Four [(CdSe)(13)(RNH2)(13)] derivatives (R = n-propyl, n-pentyl, n-octyl, and oleyl) are prepared by reaction of Cd(OAc)(2)center dot 2H(2)O and selenourea in the corresponding primary-amine solvent. Nanoclusters grow in spontaneously formed amine-bilayer templates and are characterized by elemental analysis, IR spectroscopy, UV-vis spectroscopy, TEM, and low-angle XRD. Derivative [(CdSe)(13)(n-propylamine)(13)] is isolated as a yellowish-white solid (MP 98 degrees C) on the gram scale. These compounds are the first derivatives of magic-size CdSe nanoclusters to be isolated in purity.