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  • Wiley-Blackwell  (37)
  • Oxford University Press  (11)
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  • 1
    Electronic Resource
    Electronic Resource
    An experimental-numerical hybrid technique for three dimensional stress analysis (1977)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 11 (1977), S. 1845-1863 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The paper describes a numerical method for determining the stress distribution in the interior of a three-dimensional body using experimentally determined surface stresses, and the interior displacements from surface displacements. The normal and shear stresses inside the body are obtained by solving Laplace's equation in terms of sum of normal stresses together with the three-dimensional compatibility equations in terms of stresses, using the finite difference technique, when the stresses on the surface of the body are known. On the other hand if surface displacements are known (from which strain components could be determined) then displacement components in the interior of a body can be determined by solving Laplace's equation in terms of sum of normal strains together with the three-dimensional equilibrium equations in terms of displacements. It is shown that axi-symmetric problems can also be solved in an identical way by transforming the equations into cylindrical co-ordinates. The application of the method has been illustrated through several examples.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620111208
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  • 2
    Electronic Resource
    Electronic Resource
    High-pressure particulate expansion and minimum bubbling of fine carbon powders (1987)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 33 (1987), S. 1698-1706 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Particulate expansion and minimum bubbling parameters (n, u′t, umB, εmB) are measured for fine carbon powders (dp = 44 and 112 μm) fluidized with synthesis gas (H2/CO = 0.8) at pressures within the range 2,070 〈 P 〈 12,420 kPa in an industrial, pilot-scale fluidized bed. Deviations between minimum bubbling (umB and εmB) and minimum fluidization (umf and εmf) conditions increase with increasing pressure, P. The expansion index, n, decreases with increasing P and always exceeds values recommended by Richardson and Zaki for solid/liquid systems. Particulate bed expansion for the fine powders is well characterized by the equations of Foscolo et al. and Abrahamsen and Geldart. The theory of Foscolo and Gibilaro adequately estimates the onset of bubbling for both powders at all P, provided that experimentally determined values of n and u′t, are applied. For the dp = 112 μm powder, the theory of Foscolo and Gibilaro is applicable with calculated values of ut and experimental values of n.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690331013
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  • 3
    Electronic Resource
    Electronic Resource
    Rapid and simple direct determination of porphyrins in urine by ion-pair reversed-phase high performance liquid chromatography (1980)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 3 (1980), S. 85-86 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Ion-pair reversed-phase ; Free porphyrin carboxylic acids in urine, complete separation ; Quantitation within 4.4-5.4% precision ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240030206
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  • 4
    Electronic Resource
    Electronic Resource
    Von der Quadratsäure abgeleitete Cyclotrimethinfarbstoffe (1965)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 77 (1965), S. 680-681 
    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.19650771509
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  • 5
    Electronic Resource
    Electronic Resource
    Steroid phosphorus compounds. V - mass spectrometry of phosphinic esters of monohydroxy steroidsAbbreviations: E1 = estrone; A = androsterone; 3αEt = 3α-etiocholanolone; 3βEt = 3β-etiocholanolone; DHEA = dehydroepiandrosterone; DHT = 5α-dihydrotestosterone: T = testosterone: PO, PS and P = the dimethylphosphinic, dimethylthiophosphinic and dimethylphosphinous ester groups of the corresponding hydroxy steroid, respectively. (1976)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 3 (1976), S. 64-70 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mass spectra of the dimethylphosphinic, dimethylthiophosphinic and dimethylphosphinous ester derivatives of several monohydroxy steroids are reported. The fragmentations of the derivatized steroids largely depend on the nature of the the phosphorus-containing ester group. Phenolic ester derivatives exhibit the base peak at the molecular ion, whereas the spectra of the secondary phosphinic esters are dominated by very intense protonated phosphinic acid ions [Me2 P(XH)(OH)]+ at m/e 95 (X = O) or at m/e 111 (X = S). The present results also indicate the low ionization potential for the phosphinic ester group. Due to their good gas chromatographic properties, these steroid derivatives appear to be particularly suitable for gas chromatographic mass spectrometric analysis of biochemical materials.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200030205
