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'Melting Diagram' in keywords Facet   Publication Year 1993  [X]
Facet   section ZfN Section B  [X]
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1Author    DietrichM. Ootz, Dieter StäbenRequires cookie*
 Title    Die Hydrate von terf-Butanol: Kristallstruktur von Me3COH * 2 H20 und Me3COH * 7 H20 [ 1 ]  
 Abstract    The system /er/-butanol-water has been confirmed by X-ray powder diffraction and single­ crystal structure analysis to contain two hydrates, a dihydrate and a higher hydrate. The com ­ position o f the latter, contradictory in the literature, could be resolved in favor o f the new one o f a heptahydrate. The dihydrate (m.p. 0.7 °C) is m onoclinic with space group P2, and Z = 2 formula units per unit cell o f dim ensions a = 6.017, b = 6.055, c = 10.377 A and ß -106.60° at -150 °C. The heptahydrate (m.p. -6 °C, dec.) is orthorhombic with space group Pnma, Z = 4, a -12.589, b = 15.251 and c = 6.645 A at -150 °C. Both hydrates contain characteristic layers o f hydrogen-bonded O atom s, which in the heptahydrate are further linked into a three-di-m ensional semi-clathrate structure. 
  Reference    Z. Naturforsch. 48b, 1325—1330 (1993); eingegangen am 17. Mai 1993 
  Published    1993 
  Keywords    te/7-Butanol Hydrates, Melting Diagram, Crystal Structure, Hydrogen Bonding 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1325.pdf 
 Identifier    ZNB-1993-48b-1325 
 Volume    48 
2Author    Axel Deeg, Dietrich MootzRequires cookie*
 Title    Addukte Aromat/Chlorwasserstoff bei tiefen Temperaturen: Beiträge zu Bildung und Kristallstruktur [ 1 ] Adducts Arene/Hydrogen Chloride at Low Temperatures: C ontributions to Form ation and Crystal Structure [1]  
 Abstract    The melting diagrams o f the systems benzene-HCl, toluene-HCl and mesitylene-HCl have been established and the crystal structures o f two adducts determined. The adduct tolu ene-2 HC1, melting incongruently at -1 1 5 °C, is monoclinic with space group C 2 /c and Z = 4 formula units per unit cell; the adduct mesitylene-HCl, m .p. -6 4 °C, is orthorhom bic with space group P bca and Z = 8. The HC1 molecules are situated on both sides and one side, respectively, o f the plane o f the aromatic system and are linked to it by weak hydrogen bonds o f the type C l-H — it. 
  Reference    Z. Naturforsch. 48b, 571—5 (1993); eingegangen am 14. Dezember 1992 
  Published    1993 
  Keywords    Adducts Arene/HCl, Melting Diagrams, Crystal Structure, Hydrogen Bonding C l-H — it 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0571.pdf 
 Identifier    ZNB-1993-48b-0571 
 Volume    48