20 N 0.66972 1.22600 -0.24534 C -0.72093 1.22097 0.23209 C -1.42648 2.47354 -0.28387 C -1.46000 -0.04332 -0.22831 C -0.72261 -1.30582 0.21137 C 0.73904 -1.25206 -0.21962 C 1.39885 0.04868 0.23282 H 0.67380 1.22683 -1.26566 H -0.72067 1.26327 1.32836 H -1.45624 2.49948 -1.37927 H -0.91798 3.38070 0.06198 H -2.45875 2.51241 0.08091 H -2.47692 -0.05499 0.18197 H -1.55858 -0.04650 -1.32206 H -0.77894 -1.39954 1.30282 H -1.20773 -2.19164 -0.21334 H 1.28024 -2.10762 0.19857 H 0.80144 -1.33588 -1.31195 H 1.47304 0.07795 1.32662 H 2.42427 0.08951 -0.15079