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  • 1995-1999  (4)
  • 1930-1934  (1)
  • Inorganic Chemistry  (3)
  • Secale cereale L.  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Detection of quantitative trait loci on chromosome 5R of rye (Secale cereale L.) (1999)
    Springer
    Theoretical and applied genetics 98 (1999), S. 1087-1090 
    Details
    ISSN: 1432-2242
    Keywords: Key words Quantitative trait loci ; Genetic mapping ; RFLP ; Agronomic characters ; Secale cereale L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Progenies of an F2 mapping population were analyzed for quantitative traits to detect QTLs by using marker information from F2 plants for chromosome 5R. The mapping population was segregating for the major dwarfing gene Ddw1 and the gene Hp1 for hairy peduncle. The only QTL determining plant height was located between HP1 and Ddw1 on the distal part of chromosome 5RL. At the same position a QTL for peduncle length was found, and this trait was closely related to plant height (r=0.895). Since Hp1 and Ddw1 are dominant marker loci, no dominance effect could be estimated. The QTLs for spike length and the number of florets were located near the centromere on 5RL. These two traits were correlated with r=0.824 and showed partial dominance, but these traits were not correlated to plant height and peduncle length. Homoeologous relationships between the QTLs mapped for the first time in rye and those mapped in other Triticeae members are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051171
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  • 2
    Electronic Resource
    Electronic Resource
    A genetic linkage map of rye (Secale cereale L.) (1998)
    Springer
    Theoretical and applied genetics 96 (1998), S. 203-208 
    Details
    ISSN: 1432-2242
    Keywords: Key words Genetic mapping ; Reciprocal crosses ; RFLP ; Rye ; Secale cereale L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A genetic linkage map of rye composed of 91 loci (88 RFLP, two morphological and one isozyme markers) has been developed using two reciprocal crosses. The RFLP loci covering all seven chromosomes were detected by a selection of rye, wheat, barley and oat cDNA and genomic DNA probes. The level of polymorphism was dependent on the source of the clones, with a ranking of rye〉wheat〉barley〉oat. Distorted segregations were detected in linkage groups of chromosomes 1R, 4R, 5R and 7R. When the recombination of the two reciprocal crosses was compared, no systematic increase or decrease in one or the other direction was observed suggesting that a combination of populations of reciprocal crosses is possible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050728
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Das Zustandsdiagramm der Kupfer-Goldlegierungen (1931)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 201 (1931), S. 41-74 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19312010107
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  • 4
    Electronic Resource
    Electronic Resource
    Die Ammonolyse von (NH4)2GeF6. Darstellung und Struktur von NH4[Ge(NH3)F5] (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 1529-1534 
    Details
    ISSN: 0044-2313
    Keywords: Formation of NH4[Ge(NH3)F5] ; structure ; ammonolysis ; ir spectrum ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ammonolysis Reaction of (NH4)2GeF6. Synthesis and Structure of NH4[Ge(NH3)F5](NH4)2GeF6 reacts with ammonia to yield NH4[Ge(NH3)F5] at 280°C. The reaction path was elucidated by in situ time and temperature resolved X-ray powder diffraction. NH4[Ge(NH3)F5] crystallizes isostructurally to NH4[Si(NH3)F5] in the tetragonal space group P4/n (No. 85) with lattice constants a = 619.41(1) pm and c = 724.70(1) pm. The germanium atom is coordinated by five fluorine atoms and the nitrogen atom of the ammonia molecule. The ammonium cation is located on the Wyckoff position (2 a) in P4/n. The crystal structure is stabilized by extensive hydrogen bonding.
