7

O 2.67782 0.87403 -1.73919
S 2.36117 0.56618 -0.34351
O 3.01411 1.49000 0.58480
O 2.80323 -0.81568 -0.14570
O 0.92821 0.70752 -0.08174
Na 3.31128 -1.10686 -2.19192
Na 1.18531 2.16472 1.44194