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  • 1980-1984  (11)
  • 1984  (11)
  • 1
    Online Resource
    Online Resource
    Amsterdam :Elsevier Science & Technology,
    Keywords: Sulfur. ; Electronic books.
    Description / Table of Contents: Sulfur: Its Significance for Chemistry, for the Geo-, Bio- and Cosmosphere and Technology focuses on the significance of sulfur for chemistry, geosphere, biosphere, cosmosphere, and technology. Topics covered range from the geochemistry and natural cycle of sulfur to the role of sulfur in "black powder". Organometallic sulfur compounds, thiolates, and the spectroscopic effects of sulfur chemistry are also discussed. Comprised of 21 chapters, this volume begins with an introduction to elemental sulfur and related homocyclic compounds and ions, focusing on their preparation, molecular and crystal structures, molecular spectra, and thermodynamic properties. Subsequent chapters deal with the origin and natural cycle of sulfur in the earth's crust; the role of sulfur in the reactions of exploding gunpowder; the use of sulfur in artwork; and developments in the field of organic sulfur chemistry. The catalytic properties of metal complexes of sulfur and sulfur-nitrogen compounds are also examined, along with the synthetic aspects of sulfido-complexes of molybdenum and tungsten. The final section is devoted to the role of sulfur in microbiology, biochemistry, and medicine. This monograph will be useful to students, practitioners, and researchers in the field of inorganic chemistry, as well as those who are interested in sulfur and its compounds.
    Type of Medium: Online Resource
    Pages: 1 online resource (526 pages)
    Edition: 1st ed.
    ISBN: 9781483289892
    Series Statement: Issn Series ; v.Volume 5
    DDC: 546/.723
    Language: English
    Note: Front Cover -- Sulfer: Its Significance for Chemistry, for the Geo-, Bio- and Cosmosphere and Technology -- Copyright Page -- Table of Contets -- Preface -- Contributors -- PART I: SULFUR: THE ELEMENT, ITS GEOCHEMISTRY AND SOME ASPECTS OF ITS HISTORY -- CHAPTER 1. ELEMENTAL SULFUR AND RELATED HOMOCYCLIC COMPOUNDS AND IONS -- 1 . Introduction -- 2. Elemental Sulfur (Neutral Rings Sn) -- 3. Homocyclic Sulfur Cations -- 4. Homocyclic Sulfur Oxides -- 5. Homocyclic Sulfur Halide Cations -- References -- CHAPTER 2. SULFUR IN THE EARTH'S CRUST, ITS ORIGIN AND NATURAL CYCLE -- 1. Cosmic and Terrestrial Abundance of Sulfur -- 2. Sulfur Cycle in the Continental Crust -- 3. Sulfur Cycle in the Oceanic Crust -- 4. Isotopic Composition of Natural Sulfur -- 5. Sulfur in the Water Cycle at the Earth's Surface -- References -- CHAPTER 3. SULFUR IN HISTORY: THE ROLE OF SULFUR IN "BLACK POWDER -- 1. Gunpowder - A Chinese Invention? -- 2. Technology of Black Powder in the European Middle Ages -- 3. The Composition of Black Powder and the Reaction of Its Components -- 4. The Role of Sulfur in Black Powder -- References -- CHAPTER 4. SULFUR IN ARTWORK: LAPIS LAZULI AND ULTRAMARINE PIGMENTS -- 1 . A Five-Thousand Years Old Pigment -- 2. The Synthesis of Ultramarine -- 3. Structure Analysis of Lapis Lazuli and of the Ultramarine Pigments -- 4. Blue Sulfur? -- 5. The Chromophores in Ultramarine-Yellow, -Green, -Violet and -Red -- 6. Chemical Behaviour of the Sulfur Species in Lapis Lazuli and in the Ultramarine Pigments -- 7. Concluding Remarks -- Acknowledgements -- References -- PART II: CHEMISTRY -- CHAPTER 5. NEW DEVELOPMENTS IN THE FIELD OF ORGANIC SULFUR CHEMISTRY -- 1 . Introduction -- 2. New Structures and New Methods for Understanding Structures -- 3. New Ideas on and New Applications of Reactions of Organosulfur Compounds. , 4. Sulfur-Containing Natural Products and Biologically Active Sulfur Compounds -- References -- CHAPTER 6. ORGANOMETALLIC SULFUR COMPOUNDS -- 1 . Introduction -- 