18 O 1.30899 7.11597 0.70189 C 2.58191 7.09405 0.16962 C 3.24066 8.29696 -0.10098 Br 2.41468 9.96596 0.25692 C 4.51864 8.28576 -0.63843 C 5.13611 7.06295 -0.90308 Br 6.89063 7.14951 -1.64382 C 4.48436 5.83117 -0.63127 C 5.05605 4.55997 -0.87158 C 4.35880 3.39461 -0.57896 C 3.09532 3.52120 -0.05086 N 2.50885 4.70909 0.19477 C 3.17863 5.85078 -0.08411 H 1.04043 8.04375 0.81458 H 5.03249 9.22029 -0.85055 H 6.05480 4.46040 -1.28891 H 4.79272 2.41789 -0.75960 H 2.49749 2.65003 0.19956