In-situ analysis of stepwise self-assembled 1,6-Hexanedithiol multilayers by surface plasmon resonance measurementsElectronic supplementary information (ESI) available: cyclic voltammogram of Au and HDT Au substrates. See http://www.rsc.org/suppdata/cc/b2/b206817f/

1,6-Hexandithiol (HDT) forms 6.9 +/- 1.0 A thick defect-free monolayers on gold substrates if the solution is purged by argon during the adsorption while long term (> 1000 min) exposure of the substrate to alcoholic HDT results in the stepwise formation of multilayers in the absence of argon purging.