Looking for a molecule structure generating program

[Soomi Pyo]

	Hi!

	I have some problem to generate a big unit molecule structure(6 x
6 x 6). With simple X-ray structure, you can make a simple program.
However, more complicate the structure, more difficult to design. I have a
simple XP(from Siemens) program but it doesn't generate a big unit(I need
with Hydrogen, too).

	If somebody has any information, please give me an idea. Thank
you.

							Soomi.