19
 comment:c
C -0.4742240 0.9963450 -0.7536170
C -0.4742280 0.9961840 0.7534910
C 1.2610199 1.0185220 1.3737299
C 1.9840280 -0.0571910 0.6712320
C 1.9841700 -0.0564310 -0.6714390
C 1.2610350 1.0198450 -1.3729870
H 1.5760270 2.0281429 1.0947690
H 2.3206539 -0.9275070 1.2293550
H 2.3210161 -0.9260920 -1.2304519
H 1.5754880 2.0292571 -1.0926340
H 1.2263210 0.9137630 2.4593301
H 1.2271440 0.9164440 -2.4587481
C -0.9398250 -0.3841160 -1.1379679
O -1.1383730 -0.8343670 -2.2267480
C -0.9390530 -0.3843900 1.1377389
O -1.1359720 -0.8349700 2.2266791
O -0.9944080 -1.1739290 -0.0001790
H -0.9915290 1.7995650 -1.2793740
H -0.9914100 1.7992910 1.2795250