibrium.
    Print ISSN: 0930-7516
    Electronic ISSN: 1521-4125
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Published by Wiley
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  • 10
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    Hydration of Saccharides: Estimation of Reaction Properties and Equilibrium Conversion (2012)
    Wiley
    Details
    Publication Date: 2012-02-24
    Description: Biomass holds great promise as a renewable source of hydrogen and thus as a zero-emission, carbon-neutral, and nearly inexhaustible energy resource. Thermodynamic analysis of biomass hydration is carried out to study the reaction properties considering a series of saccharides as a model. Equilibrium constants and composition are estimated in dependence on the saccharide chain length and temperature. The latter is also studied as a function of the reactant ratios and in the presence of nonreacting additives. Being highly endothermic, the reaction is thermodynamically favorable due to a high entropic contribution. Increase in the saccharide chain length affects the conversion only slightly, so the results for low-molecular-weight saccharides can be transferred to long-chain ones. The hydration of oligosaccharides to hydrogen is evaluated from the equilibrium thermodynamics viewpoint. The reaction is thermodynamically favorable even at mild conditions and is entropically driven. With increasing oligosaccharide chain length, the conversion remains nearly constant. Therefore, results for short chain saccharides can also be applied to long chain sugars such as cellulose.
    Print ISSN: 0930-7516
    Electronic ISSN: 1521-4125
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Published by Wiley
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