Kumar, Manoj ; Hundal, Geeta ; Bhalla, Vandana ; Madhu, ; Singh, Mangal (2000) Crystal structure of a calix[4]crown ether-ester and molecular recognition of alkyl- and arylalkylamines Journal of Inclusion Phenomena and Macrocyclic Chemistry, 36 (4). pp. 461-472. ISSN 0923-0750
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Official URL: https://link.springer.com/article/10.1023%2FA%3A10...
Related URL: http://dx.doi.org/10.1023/A:1008134703152
Abstract
The crystal and molecular structure of3 has been determined by X-ray analysis. Thecrystal data are: triclinic, space group P'1,a = 12.999(2),b = 14.114(3),c = 16.132(3) Å,α = 91.62(2),β = 97.71(1),γ = 91.38(2)°,V = 2930.6(9) Å3,Z = 2,Dm = 1.046 g cm-3.Rotational disorder has been seen in the t-butyl groups whichwere refined isotropically. Least-squares refinementbased on F2, using 4827 observedreflections with I > 2σ(I) and 18 restraints,led to R = 0.123. The calix is found in a coneconformation. The crown ether part of the molecule isnot in a fully extended conformation but has foldsin the chain. The calix[4]crown ether-ester exhibitsmolecular recognition properties toward alkylamines.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer Verlag. |
| Keywords: | Calix[4]Arene; Calixcrown; Ether Ester; Crystal Structure |
| ID Code: | 114294 |
| Deposited On: | 16 May 2018 08:19 |
| Last Modified: | 16 May 2018 08:19 |
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