ISSN:
1573-1111
Keywords:
calix[8]arene
;
crystal structure
;
CDCl3 guest
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The methyl ether of calix[8]arene crystallizes from CDCl3 with two molecules of the solvent per molecule of host. An X-ray structural investigation has shown that the CDCl3 guests exist within the calixarene framework. The complex resides on a crystallographic center of inversion, and the cavity is roughly circular in projection as measured by the distance between centroids of aromatic rings related by the center: 14.5, 13.9, 10.1, and 11.2 Å. Six of the oxygen atoms are found on the inside and two on the outside. Crystals belong to the triclinic space group $$P\bar 1$$ witha=11.741(9),b=11.810(9),c=12.484(8) Å, α=94.74(8), β=104.41(8), γ=111.30(9)°, andD c =1.31 g cm−3 forZ=1. Refinement led to a finalR value of 0.086 for 949 observed reflections.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00657998
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