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  • 1
    Electronic Resource
    Electronic Resource
    Syntheses and variable-temperature Moessbauer study of tin(IV) cyanide derivatives (1985)
    s.l. : American Chemical Society
    Inorganic chemistry 24 (1985), S. 3892-3895 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00217a039
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  • 2
    Electronic Resource
    Electronic Resource
    Bis(1-methylguanidinium) tetrachlorocuprate(II) and 4-(2-pyrimidin-1-io)piperazinium tetrachlorocuprate(II)Dedicated to Professor Dr Ulrich Müller on his 60 th birthday. (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. e385-e387 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The crystal structures of the title compounds, (C2N3H8)2[CuCl4], (I), and (C8H14N4)[CuCl4], (II), have been studied by X-ray diffraction. The structures consist of discrete [CuCl4]2− anions with two monoprotonated (C2N3H8)+ cations for (I) and a diprotonated (C8N4H14)2+ cation for (II). The [CuCl4]2− anions of both compounds have flattened tetrahedral geometries. There are several N—H...Cl weak bonds that join the [CuCl4]2− anions and the organic cations helping retain the pseudo-tetrahedral geometries of the anions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100011045
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  • 3
    Electronic Resource
    Electronic Resource
    Fracture Behavior of an Ultrahigh Carbon Steel Containing 1.3%C as Influenced by Microstructure and Testing Conditions (2003)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 426-432 (Aug. 2003), p. 847-852 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/07/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.426-432.847.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    TiC Reinforced Steel Matrix Composite Layers Produced by Laser Surface Alloying (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 59 (Dec. 2008), p. 55-61 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In the present work, laser surface alloying of H13 tool steel by using TiC has been performed by means of DHPDL (Direct high power diode laser). Different layers were produced by varying laser beam power and powder feeding rate. Several alloying degrees were obtained depending on the laser parameters employed. Laser surface alloyed layers were analyzed by using optical and scanning electron microscopy. Wear resistance was evaluated through pin-on-disk tests at room temperature. In general, it was observed that dilution of TiC powders into the molten H13 substrate decreased as the powder-feeding rate increased and particles size of the titanium carbide precipitates was larger for the higher feeding rates. Wear measurements showed lower values for the wear resistance coefficient of laser alloying layers produced at higher values of the powder injection (feeding) rate. Analysis of the wear surface track was conducted and the specific contribution of the microstructural features on the wear coefficient was assessed. Thus, it was found that larger particles sizes and particle contents protected the martensitic and dendritic steel matrix from being deeply worn. Lower TiC contents in the alloyed layer gave rise to a higher contribution of the plastic deformation in the wear track
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.59.55.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Thermomechanical Treatments of Ultrahigh Carbon Steels and Optimal Microstructures to Improve Toughness (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 539-543 (Mar. 2007), p. 4826-4831 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Thermomechanical processing allows the attainment of spheroidized microstructures thatshow improved mechanical properties. In this work, a thermomechanical processing routeconsisting of two steps was developed for two ultrahigh carbon steels (UHCS) containing 1.3 and1.5%C. This route develops structures of fine spheroidized cementite particles in a fine-grainedferrite matrix. Spheroidized microstructures are formed by eutectoid carbide particles in the UHCS-1.3C and by proeutectoid and eutectoid carbide particles in the UHCS-1.5C. In the latter steel, theproeutectoid carbide particle size is larger than the eutectoid carbide particle size. The carbide sizedistribution remains basically constant with austenitizing temperature for both steels. Plane-strainfracture toughness of spheroidized UHCS-1.3C is higher than for UHCS-1.5C, about 80 vs 40 MPam1/2. These values do not vary significantly with austenitizing temperature which is attributed tothe constancy of the mean proeutectoid and eutectoid carbide size
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.4826.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Synthetic and physicochemical studies of divalent metal complexes with cyclic hydrazone and semicarbazone ligands (1995)
    Springer
    Transition metal chemistry 20 (1995), S. 157-161 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The syntheses of 3,4,10,11-tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca-7, 14-dione-2,4,9,11-tetraene (dbdch) and 6-methoxy-1,6-diphenyl-4-oxo-3,4,5,6-tetrahydro-2,3,5-triazine (bsc) and their complexes with divalent metal ions (copper, nickel, cobalt, zinc, cadmium and mercury) are reported. All compounds were characterized by 1H n.m.r., 13C n.m.r., i.r. and u.v.-vis. spectroscopy and by FAB mass spectrometry; possible structures are presented and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00167020
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  • 7
    Electronic Resource
    Electronic Resource
    2,4,6-Tribrom-1,3,5-tris(dibromboryl)borazin (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 488-492 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 2,4,6,-Tribromo-1,3,5-tris(dibromoboryl)borazineThe title compound can be obtained by the reaction of N-chlorovanadium nitride trichloride, Cl3 VNCl, with excess boron tribromide. The compound is characterized by its spectra.
