A supramolecular synthon approach to aid the discovery of architectures sustained by C–H…M hydrogen bonds.

Hydrogen bonding in the form of eight-membered {…HCNM}2 synthons is identified in the crystal structures of nickel and copper complexes. These C–H…M interactions lead to the formation of well-defined zero-, one- and even two-dimensional supramolecular aggregation patterns. [ABSTRACT FROM AUTHOR]