2. Structural Types -- 3. Stabilisation Principles and Synthetic Approaches -- 4. Reactivity of M-SH Complexes -- 5. The M3S Electron Reservoir -- 6. Framework Reactions of Sulfur Bridged Organometallic Clusters -- Acknowledgements -- References -- CHAPTER 7. THIOLATES - INTRIGUING AND VERSATILE LIGANDS FOR TRANSITION METALS -- 1 . Introduction -- 2. Mononuclear Complexes with Monodentate Thiols -- 3. Polynuclear Thiolato-Complexes -- 4. Sulfide Formation by C-S Bond Cleavage -- 5. Polydentate Thiolato-Ligands -- Sulfur-Sulfur Interactions -- 6. Redox Reactions and the Electrochemistry of Thiolato-Complexes -- 7. Sterically Hindered Thiolato-Ligands -- 8. Conclusion -- References -- CHAPTER 8. METAL COMPLEXES OF SULFUR AND SULFUR-NITROGEN COMPOUNDS AND THEIR CATALYTIC PROPERTIES -- 1 . Introduction -- 2. Elemental Sulfur as a Ligand -- 3. Complexes with (CH2S)3, (CH2Se)3 and (CH20)6 -- 4. Sulfur-Nitrogen Species as Ligands -- 5. Metal-Catalyzed Formation of S(CN)4 -- Acknowledgements -- References -- CHAPTER 9. SULFIDO-COMPLEXES OF MOLYBDENUM AND TUNGSTEN: SYNTHETIC ASPECTS -- 1 . Introduction -- 2. Simple Thiometallate Anions and Their Reactions -- 3. Thiometallates as Ligands -- 4. Reactions of Thiometallates in the Presence of Thiolates -- 5. Mononuclear Complexes -- References -- CHAPTER 10. INTERACTION BETWEEN METAL CENTERS THROUGH SULFUR CONTAINING LIGANDS -- 1 . Introduction -- 2. Theoretical Background -- 3. Large Interaction between Copper(II) Ions Far Away from Each Other -- 4. Dithiooxamidato Copper(II) Dinuclear Complexes -- 5. Ab Initio Calculation of the Exchange Interaction in Dithiooxamide Complexes -- 6. Ordered Bimetallic Chains with Dithiooxalato Bridges. , 7. Magnetic Properties of Iron-Sulfur Complexes -- 8. Conclusion -- References -- CHAPTER 11. SPECTROSCOPIC ASPECTS OF SULFUR CHEMISTRY: ELECTRONIC AND RESONANCE RAMAN SPECTROSCOPY OF SULFUR-CONTAINING COMPLEXES, IONS AND RADICALS -- 1 . Introduction -- 2. Transition Metal Thiometal1ates -- 3. Electronic and RR Spectra of Sulfur-Donor Complexes -- 4. Spectroscopic Studies on Cations -- 5. Spectroscopic Studies on Sulfur Radical Anions -- 6. Conclusion -- References -- PART III: TECHNOLOGY AND CHEMISTRY WITH TECHNOLOGICAL RELEVANCE -- CHAPTER 12. SULFURIC ACID - AN IMPORTANT BASIC PRODUCT IN CHEMISTRY. PROBLEMS AND RECENT DEVELOPMENTS IN PRODUCTION -- 1 . Introduction -- 2. Acid Manufacture and Reduction of Emissions -- 3. Raw Materials -- 4. Energy Recovery -- 5. Recycling of Spent Acids and By-Products -- CHAPTER 13. CHEMICAL PROBLEMS OF FLUE-GAS DESULFURISATION -- 1. Introduction -- 2. Chemistry of Sulfur -- 3. The Problem of Changing Oxidation States of Sulfur -- 4. Proposal for a Sulfur Producing Desulfurisation Process -- References -- CHAPTER 14. METAL SULFIDES IN PHOTOVOLTAIC, PHOTOELECTROCHEMICAL AND SOLAR BIOLOGICAL ENERGY CONVERSION -- 1. Introduction -- 2. Sulfur Compounds as Solar Energy Materials -- 3. Photovoltaic Cells Based on Sulfides -- 4. Photoelectrochemical Cells Based on Sulfides -- 5. Solar Assisted Electrolysis of Water -- 6. Photocatalysis and Solar Intercalation Chemistry -- 7. Solar Biomass Based on Sulfur Cycle -- 8. Stability and Reactivity of Sulfide Materials -- 9. Conclusion -- References -- CHAPTER 15. INORGANIC CHEMISTRY RELATED TO RUBBER VULCANISATION -- 1 . Introduction -- 2. Mechanism of Sulfur Vulcanisation -- CHAPTER 16. BIODEGRADATION OF SULFUR MINERALS AND ITS APPLICATION FOR METAL RECOVERY -- 1 . Introduction -- 2. Microorganisms -- 3. Leaching Machanisms -- 4. Factors Influencing Bacterial Leaching Activity. , 5. Leaching Techniques -- 6. Conclusion -- References -- PART IV. SULFUR IN MICROBIOLOGY, BIOCHEMISTRY AND MEDICINE -- CHAPTER 17. MICROORGANISMS AND THE SULFUR CYCLE -- 1. Introduction -- 2. The Biogeochemical Sulfur Cycle -- 3. The Metabolic Types and