    Notes: Die Titelverbindung 1 entsteht durch Umsetzung von N-Chlorvanadinnitridtrichlorid. CL3 VNCl, mit überschüssigem Bortribromid. Die Verbindung wird spektroskopisch charakterisiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090211
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  • 8
    Electronic Resource
    Electronic Resource
    Mixed Halide Tin(IV) Complexes with NN-dimethylformamide and dimethylsulfoxide (1986)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 532 (1986), S. 215-224 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Komplexe gemischter Zinn(IV)-Halogenide mit NN-dimethylformamid und DimethylsulfoxidDurch oxidative Addition von Br2 und I2 zu SnCl2 bei Anwesenheit von NN-dimethylformamid (DMF) und Dimethylsulfoxid (DMSO) wurden die Gemischtligand-komplexe SnCl2Br2L2 (L = DMF, DMSO) erhalten. Nach den IR-, Raman- und Mößbauer-Spektren sind die Liganden über ihre O-Atome in cis-Stellung mit dem Metallatom koordiniert; es wurde C1-Symmetrie für SnCl2I2(DMSO)2 gefunden. SnCl2Br2(DMSO)2 kristallisiert triklin in der Raumgruppe P1 mit zwei Formeleinheiten pro Elementarzelle. Die Gitterabmessungen sind a = 752,4, b = 1350,6, c = 820,3 pm, α = 89,60, β = 117,31 und γ = 90,83°; 2317 unabhängige beobachtete Reflexe, R = 8,4%. Die Struktur ist ungeordnet und unsere Ergebnisse stimmen mit einer C1 molekularen Symmetrie überein. Gemischte Produkte wurden durch Reaktionen von SnCl2 mit I2 in Anwesenheit von DMF und von SnBr2 mit I2 in Anwesenheit von DMSO erhalten.
    Notes: By oxidative-addition reactions of Br2 and I2 to SnCl2 in the presence of NN-dimethylformamide (DMF) and dimethylsulphoxide (DMSO), the mixed halide complexes SnCl2Br2L2 (L = DMF, DMSO) and SnCl2I2(DMSO)2 are obtained. The IR, Raman and 119Sn Mössbauer spectra suggest that the ligands coordinate in cis position through the oxygen atom, a C1 symmetry being found for SnCl2I2(DMSO)2. SnCl2Br2(DMSO)2 crystallizes in the triclinic space group P1 with two molecules per unit cell. The lattice constants are a = 752.4, b = 1350.6, c = 820.3 pm, α = 89.60, β = 117.31 and γ = 90.83°. 2317 independent observed reflexions were used for refinement: R = 8.4%. The structure is disordered and our results are again consistent with a C1 molecular symmetry. Mixtures of products were obtained by reaction of SnCl2 with I2 in the presence of DMF and by reaction of SnBr2 with I2 in the presence of DMSO.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19865320129
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  • 9
    Electronic Resource
    Electronic Resource
    Die Reaktion von Molybdänpentachlorid mit (SCN)2, (SeCN)2 und ICN (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 477 (1981), S. 205-209 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Molybdenum Pentachloride with (SCN)2, (SeCN)2, and ICNBy reaction of MoCl5 with (SCN)2, (SeCN)2, and ICN in CCl4 or H2CCl2 the compounds MoCl5(NCS)2, MoCl5(NCSe)2, and MoCl5NCI were obtained. They are very sensitive towards hydrolysis and decompose on heating. The compounds are characterized by their vibrational and EPR spectra which indicate that the pseudohalogen is bonded via a nitrogen atom.
