Supplementary Information for:

Amine capped gold nanoparticles: Reaction steps during the synthesis and the influence of the ligand on the particle size

Benjamin Marchetti*1, Yvonne Joseph1,2 and Helmut Bertagnolli1

1Institute for Physical Chemistry, University of Stuttgart, D-70569 Stuttgart, Germany

2Materials Science Laboratory, Sony Deutschland GmbH, Hedelfinger Str. 61 D-70327 Stuttgart, Germany

*

Structure before the reduction

Figure S1 Experimentalk3χ(k) function and the respective Fouriertransform of HAuCl43H2O (Solid line for experimental data, dotted line for the EXAFS Fit)

Figure S2 Experimental k3χ(k) function and the respective Fouriertransform of HAuCl43H2O in water(Solid line for experimental data, dotted line for the EXAFS Fit)

Figure S3 Experimental k3χ(k) function and the respective Fouriertransform of HAuCl43H2O in toluene(Solid line for experimental data, dotted line for the EXAFS Fit)

Amine Complexes:

Figure S4 Experimental k3χ(k) function and the respective Fouriertransform of HAuCl43H2O in toluene after theaddition of hexylamine (Solid line for experimental data, dotted line for the EXAFS Fit)

Figure S5 Experimental k3χ(k) function and the respective Fouriertransform of HAuCl43H2O in toluene after theaddition of dodecylamine (Solid line for experimental data, dotted line for the EXAFS Fit)

Figure S6 Experimental k3χ(k) function and the respective Fouriertransform of HAuCl43H2O in toluene after theaddition of octadecylamine (Solid line for experimental data, dotted line for the EXAFS Fit)

Spectra of the gold particles

Figure S7 Experimental k3χ(k) function and the respective Fouriertransform of hexylamine capped particles in toluene (Solid line for experimental data, dotted line for the EXAFS Fit)

Figure S8 Experimental k3χ(k) function and the respective Fouriertransform of dodecylamine capped particles in toluene (Solid line for experimental data, dotted line for the EXAFS Fit)

Figure S9 Experimental k3χ(k) function and the respective Fouriertransform of octadecylamine capped particlesin toluene (Solid line for experimental data, dotted line for the EXAFS Fit)

UV-VIS Spectra:

Figure S10Raw UV-Vis spectra of a solution of hexyl-(solid line), dodecyl-(dotted line) and octadecylamine (dashed line) capped nanoparticles in toluene

Size Distribution from TEM

Figure 11Particle size distribution of hexylamine capped particles

Figure 12Particle sizedistribution of dodecylamine capped particles

Figure 13Particle size distribution of octadecylamine capped particles