19
 comment:c
C -0.8665240 -0.2775060 -1.0103260
C -0.8514370 -0.2760950 0.8071770
C 1.5475219 -0.3155860 -1.0547661
C 0.4160000 -0.8314680 -1.5433270
H 2.5199029 -0.7498330 -1.2792500
H 0.4175140 -1.7109470 -2.1850431
H -1.0527540 -1.3133260 1.0974060
H -0.9755880 0.7879210 -1.2539840
C 1.4249560 0.7403970 0.0039110
H 2.4027140 1.0985560 0.3425530
H 0.8796460 1.6144210 -0.3787390
C 0.5606930 0.1676010 1.2660280
H 1.1190770 -0.6631940 1.7116580
H 0.4976670 0.9598860 2.0236211
C -1.9943910 0.6368060 1.2886471
H -1.7351400 1.6906270 1.1260550
H -2.9053290 0.4301130 0.7150690
H -2.2347391 0.5136290 2.3519051
H -1.7531370 -0.8015430 -1.3818600