21

C         -0.88360        1.23430        6.24790
C         -0.09990        0.84700        4.99220
C         -0.77250        1.45970        3.76200
C          0.01110        1.07240        2.50630
H          0.10370       -0.01250        2.45600
C         -0.72880        1.57920        1.26680
C         -0.01270        1.08580        0.00800
O          1.31290        1.65960        2.55730
H         -0.90000        2.31970        6.34560
H         -1.90470        0.86120        6.16840
H         -0.40440        0.79780        7.12420
H         -0.08350       -0.23850        4.89450
H          0.92110        1.22010        5.07160
H         -0.78890        2.54520        3.85970
H         -1.79360        1.08660        3.68260
H         -0.74360        2.66910        1.27280
H         -1.75140        1.20200        1.27460
H          0.00210       -0.00410        0.00200
H          1.00990        1.46310        0.00030
H         -0.53990        1.44690       -0.87510
H          1.30720        2.62550        2.60340