Communication: Nanometer-sized structures can exhibit quite different
properties from those of their macroscopic forms. In this paper it is
reported that, under suitable conditions. well-defined nanoparticles o
f InSe and GaSe may be obtained from the vapor phase thermolysis of he
terocubane molecules. For example, InSe grown from [(EtMe(2)C)InSe](4)
consists of spheres with a mean diameter of 88 nm (standard deviation
s.d. = 30 nm), while GaSe grown front [((t)Bu)GaSe](4) produces pseud
o-spherical nanoparticles with a mean diameter of 42 nm (s.d. = 13 nm)
. Possible controlling mechanisms are discussed.