21
charge = 0
 C 2.011535 -0.727249 0.487793
 C 2.019936 0.053383 -0.816489
 C 2.349306 1.517462 -0.628638
 C 2.539150 2.413774 -1.867915
 C 3.674758 3.144378 -1.123508
 C 4.897608 3.587861 -1.889981
 C 3.772545 1.921819 -0.188627
 H 2.982945 -0.670647 0.986710
 H 1.784642 -1.783135 0.323177
 H 1.262891 -0.330546 1.179555
 H 2.750546 -0.386899 -1.506114
 H 1.044015 -0.036468 -1.308374
 H 1.616725 1.975415 0.046498
 H 1.688132 2.999570 -2.221772
 H 2.938051 1.833200 -2.706812
 H 3.255915 3.990181 -0.567761
 H 4.654950 4.379192 -2.605248
 H 5.329085 2.753071 -2.450547
 H 5.670851 3.973037 -1.218862
 H 3.964751 2.095882 0.871960
 H 4.510772 1.205106 -0.565845