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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 23 (1995), S. 313-327 
    ISSN: 1573-1111
    Keywords: Phenols ; dioxane ; hydrogen bonding ; screw axes ; aromatic ring interactions ; weak attractive forces
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The 1,5-dichloro-(1) and 1,5-dibromo-(2) naphthalene-2,6-diols form isostructural lattices incorporating ...O−H...O−H...O−H... hydrogen bonding surrounding 21 screw axes. Each phenolic hydroxy group participates in one donor and one acceptor hydrogen bond. When crystallised from dioxane, both compounds form new 1:1 co-crystalline materials whose lattices are closely related but not isostructural. All inter-phenolic hydrogen bonding is now absent with each hydroxy group acting instead as a donor to a dioxane oxygen atom. In consequence, the hydrogen bonded layer structures of pure1 or2 are now replaced by hydrogen bonded chain arrangements. All four crystal structures are analysed and compared in crystal engineering terms through discussion of the various types of other weak intermolecular attractions involved in their lattice constructions.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 20 (1994), S. 267-276 
    ISSN: 1573-1111
    Keywords: Phenols ; dioxane ; hydrogen bonding ; co-crystals ; aromatic ring interactions ; coronene packing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The 1,4-dichloro-(1) and 1,4-dibromo-(2) derivatives of naphthalene-2,3-diol crystallise in structures containing acetic acid or dioxane solvent molecules. X-ray crystallographic examination of the compound formed between1 and dioxane is reported here [(C10H6Cl2O2)2·(C4H8O2),P21/c,a=12.358(3),b=4.9930(7),c=19.167(4) Å,β=96.09(1)0,Z=2,R=0.035] and this structure is analysed in crystal engineering terms. The compound is a co-crystalline material involving two types of hydrogen bonding: one phenolic group participates in a $$\begin{gathered} ...{\text{OH }}...{\text{OH }}...{\text{OH}} \hfill \\ {\text{ | | |}} \hfill \\ {\text{ Ar Ar Ar}} \hfill \\ \end{gathered} $$ chain, while the second phenolic group hydrogen bonds to a dioxane. Extension of the hydrogen bonding network through the second dioxane oxygen results in heavily corrugated layers. Neighbouring layers interact by a combination of aromatic face-face and edge-face interactions similar to a partial coronene-type γ packing to complete the structure.
    Type of Medium: Electronic Resource
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