Microbial Groups Involved in the Cycle -- 4. The Sulfuretum -- 5. Fractionation of Sulfur Isotopes by Bacteria -- References -- CHAPTER 18. PHOTOTROPHIC BACTERIA AND THEIR SULFUR METABOLISM -- 1 . Introduction -- 2. Carbon and Nitrogen Metabolism -- 3. Ecology and Technical Application -- 4. Photosynthesis -- 5. Sulfur Metabolism -- References -- Chapter 19. CYTOCHROMES AND IRON SULFUR PROTEINS IN SULFUR METABOLISM OF PHOTOTROPHIC SULFUR BACTERIA -- 1 . Introduction -- 2. Definition of Electron Transfer Proteins -- 3. Enzymatic Steps of Dissimilatory Sulfur Metabolism -- 4. Summary and Conclusion -- References -- CHAPTER 20. SULFIDE AND OTHER SULFUR-CONTAINING LIGANDS IN METALLOPROTEINS AND ENZYMES -- 1. Introduction -- 2. Natural Sulfur-Containing Ligands -- 3. Metalloproteins Containing No Sulfide Ligands -- 4. Metalloproteins with Sulfide Ligands -- References -- CHAPTER 21. GENETIC DISEASES OF SULFUR METABOLISM IN HUMANS -- 1. Introduction -- 2. Cystathionine β-Synthase Deficiency -- References -- AUTHOR INDEX -- SUBJECT INDEX.
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  • 2
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The production of neutral pions in nucleus nucleus collisions with 44 MeV/u Ar projectiles from the accelerator GANIL has been observed. The angular distributions indicate a collective production process, and the pion spectra reflect properties of the collision dynamics.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 318 (1984), S. 125-129 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The collinear laser-ion beam technique has been used to measure the isotope shift and hyperfine structure in the 6s-6p doublet (4,934Å, 4,554Å) of Ba II for all seven stable isotopes. The influence of the excited2 P 1/2 and2 P 3/2 states on the field shift leads to a difference of 2.5(3)% in the electronicF factors. The specific mass shifts differ by {A′-A} 2.2(3) MHz which corresponds to about 12% of the normal mass shift.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 57 (1984), S. 161-173 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The eigenmodes and characteristic frequencies of surface deformations of real fluids in the geometry of a cylindrical jet, which is homogeneously charged, are calculated using the linearized Navier-Stokes equation with free surface boundary conditions. A stability phase diagram in the wavenumber-fissility plane is given. Two types of instabilities are described, surface tension and Coulomb force induced. The known modes for ideal potential flow are extended to arbitrary viscosity. In addition new types of modes are described (eigenfunctions and decay rates) which represent rotational flow and have no correspondence to Rayleigh's jet instability.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1440
    Keywords: Digitalis ; testosterone ; estradiol ; cortisol ; cardiac index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Digoxin was studied to see whether it impairs adrenal function and feminizes male subjects by changing plasma sexual hormones; both have been reported on previously. In eight healthy male subjects neither estrone (38.7±7.7 vs 35.4±3.2 pg/ml) nor estradiol (35.8±6.4 vs 32.2±3.9 pg/ml) nor testosterone (6.32±0.74 vs 6.45±0.73 ng/ml) were found to be altered by digoxin administration (plasma levels 1.55±0.27 ng/ml) lasting 35 days. The same was true of free testosterone (147±24 vs 142±19 pg/ml) and free estradiol (657±77 vs 615±78 fg/ml). Even maximal stimulation of the adrenal and gonadal glands by adrenocorticotropic hormone (ACTH) and human chorionic gonadotropin (hCG) did not exhibit any digoxin-induced alterations in the synthesizing capacity of steroid hormones, as shown by plasma cortisol (increase from 128±18 to 389±18 ng/ml) and testosterone (from 5.96±0.90 to 10.33±1.19 