1 Supplementary Information for manuscript entitled: Rapid Formation of Metal-Organic Nano-Capsules Gives New Insight Into the Self-Assembly Process Scott J. Dalgarno, Nicholas P. Power, John E. Warren, Jerry L. Atwood Information comprises: • Experimental details • Crystallographic data • Figures of the PgC 3 OH Cu-MONC (Figures S1 and S2). • Figures of the MALDI-TOF spectra collected for Cu-MONC’s with PgC 2 , PgC 4 – PgC 11 and Pg Isobutyl (Figures S3 – S12). • Description of the PgC 12 and PgC 13 bi-layer arrangements formed by crystallization from ethyl acetate (Figures S13 – S18). Supplementary Material (ESI) for Chemical Communications This journal is (c) The Royal Society of Chemistry 2008