18 comment:c C -1.0270460 0.6450600 -0.6418730 C -1.0334229 0.6420190 1.4622520 C 0.3183730 0.6406720 1.9422640 C 1.6054500 0.6468720 0.3025600 C 1.1406800 -0.4014090 -0.5268970 C -0.1518030 -0.4183800 -0.9908400 H -2.0678639 0.5701780 -0.9600180 H -1.6115910 1.5558680 1.5868750 H 0.6867210 1.5546250 2.4055669 H 2.6134169 0.5627090 0.7075910 H 1.7036780 -1.3292160 -0.5972250 H 0.6838550 -0.2649930 2.4196939 H -1.6193420 -0.2634050 1.6032569 H 1.3399330 1.6702540 0.0437720 H -0.6422720 1.6616220 -0.6774020 N -0.6380130 -1.6652110 -1.5365790 H -1.5131550 -1.9190660 -1.0840729 H -0.8568890 -1.5556990 -2.5234261