Atomic charges of halogen containing molecules



 Dear Netters:
 	Is there anyone who has experiences on calculating atomic charges
 of halogen(F, Cl ..) containing molecules? I've performed MOPAC6.0/AM1
 calculations on those molecules and the results are as follows.
    |          Atomic Charges.
    C1=O       C1  0.302
    |           O -0.314
   HC2-X       C2 -0.057
    |       X, Cl -0.075
 I expect that the clorine atom should have some more negative charges.
 Isn't it(Cl -0.075) too small?
 Jai
 jkshin;at;radon.sait.samsung.co.kr