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  • 1
    Electronic Resource
    Electronic Resource
    Thermal studies on metal complexes of 5-nitrosopyrimidine derivatives (1986)
    Springer
    Journal of thermal analysis and calorimetry 31 (1986), S. 573-580 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die folgenden Komplexe von Zn(II), Cd(II), Hg(II) und Hg(I) mit 4-Amino-1,6-dihydro-2-methylthio-5-nitroso-6-oxopyrimidin (MTH) wurden dargestellt und hinsichtlich ihres thermischen Verhaltens durch TG und DSC untersucht: Zn(MT)2 · 3H2O, Cd(MT)·H2O, Cd(MTH)Cl2, Hg(MTH)Cl2 und Hg2(MTH)(NO3). Die Werte der Enthalpie der Dehydratisierung und Dehalogenisierung wurden berechnet.
    Abstract: Резюме Получены комплексы с остава Zn(MT)2·ЗН2О, Cd(MT)2·H2O, Cd(MTH)Cl2, Hg(MTH)Cl2 и Hg2(MT)NO3, где МТН — 4-амино-1,6-дигидро-2-метил тио-5-нитрозо-6-оксопири мидин. Термическое поведен ие комплексов изучено методами ТГ и ДСК. Вычислены энтальпии реакций де гидратации и дегалог енирования.
    Notes: Abstract The following Zn(II), Cd(II), Hg(II) and Hg(I) complexes of 4-amino-1,6-dihydro-2-methylthio-5-nitroso-6-oxopyrimidine (MTH) have been prepared and their thermal behaviour studied by TG and DSC techniques: Zn(MT)2·3H2O, Cd(MT)·H2O. Cd(MTH)Cl2, Hg(MTH)Cl2 and Hg2(MT)(NO3). The dehydration and dehalogenation enthalpy values were calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01914234
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  • 2
    Electronic Resource
    Electronic Resource
    Thermal studies on metal complexes of 5-Nitrosopyrimidine derivatives (1986)
    Springer
    Journal of thermal analysis and calorimetry 31 (1986), S. 361-367 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Neue 4-Amino-5-nitroso-6-oxo-1,2,3,6-tetrahydro-2-thiopyrimidin-Komplexe (TANH) von Zn(II), Cd(II), Hg(II) und Hg(I) wurden dargestellt und ihr thermisches Verhalten mittels TG und DSC untersucht. Die Dehydratisierungs- und Deamminierungsenthalpien der Komplexe wurden berechnet.
    Abstract: Резюме С помощью методов ТГ и ДСК изучено термичес кое поведение новых комп лексов 4-амино-5-нитрозо-6-оксо-1,2,3,6-тетрагидро-2-ти опиримидина с цинком, кадмием, однов алентной и двухвалентной ртут ью. Вычислены энтальп ии реакций дегидратаци и и деамминирования.
    Notes: Abstract New 4-amino-5-nitroso-6-oxo-1,2,3,6-tetrahyaro-2-thiopyrimidine (TANH) complexes of Zn(II), Cd(II), Hg(II) and Hg(I) were prepared and their thermal behaviour was studied by TG and DSC techniques. The dehydration and deamination enthalpies of the corresponding complexes were calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01911068
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  • 3
    Electronic Resource
    Electronic Resource
    Compression creep of molten poly (butylene terephthalate) (1988)
    Springer
    Rheologica acta 27 (1988), S. 634-638 
    Details
    ISSN: 1435-1528
    Keywords: Compressioncreep ; compression creepcompliance ; volumeviscosity ; poly(butylene terephthalate)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract Viscoelastic parameters of poly(butylene terephthalate) melt in compression creep have been measured in an Instron Capillary Rheometer. Bulk compression creep complianceB(t) shows plateau regions in the molten state and in the melt crystallized state, both decreasing with increasing stress. Shifting ofB(t) curves provides master curves suitable for analyzing the total (superposed elastic and viscous) bulk compression behavior. Volume viscosity decreases with both increasing stresses and compression rates but seems to be independent of temperature. Its values are larger than those from constant compression rate experiments, possibly due to the presence of elastic effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01337459
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  • 4
    Electronic Resource
    Electronic Resource
    Crystal and molecular structure of acanthothamine monohydrate-methanol: A new alkaloid from Acanthothamnus aphyllus (1986)
    Springer
    Journal of chemical crystallography 16 (1986), S. 507-517 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract C34H43O16N·CH3OH·H2O is monoclinic,C 2 2 -P21. Unit cell dimensions at 293 K area=9.159(3),b=17.017(5),c=13.675(5) Å,β=109.49(2)°,V=2009(1) Å3,D c =1.28 g cm−3, andZ=2. The structure has been determined from single-crystal data collected with a four-circle diffractometer and refined from 2367 reflections down toR=0.064 andωR=0.082. The structural features determined from chemical and spectroscopic studies are confirmed and extended. The absolute configuration was determined by comparison with known absolute stereochemistry of the bromoacetylneoevonine monohydrate. The acanthothamine molecule is an evonine and neoevonine analogue showing an epimeric configuration at C(17) of the evoninic acid residue. The A and B rings adopt chair conformations. The C ring has a half-chair conformation. The crystal structure is stabilized by a three-dimensional network of hydrogen bonds and a number of intramolecular C-H⋯O and C-H⋯N interactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01161039
