Jc stacking interactions

The majority of donor-acceptor-type SOs has been designed to exploit jt-jc-stacking interactions between electron-rich and electron-deficient aromatic systems as the primary attractive interaction force. The chemical structures of several popular 71-donor-acceptor-type CSPs are given in Fig. 7.20. 

A Benzamidine Receptor. Cationic aromatic guests may bind to synthetic receptors by a combination of hydrogen-bonding and jc-stacking interactions. Figure 11 displays the complex of benzamidinium chloride with a hexagonal lattice cleft that is bridged by an aromatic spacer unit (27). Results of titration studies in 95 5... 

Donor-Acceptor Jt-JC Stacking Interactions Frran Small Molecule... 

Fig. 8 Left Chemical structure of the supramolecular motif (4) synthesized by Greenland et al. containing one acceptor and two donor residues. Right Solid-state structure of this motif showing the interactions between two discrete molecules yellow and blue) resulting in a highly stable ditopic structure A supported by four face-to-face jc-jc stacking interactions. (Image of A reprinted with permission from [50], Copyright 2013 RSC)...

Haddad R, Cosnier S, Maaref A, Holzinger M (2009) Non-covalent biofunctionalization of single-walled carbon nanotubes via biotin attachment by jc-stacking interactions and pyrrole polymerization. Analyst 134(12) 2412-2418... 

Prior to development of synthetic i-stacked polymers, characteristic features of jc-stacked molecules had been studied for small molecule systems. A representative example is the tetrathiafulvalene (TTF)-tetracyanoquinodimethane (TCNQ) complex in crystal prepared by the Johns Hopkins group [Cowan et al., Journal of the American Chemical Society, vol. 95, p. 948 (1973)]. In the TTC-TCNQ complex, charges generated by the donor-acceptor interaction between TTF and TCNQ are transported/delocalized through independent columns of TTF and TCNQ stacks in crystal, leading to a molecular conductor. In order to find parallels of the TTF-TCNQ crystal, various combinations of donor and acceptor molecules were studied. 

The standard model of the nature of the jc-jt stacking, developed by Hunter and Saunders and promoted by Cozzi et al. partitions the interaction into a... 

Where does this aU leave us concerning ji-stacking Iverson argues that the term is loaded with context that no longer has any value. He suggests that t-stacking and jc-jc interactions are terms that are misleading and should be avoided. The computational results discussed here certainly point toward that confusion. 

Vangala VR, Nangia A, Lynch VM (2002) Interplay of phenyl-perfluorophenyl stacking, C-H - F, C-F - jc and F - F interactions in some crystaUine aromatic azines. Chem Commun 1304-1305... 

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