18 comment:c C -1.0167691 0.6563520 -1.0023310 C -1.1294090 0.6572640 1.9046810 C 0.1256260 0.6594300 2.3380010 C 1.8387960 0.6300920 -0.0401480 C 1.1929340 -0.4048350 -0.5785720 C -0.2013500 -0.4041030 -1.0662659 H -2.0397079 0.6056130 -1.3673720 H -1.6853310 1.5789360 1.7479880 H 0.6576490 1.5832430 2.5559001 H 2.8494940 0.5222080 0.3434290 H 1.6877470 -1.3751090 -0.6170380 H 0.6752830 -0.2635510 2.4982109 H -1.6581570 -0.2671930 1.6912800 H 1.3943150 1.6183480 0.0332690 H -0.6942390 1.5975800 -0.5761620 N -0.6534310 -1.6745501 -1.4971290 H -1.6343240 -1.6566330 -1.7508320 H -0.1164530 -2.0397129 -2.2766490