21

O          2.15434       -1.32250        1.41450
H          1.31524       -0.90320        1.11130
H          2.01794       -2.26820        1.27690
O          1.68104        1.42490       -1.27180
H          1.79084        2.38180       -1.21620
H          2.54334        1.04920       -0.98170
O          3.84724        0.06080       -0.24700
H          4.59054        0.42360        0.24950
H          3.35524       -0.49660        0.39970
O         -0.02386       -0.00710        0.33920
H          0.49234        0.58420       -0.25590
H         -0.53226       -0.59570       -0.26660
O         -3.85936       -0.14050       -0.37470
H         -4.36976        0.53450       -0.83820
H         -3.39306        0.34810        0.34200
O         -2.25326        1.16370        1.44210
H         -1.38166        0.80570        1.15210
H         -2.28866        0.99940        2.39240
O         -1.65226       -1.50810       -1.29080
H         -2.51316       -1.05900       -1.13050
H         -1.52076       -1.47500       -2.24620