Barton, Benita published the artcileAn investigation of the complexation of host N,N’-bis(9-phenyl-9-thioxanthenyl)ethylenediamine with dihaloalkane guests, Related Products of alcohols-buliding-blocks, the publication is Journal of Inclusion Phenomena and Macrocyclic Chemistry (2017), 89(1-2), 105-116, database is CAplus.
Two wheel-and-axle host compounds were synthesized and assessed for their host ability. After growing crystals of N,N’-bis(9-phenyl-9-thioxanthenyl)ethylenediamine from various alkyl halide solvents, we discovered that this host is highly proficient for the enclathration of these guest types. However, the novel compound N,N’-bis(9-phenyl-9-xanthenyl)-1,6-hexamethylenediamine, bearing the more flexible axle, showed no inclusion ability whatsoever. Competition experiments where the title host compound was recrystallized from equimolar binary and ternary mixtures of CH2Cl2, CH2Br2 and CH2I2 showed this host to have a selectivity in the order CH2Br2 > CH2I2 > CH2Cl2 for these guests. Varying the molar ratios of guests in these mixtures beyond equimolar revealed that the host remained selective for the bromine derivative whenever it was present, even at low dibromomethane concentrations Single crystal X-ray diffraction data and, more specifically, host-guest interactions in the crystal, were used to explain the selectivity order; lattice energies were also considered in this context. The relative thermal stabilities of the three complexes, obtained from thermal experiments, showed that the selectivity order and these thermal stabilities are unrelated.
Journal of Inclusion Phenomena and Macrocyclic Chemistry published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, Related Products of alcohols-buliding-blocks.
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