18 comment:c C 0.6356850 1.0564350 0.5069720 C -2.2798369 0.1664350 -0.3392700 C -2.2059810 -1.1567520 -0.4220790 C 0.8175980 -1.9974110 0.4622980 C 1.3959171 -1.1395380 -0.3858510 C 1.2790329 0.3202730 -0.4135770 H -2.7574301 0.6616960 0.5043260 H -2.6145740 -1.8039510 0.3509550 H 0.9892560 -3.0664821 0.3775750 H 2.0304821 -1.5576000 -1.1678100 H -1.7241330 -1.6497800 -1.2614560 H -1.8686560 0.8092630 -1.1131530 H 0.1629420 -1.6743940 1.2684660 H 0.1684470 0.5776930 1.3649690 H 1.7533470 0.8322740 -1.2510210 N 0.5500800 2.4403269 0.5285570 H 0.7473190 2.8987000 -0.3509450 H -0.2723150 2.8162451 0.9771220