11 11 -5.5580 1.4732 0.0000 C -4.8436 1.8857 0.0000 C -4.1291 1.4732 0.0000 C -4.8436 2.7107 0.0000 C -4.1291 0.6482 0.0000 C -5.5580 0.6482 0.0000 C -3.4146 0.2357 0.0000 C -4.8435 0.2357 0.0000 O -3.4146 -0.5893 0.0000 C -2.7002 -1.0018 0.0000 O -4.1291 -1.0018 0.0000 C 1 2 1 1 2 3 1 1 2 4 1 1 3 5 1 1 1 6 1 1 5 7 1 1 6 8 1 1 5 8 1 1 7 9 1 1 9 10 2 2 9 11 1 1