Halogen Bonding in Crystal Engineering - Halogen Bonding: Fundamentals and Applications - page 126

Self-assembled architectures wherein the XB acceptor is I -

Fig. 13 and the donors are

differently sized -diiodoperfluoroalkanes. The layer thickness depends on the size of

the XB donor module, thus allowing an accurate metric engineering of the layers to be
realized

α , ω

homocrystal of self-complementary tetradentate modules (e.g. 4,4 -diiodo-
4 ,4 -dinitrotetraphenylmethane [196], and in a variety of co-crystals)
(Fig. 14).
For instance, adamantanoid architectures are formed on the self-assembly
of tetradentate XB donors with tetradentate XB acceptors, both the com-
plementary tectons alternating at the nodes of the network (this is the
case in the complex CBr 4 / Et 4 N + Cl - and its bromide and iodide ana-

logues [192], in the complex tetrakis(4-pyridyl)pentaerythritol/tetrakis(4-
iodiotetrafluorophenyl)pentaerythritol [195], and in other systems [197]).