ng/ml). Furthermore, seven subjects on digoxin were observed over a period of 150–210 days; they did not show any increase of estrogens. This was also found in three subjects when estrogen levels were elevated initially due to extreme obesity. Also, 35 patients who took β-methyldigoxin (n=8), β-acetyldigoxin (n=20) and digitoxin (n=7) from 1 to 9 (x:1.9) years demonstrated normal plasma concentrations of gonadal and adrenal steroids, irrespective of duration of application or the digitalis compound. However, our studies showed that sexual hormones are correlated to cardiac performance: with decreasing cardiac index, testosterone (r: 0.86;P〈0.01) and estradiol (r: 0.68;P〈0.05) decreased significantly. We conclude that digoxin does not exert any influence on plasma sexual steroids. Since no competition between digoxin and estradiol receptors was found, it may even be the digitalis compound of choice when feminization is expected due to other complications. Furthermore, on digoxin the adrenal gland is capable of synthesizing cortisol sufficiently.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 326 (1984), S. 364-367 
    ISSN: 1432-1912
    Keywords: Islets of Langerhans ; cAMP ; Forskolin ; Insulin secretion ; Glucose tolerance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The in vivo effect of forskolin on insulin release, blood glucose and intravenous glucose tolerance test has been studied in the rat. In addition in vitro experiments on the effect of forskolin on islet cAMP and insulin release have been performed for comparison purposes. In batch incubated islets forskolin increased cAMP levels concentration dependently, the EC50 being approximately 25 μM. The maximal effect occurred after 5 min. In the presence of 2.8 mM glucose 10μM forskolin did not stimulate insulin release; however, it potentiated both phase of 11.1 mM glucose induced insulin secretion. I. v. administration of 1.5 mg/kg of forskolin increased blood glocose levels in rats, which was associated with significant elevation of serum insulin. During an i. v. glucose tolerance test forskolin potentiated the insulin releasing capacity of glucose but did not significantly affect blood glucose levels. It is conceivable that cAMP per se does not initiate but rather amplifies insulin release by glucose. Since the synergistic effect of forskolin and glucose on insulin release in vivo is not associated with increased elimination rate it is possible that forskolin exhibits additional effects which counteract the glucose lowering action of insulin.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 71 (1984), S. 420-421 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 9
  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 508 (1984), S. 107-114 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: I.R. Spectroscopic Investigations on N-Alkylidene-alkylamines and N-(Trimethylsilylethylidene)-alkylaminesThe position of the C=N-stretching vibration of N-Alkylidene-alkylamines and N-(Trimethylsilylethylidene)-alkylamines in carbon tetrachloride has been determined. The relative basicity has been measured for this compounds by means of the vC-D band shift of CDCl3 associated to the azomethine. The data are discussed with respect to the specific influence of the trimethylsilyl group.
    Notes: Die Bandenlage der C=N-Valenzschwingung von N-Alkyliden-alkylaminen und N-(Trimethylsilylethyliden)-alkylaminen Me3SiCRR′CH=NR″ in Tetrachlorkohlenstoff wurde bestimmt. Die relative Basizität für diese Verbindungen wurde gemessen an der Bandenverschiebung Δv∼ der vC-D-Bande des CDCl3 bei Assoziation an das Azomethin. Die Daten werden unter dem Aspekt des spezifischen Einflusses der Trimethylsilylgruppe diskutiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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