21 O 0.98814 0.33167 0.57121 C 0.31071 1.56865 0.78347 C -1.16807 1.39151 0.45680 C -1.40289 1.10612 -1.01981 C 2.39988 0.41230 0.75889 C 2.80487 0.54291 2.22625 C 2.22330 -0.56405 3.09442 H 0.40500 1.86423 1.83315 H 0.75037 2.35085 0.15386 H -1.71327 2.29769 0.73801 H -1.57654 0.55900 1.04055 H -1.01696 1.92092 -1.64156 H -2.47515 1.00717 -1.21890 H -0.91517 0.17606 -1.33008 H 2.80905 1.23972 0.16832 H 2.82513 -0.51111 0.35130 H 2.47551 1.50870 2.62496 H 3.89833 0.52561 2.29931 H 1.13001 -0.55045 3.07914 H 2.54601 -0.43653 4.13249 H 2.56141 -1.54669 2.75185