    Notes: (NH4)2GeF6 reagiert mit Ammoniak bei 280°C zu NH4[Ge(NH3)F5]. Der Reaktionsverlauf wurde in situ mit Hilfe der zeit- und temperaturaufgelösten Röntgenpulverdiffraktometrie verfolgt. Das so dargestellte NH4[Ge(NH3)F5] kristallisiert isostrukturell mit NH4[Si(NH3)F5] in der tetragonalen Raumgruppe P4/n (Nr. 85) mit den Gitterkonstanten a = 619,41(1) pm und c = 724,70(1) pm. Dabei ist das Germaniumatom verzerrt oktaedrisch von fünf Fluoratomen und dem Stickstoffatom des Ammoniakmoleküls koordiniert. Das Ammoniumion liegt auf der Tetraederpunktlage (2 a) in P4/n. Die Verbindung wird durch Wasserstoffbrückenbindungen stabilisiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19976231010
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  • 5
    Electronic Resource
    Electronic Resource
    Zeit- und temperaturaufgelöste Röntgenpulverdiffraktometrie: Die Reaktion von (NH4)2SnF6 mit Ammoniak (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 617-623 
    Details
    ISSN: 0044-2313
    Keywords: Formation of Sn(NH3)2F4 ; ammonolysis ; thermal decomposition of (NH4)2SnF6 ; time and temperature resolved x-ray diffractometry ; in situ x-ray diffractometry ; solid state reactions ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Time and Temperature Resolved in situ X-Ray Powder Diffractometry. The Reaction of (NH4)2SnF6 with AmmoniaThe thermal decomposition of (NH4)2SnF6 under an atmosphere of ammonia is reported. The complicated reaction paths were illucidated by time and temperature resolved in situ x-ray powder diffractometry. It is shown that this technique is a powerful tool to observe structural changes during reaction. It offers also a valuable access to thermodynamic and kinetic data for solid state and gas phase reactions. (NH4)2SnF6 decomposes under ammonia below room temperature to NH4F and amorphous SnF4 · x NH3. At a temperature of 80°C an intermediate product, (NH4)4SnF8, is formed, which decomposes at 140°C into (NH4)2SnF6 and NH4F. At 250°C (NH4)[Sn(NH3)F5] and Sn(NH3)2F4 are formed. The latter crystallises C-centered monoclinic with lattice constants a = 844.1(5) pm, b = 630.5(3) pm, c = 520.2(3) pm and b̃ = 114.02(7)°. At 330°C a further decomposition yields SnF2(NH2)2 with a C-centered monoclinic cell and lattice constants a = 1 069(7), b = 325.3(2), c = 504.8(3) pm and b̃ = 105.83(7)°. Finally above 500°C tin metal is formed.
    Notes: Der komplizierte Verlauf der Reaktion von NH3 mit (NH4)2SnF6 wird mit der zeit- und temperaturaufgelösten Röntgendiffraktometrie verfolgt. Dabei erweist sich diese Methode als ideale Technik, um Veränderungen in der Struktur während der Reaktion aufzuzeichnen und ebenfalls thermodynamische und kinetische Daten zu gewinnen. (NH4)2SnF6 zersetzt sich schon bei 25°C unter trockenem NH3-Gas zu NH4F und einem röntgenamorphen Ammoniakat SnF4 · x NH3. Ab 80°C bildet sich (NH4)4SnF8 als Zwischenprodukt, das sich ab 140°C wieder in (NH4)2SnF6 und NH4F zersetzt. Bei 250°C entstehen NH4[Sn(NH3)F5] und Sn(NH3)2F4. Letzteres kristallisiert monoklin C-zentriert mit den Gitterkonstanten a = 844,1(5) pm, b = 630,5(3) pm, c = 520,2(3) pm und b̃ = 114,02(7)°. Ab 330°C erhält man SnF2(NH2)2. Aus dem Pulverdiffraktogramm ergibt sich eine C-zentrierte monokline Elementarzelle mit a = 1 069(7), b = 325,3(2), c = 504,8(3) pm und b̃ = 105,83(7)°. Bei noch höheren Temperaturen erfolgt die Zersetzung zu Zinn.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956210419
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