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  • 5
    Electronic Resource
    Electronic Resource
    Can presentF 2 andR=σ L /σ T data unravel power corrections? (1988)
    Springer
    The European physical journal 40 (1988), S. 613-618 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We analyse the QCD non-singlet leading order prediction ofR=σ L /σ L using the results of the EMCF 2 fits to proton, deuterium and iron data and we examine in detail its compatibility withR from SLAC. Least squares fits to combined EMC and SLACF 2 andR proton data are carried out at leading order in the non-singlet case. Incompatibilities have been confirmed which, in spite of present uncertainties, require the consideration of power corrections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01560233
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  • 6
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1988)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 39 (1988), S. 597-604 
    Details
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00948968
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  • 7
    Electronic Resource
    Electronic Resource
    Characterization of supported platinum by a probe reaction (1988)
    Springer
    Catalysis letters 1 (1988), S. 283-291 
    Details
    ISSN: 1572-879X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A probe reaction is proposed to measure the number of active hydrogen atoms on platinum supported catalysts. Adsorbed hydrogen is titrated by ethylene pulses. The reaction product, ethane, desorbs quantitatively and can be measured directly by gas chromatography. This determination yields the total number of active hydrogen atoms per Pt atom (NAH). The method was tested on a set of Pt/Al2O3 catalysts. The results show that NAH can exceed several times the number of metal atoms on the catalyst and increases with the time of catalyst treatment with hydrogen at high temperature. The turnover rate for ethylene hydrogenation is constant when referred to NAH, but not when referred to the percentage of exposed metal atoms, as determined by conventional methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00765308
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  • 8
    Electronic Resource
    Electronic Resource
    Extraction-spectrophotometric determination of iron with 2-(2′-benzothiazolylazo)-4,6-dimethylphenol (1986)
    Springer
    Microchimica acta 88 (1986), S. 183-190 
    Details
    ISSN: 1436-5073
    Keywords: iron ; extraction-spectrophotometric determination ; 2-(2′-benzothiazolylazo)-4,6-dimethylphenol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract An extraction-spectrophotometric method for the determination of trace amounts of iron based on its extraction into chloroform with 2-(2′-benzothiazolylazo)-4,6-dimethylphenol (BTADMP) from a pH 6.5 medium has been developed. The extracted 1∶2 Fe∶BTADMP complex species allow the determination of 4–30gmg of iron (ε=3.92×1041·mol−1·cm−1 at 790 nm). The method is highly selective and has been applied to the determination of iron in polymineral-polyvitamin pharmaceutical products.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01196610
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  • 9
    Electronic Resource
    Electronic Resource
    Pd(II) and Au(III) complexes of some 4-glycopyranosylamino-5-nitroso-6-oxo-pyrimidine derivatives (1986)
    Springer
    Monatshefte für Chemie 117 (1986), S. 905-920 
    Details
    ISSN: 1434-4475
    Keywords: Pd(II) complexes ; Au(III) complexes ; 1H-NMR ; Thermal studies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Sechs Pd(II)- und Au(III)-Komplexe mit 4-Glycopyranosylamino-5-nitroso-6-oxo-pyrimidin-Derivaten wurden hergestellt. Auf der Basis ihrer1H-NMR und IR-Spektren wurde herausgefunden, daß die Substituenten 5-nitroso und 6-oxo die Koordinationsstellen sind. Das thermische Verhalten der Komplexe wurde ebenfalls untersucht.
    Notes: Abstract Six Pd(II) and Au(III) complexes of 4-glycopyranosylamino-5-nitroso-6-oxo-pyrimidine derivatives were prepared. On the basis of their1H-NMR and IR spectra, it has been found that the coordination sites are the 5-nitroso and the 6-oxo substituents. Likewise, the thermal behaviour of the complexes has also been studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00811260
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  • 10
    Electronic Resource
    Electronic Resource
    The equation s=(x2 y 2)3 y 2 is solvable in the symmetric group onZ (1986)
    Springer
    Algebra universalis 22 (1986), S. 159-163 
    Details
    ISSN: 1420-8911
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The main purpose of this paper is to give a solution for the equation s=(x2y2)3y2 in the symmetric group on the set Z of all integer numbers, where s denotes the successor permutation i→i + l of Z.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01224022
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