21

C   -0.606189355   0.055874063   0.589004905
H   -1.668036669   0.055776239   0.589011619
C    0.605848727   0.055540867   0.589266243
H    1.667678172   0.054863283   0.589727942
C   -2.530403907  -0.347456003   4.218514159
H   -2.538770536  -1.009409538   3.352103570
H   -2.582322237  -0.973725218   5.109104933
H   -3.432818529   0.261448055   4.185752534
C   -1.269871781   0.507144715   4.229583429
H   -1.286523448   1.180143938   5.089992549
H   -1.244604793   1.141360724   3.340787320
C    0.000046839  -0.331186287   4.270038763
H    0.000049571  -0.948975934   5.173100161
H    0.000113933  -1.019485443   3.420797574
C    1.269945397   0.507189784   4.229670304
H    1.286573222   1.180156898   5.090091608
H    1.244800479   1.141362101   3.340869111
C    2.530467890  -0.347446796   4.218723890
H    2.538847656  -1.009429550   3.352344814
H    3.432846660   0.261484545   4.185997527
H    2.582285120  -0.973661533   5.109357435