Side chain-directed assembly of triangular molecular panels into a tetrahedron vs. open coneElectronic supplementary information (ESI) available: physical properties of open cone 4 with mesitylene and CBr4. See http://www.rsc.org/suppdata/cc/b3/b305129c/

Abstract

Despite their structural similarity, triangular tetradentate ligands 2b and 2c experience different assembly pathways on complexation with (en)Pd(NO3)2 to give M8L4 tetrahedral (3) and open cone (4) structures, respectively, due to steric restriction by side chains at the corner or on the edge of the ligands.