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  • 6
    Electronic Resource
    Electronic Resource
    Selected ion monitoring determination of mono- and bifunctional amines by using phosphorus-containing derivativesPresented in parts at the 17th International Symposium on ‘Advances in Chromatography’, Las Vegas, Nevada, USA (1982). (1983)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 10 (1983), S. 175-182 
    Details
    ISSN: 0306-042X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Numerous monofunctional amines have been reacted with dimethylthiophosphinic chloride to form stable derivatives. Their good gas chromatographic properties and abundant molecular ions afforded highly sensitive and specific detection by selected ion monitoring (SIM) down to the picogram level. Based upon this derivatization procedure, new methods for the determination of aniline in serum and urine by SIM were developed. The minimum detectable concentration of aniline was 500 pg ml-1. Linear response curves were obtained from 1.5 to 150 ng ml-1 using (2H5)aniline as the internal standard. Specific derivatization of a series of bifunctional amines was achieved with methyldichlorophosphine and sulfur resulting in the formation of stable phospholidine-thiones. These derivatives chromatograph well on nonpolar stationary phases, and their mass spectra exhibit abundant molecular ions. This derivatization reaction was applied to the quantification of ephedrine from urine and serum by SIM with (2H2)ephedrine as the internal standard. The detection limit of the method was 1 ng ml-1. The linearity was established in the range from 10 to 160 ng ml-1.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200100312
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  • 7
    Electronic Resource
    Electronic Resource
    Zur Kenntnis von Tribenzylzinn- und TribenzyltitancyclopentadienylProfessor Karl-Heinz Thiele zum 60. Geburtstage am 9. März 1990 gewidmet (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 581 (1990), S. 33-40 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: About Tribenzyltin- and TribenzyltitaniumcyclopentadienylThe organocerium(III) compound Na(THF)[(π-C5H5)3Ce(σ-C5H5)] (I) reacts with (C6H5CH2)3SnCl and (C6H5CH2)3TiCl after a SN-reaction under separation of Nacl and (C5H5)3Ce to tribenzyltin- resp.-titaniumcyclopentadienyl (C6H5CH2)3MC5H5 [M = Sn, (II); Ti, (III)]. A special characterization of II and III was carried out by their elementary analysis, I.R. spectroscopy and 1H, 13C, and 119Sn N.M.R. spectroscopy. These results allow the statement that II and III are better to be described by the formulae (C6H5CH2)3Sn(σ-C5H5) and (C6H5CH2)3Ti(π-C5H5), respectively.
    Notes: Die Organocer(III)-Verbindung Na(THF)[(π-C5H5)3Ce(σ-C5H5)] (I) reagiert mit (C6H5CH2)3SnCl und (C6H5CH2)3TiCl im Sinne einer SN-Reaktion unter Abscheidung von NaCl und (C5H5)3Ce zu Tribenzylzinn- bzw. -titancyclopentadienyl (C6H5CH2)3MC5H5 [M = Sn, (II); Ti, (III)]. Eine eingehende Charakterisierung von II und III erfolgte durch Elementaranalysen, IR-Spektroskopie sowie durch 1H-, 13C- bzw. 119Sn-NMR-spektroskopische Untersuchungen. Diesbezügliche Resultate gestatten die Aussage, daßII bzw. III durch die Formeln (C6H5CH2)3Sn(σ-C5H5) und (C6H5CH2)3Ti(π-C5H5) zu beschreiben sind.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19905810105
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  • 8
    Electronic Resource
    Electronic Resource
    Beiträge zur Lanthanoidchemie. III Zur Kenntnis von 2-(Dimethylaminomethyl)ferrocenyl-Verbindungen des Samariums und Yttriums (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1957-1961 
    Details
    ISSN: 0044-2313
    Keywords: Organolanthanide chemistry, samarium, yttrium ; 2-(dimethylaminomethyl)ferrocenyl compounds ; heterobimetallic organolanthanide chelate complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contribution to Organolanthanoide Chemistry. III. On 2-(Dimethylaminomethyl)ferrocenyl Compounds of Samarium and YttriumEarlier results, indicating the ability of the bulky 2-(dimethylaminomethyl)ferrocenyl-group (FcN) to form thermocally stable, heterobimetallic organolanthanide compounds, were proved by the synthesis of organo-rare-earth derivatives (C5Me5)2Sm(FcN) (II), (C5H5)Sm(FcN)Cl (III), respectively (C5Me5)Y(FcN)Cl (IV) from the corresponding complex cyclopentadienyl rare-earth chlorides (C5Me5)2SmCl · KCl · THF, (C5H5)SmCl2 · THF and (C5Me5)YCl2 · KCl · 1,8 THF and 2-(dimethylaminomethyl)ferrocenyl lithium (FcN)Li (I) as organylating agent. The synthesized compounds were proved by elementary analysis, IR, 1H, 13C NMR and UV-VIS spectra as well as by measuring the magnetic moments and by mass spectroscopy.
