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. 2008 Jul 1;105(27):9157–9162. doi: 10.1073/pnas.0801001105

Fig. 4.

Fig. 4.

Superatom shell closures for 8 and 34 electrons in Au11 and Au39 clusters. The angular-momentum-projected local density of electron states (PLDOS) (projection up to the I symmetry, i.e., l = 6) for the gold core of phosphine-halide- and phosphine-thiolate-protected clusters is shown. (a) Au11(PH3)7Cl3. (b) Au11(PH3)7(SMe)3. (c) Au39(PH3)14Cl6−. The zero energy in each figure corresponds to the middle of the HOMO–LUMO gap (dashed line). Shell-closing electron numbers are indicated. Each individual electron state is displayed by a Gaussian smoothing of 0.07 eV.