Abstract
Co-crystallization of C-ethyl-calix[4]resorcinarene (1) and 4,4′-bipyridine (4,4′-bipy) from ethanol in the presence of ferrocene (FcH) yielded a multi-component complex FcH@1·2(4,4′-bipy) (3) that consists of a one-dimensional wave-like polymer, 1·2(4,4′-bipy), in which the cavity of 1 is deepened supramolecularly to enclose ferrocene as a guest. Heating mixture of C-methyl-calix[4]resorcinarene (2), trans-1,4-bis-(pyridyl)ethylene (bpe) and FcH in ethanol led to isolation of a similar host–guest complex FcH@2·2(bpe)·0.5C6H14 (4) in which the FcH guests have been assembled within a wave-like framework (2)·2(bpe).
Graphical Abstract
Ferrocene acts as the guest molecule for the self-assembly of the 1:2:1 C-ethyl-calix[4]resorcinarene/4,4′-bipyridine/ferrocene and the 1:2:1 C-methyl-calix[4]resorcinarene/trans-1,4-bis(pyridyl)ethylene/ferrocene supramolecular co-crystals.
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This project was supported by Natural Science Foundation of China (90922008).
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Wang, YJ., Liu, JL., Yang, HM. et al. Inclusion of ferrocene within the deepened cavities formed from the hydrogen bonding self-assembly of calix[4]resorcinarenes with bis-pyridines. J Incl Phenom Macrocycl Chem 85, 105–110 (2016). https://doi.org/10.1007/s10847-016-0609-0
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DOI: https://doi.org/10.1007/s10847-016-0609-0