    Notes: Frühere Befunde, wonach die voluminöse 2-(Dimethylaminomethyl)ferrocenyl-Gruppierung (FcN) zur Bildung thermisch stabiler, heterobimetallischer Organolanthanoid(III)-Verbindungen befähigt ist, wurden durch die Darstellung der Organoseltenerd(III)-Derivate (C5Me5)2Sm(FcN) (II), (C5H5)Sm(FcN)Cl (III) und (C5Me5)Y(FcN)Cl (IV) aus den betreffenden komplexen Cyclopentadienyl-Seltenerd(III)-chloriden (C5Me5)2SmCl · KCl · THF, (C5H5)SmCl2 · THF bzw. (C5Me5)YCl2 · KCl · 1,8 THF und 2-(Dimethylaminomethyl)ferrocenyl-Lithium (FcN)Li (I) als Organylierungsmittel bestätigt. Die erhaltenen Verbindungen wurden durch Elementaranalysen, IR-, 1H-NMR-, 13C-NMR- und UV-VIS-Spektren sowie durch die Ermittlung der effektiven magnetischen Momente und die Aufnahme der Massenspektren charakterisiert.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936191122
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  • 9
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Alkylverbindungen von Übergangsmetallen. 57. 2-(Dimethylaminomethyl)ferrocenyl-Verbindungen von 3d-ElementenProfessor Rudolf Taube zum 60. Geburtstage gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 606 (1991), S. 133-139 
    Details
    ISSN: 0044-2313
    Keywords: 2-(Dimethylaminomethyl)ferrocenyl 3 d metal compounds ; preparation ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. 57. 2-(Dimethylaminomethyl)ferrocenyl Compounds of 3 d Elements[2-(Dimethylaminomethyl)ferrocenyl]lithium, (FcN)Li (I), reacts with MCl2 · xTHF to (FcN)2Mn (II), (FcN)2Co (III), Li2[Fe(FcN)2Cl2] (IV) as well as with FeCl3 to (FcN)3Fe (V). In the same way the complex (C5H5)2V(FcN) (VI) was obtained from (C5H5)2VCl. When I is reacted with M(acac)3 (M = Cr, Co) only a partial ligand exchange took place  -  independently from the molar ratio of the reactants  -  with formation of (FcN)Cr(acac)2 (VII) and (FcN)Co(acac) (VIII).An intensive characterization of II-VIII was achieved by elementary analysis, determination of molecular weights, IR-, UV-VIS- and 1H-NMR spectra as well as determination of effective magnetic moments.
    Notes: [2-(Dimethylaminomethyl)ferrocenyl]lithium, (FcN)Li (I), reagiert mit MCl2 · xTHF zu (FcN)2Mn (II), (FcN)2Co (III), Li2[Fe(FcN)2Cl2] (IV) sowie mit FeCl3 zu (FcN)3Fe (V). Auf gleiche Weise wurde aus (C5H5)2 VCl der Komplex (C5H5)2V(FcN) (VI) erhalten. Bei der Einwirkung von I auf M(acac)3 (M = Cr, Co) erfolgte unabhängig vom Molverhältnis der Reaktanten nur ein partieller Ligandenaustausch unter Bildung von (FcN)Cr(acac)2 (VII) und (FcN)Co(acac) (VIII).Eine eingehende Charakterisierung von II-VIII erfolgte durch Elementaranalysen, Molmassebestimmungen, IR-, UV-VIS- und 1H-NMR-Spektren sowie Bestimmung der effektiven magnetischen Momente.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19916060114
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  • 10
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Alkylverbindungen von Übergangsmetallen. 53. Darstellung und Eigenschaften von Mangantetravinyloxid, Mn(OCH=CH2)4 · 0,5 THF (1988)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 564 (1988), S. 81-84 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Organo Transition Metal Compounds. 53. Synthesis and Properties of Manganese Tetravinyloxide, Mn(OCH=CH2)4 · 0.5 THFTetrakis(1-Norbornyl)manganese (I) reacts with boiling tetrahydrofuran forming ethylene, norbornane, and manganese tetravinyloxide Mn(OCH=CH2)4 · 0.5 THF (II) as the first manganese tetraalcoxide. The compound was characterized by elementary analysis, the i.r. and 1H n.m.r. spectrum, the effective magnetic moment, and the protolysis products.
    Notes: Tetrakis(1-norbornyl)mangan (I) reagiert mit siedendem Tetrahydrofuran unter Abspaltung von Ethylen und Norbornan zu Mangantetravinyloxid, Mn(OCH=CH2)4 · 0,5 THF (II), als dem ersten bekannt gewordenen Mangan(IV)-alkoxid. Die Verbindung wurde durch Elementaranalyse, das IR- und 1H-NMR-Spektrum, das effektive magnetische Moment und durch die Protolyseprodukte charakterisiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19885640110
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