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- W2149282608 abstract "The title compound (I) has been found to form stable adducts when recrystallised from various pure solvents. Most significantly, host (I) exhibits a remarkably high selectivity for certain para-disubstituted aromatic molecules. For example, recrystallisation of (I) from an equimolar mixture of each of the xylenes, and ethylbenzene leads to incorporation of 97.5% of p-xylene. An X-ray investigation of the inclusion compound of (I) with p-xylene has been carried out. Crystals are triclinic, space group P1, with a= 8.958(1), b= 14.822(2), c= 15.496(2)Å, α= 81.20(1)°, β= 83.05(1)°, γ= 79.38(1)°, with three host and a single guest molecule in the unit cell. The structure was refined by least-squares methods to a final R of 0.036 for 2 558 significant diffractometer data. The adduct is of the true clathrate type, the highly ordered p-xylene guest being accommodated in an effectively closed cage. Compounds (II)–(V) which are structurally related to (I) have also been prepared and found to exhibit inclusion behaviour, but to a lesser degree than (I)." @default.
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- W2149282608 date "1980-01-01" @default.
- W2149282608 modified "2023-09-28" @default.
- W2149282608 title "A study of the inclusion properties of 1,2-bis(diphenylphosphinoselenoyl)ethane and related host molecules" @default.
- W2149282608 doi "https://doi.org/10.1039/p29800000993" @default.
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