19
 comment:c
C -0.7894180 -0.2822080 -1.6677001
C -0.9951140 -0.3222310 1.5675160
C 1.6685890 -0.2613880 -1.1905200
C 0.4132640 -0.8590300 -1.6778060
H 2.5602200 -0.8739620 -1.3197510
H 0.4993230 -1.8696940 -2.0756650
H -1.2439070 -1.3576770 1.3345920
H -0.9418130 0.7283590 -1.2962630
C 1.7994150 0.9320770 -0.6088340
H 2.7682841 1.2929950 -0.2752330
H 0.9517750 1.5925649 -0.4435100
C 0.2407220 -0.0283890 1.9582220
H 1.0110500 -0.7892770 2.0447121
H 0.5346520 0.9921920 2.2001460
C -2.1070650 0.6764880 1.4261450
H -1.7351069 1.7015370 1.5322980
H -2.6007431 0.5879790 0.4513740
H -2.8796699 0.5176700 2.1889260
H -1.6674041 -0.8000290 -2.0440249