A three-dimensional honeycomb-like network constructed with novel one-dimensional S-shaped chains via hydrogen bonding and π–π interactionsElectronic supplementary information (ESI) available: experimental and simulated powder X-ray diffraction patterns (Fig. S1) and plots of χM–1 vs. T and the effective magnetic moment µeff vs. T (Fig. S2) for 1. See http://www.rsc.org/suppdata/nj/b1/b107655h/