    Notes: Durch Reaktion von MoCl5 mit (SCN)2, (SeCN)2 bzw. ICN in CCl4 oder H2CCl2 wurden die Verbindungen MoCl5(NCS)2, MoCl5(NCSe)2 und MoCl5NCI erhalten. Sie sind sehr hydrolyseempfindlich und zersetzen sich beim Erhitzen. Die Verbindungen wurden durch ihre IR-und ESR-Spektren charakterisiert. Danach ist das Pseudohalogen über ein N-Atom an das Molybdän-koordiniert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814770627
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  • 10
    Electronic Resource
    Electronic Resource
    The Reaction of SnCl2 with Br2 and I2 in Weak Donor Solvents (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 509 (1984), S. 174-182 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Die Reaktion des SnCl2 mit Br2 und I2 in schwachen Donor-LösungsmittelnEs wurden die Verbindungen SnCl2Br2(MeCN)2, “Sn3Cl8Br4(THF)6” und “Sn3Cl10Br2(OEt)6” durch Reaktion zwischen SnCl2 und Br2 in Acetonitril (MeCN), Tetrahydrofuran (THF) und Diethylether (OEt2) gewonnen. Die zwei letzten Verbindungen sind feste Lösungen von SnCl4L2 und SnCl2Br2L2 (L = THF, OEt2) jeweils im Verhältnis 1:2 und 2:1. Die Verbindungen wurden mit Hilfe von IR-, Raman- und Mößbauer-Spektroskopie charakterisiert. Es wurde C1-Symmetrie für SnCl2Br2(MeCN)2 und C2v mit den Liganden in trans-Position für SnCl2Br2L2 (L = THF, OEt2) gefunden. Das bisher nicht bekannte Mößbauer-Spektrum des SnBr4(THF)2 wurde gemessen und ebenfalls die Reaktion zwischen SnCl2 und I2 in denselben Lösungsmitteln studiert. Die Bildung des SnCl4L2 (L = MeCN, THF, OEt2) SnI4 und einer kleinen Menge des SnI3Cl wurde beobachtet und Raman-spektroskopisch identifiziert.
    Notes: The compounds SnCl2Br2(MeCN)2, “Sn3Cl8Br4(THF)6”, and “Sn3Cl10Br2(OEt2)6” were obtained by reaction between SnCl2 and Br2 in acetonitrile (MeCN), tetrahydrofuran (THF) and diethyl ether (OEt2). The two last are solid solutions of SnCl4L2 and SnCl2Br2L2 (L = THF, OEt2) in the proportions 1:2 and 2:1, respectively. The compounds are characterized by IR, Raman, and Mössbauer spectroscopy, a C1 symmetry being found for SnCl2Br2 (MeCN)2 together with a C2v symmetry, with the ligands in trans positions, for SnCl2Br2L2 (L = THF, OEt2). The Mössbauer spectrum of SnBr4(THF)2 was also obtained, which has not previously been reported. The reaction between SnCl2 and I2 has also been studied in the same solvents, and the formation of SnCl4L2 (L = MeCN, THF, OEt2), SnI4, and a small amount of SnI3Cl was observed, which have been identified by Raman spectroscopy.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845090219
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