21 charge = 0 C 1.194323 2.059259 -0.914924 C 2.709864 1.954177 -0.909949 C 3.196495 0.549089 -1.263730 C 4.690258 0.382084 -1.224610 C 5.273441 -0.348823 -0.278616 C 5.456844 1.082938 -2.311403 C 6.962168 0.900773 -2.303215 H 0.862374 3.068100 -0.659159 H 0.748853 1.369698 -0.192324 H 0.784245 1.813879 -1.898785 H 3.099261 2.224110 0.077376 H 3.126159 2.681634 -1.613844 H 2.829534 0.294823 -2.267143 H 2.737962 -0.166363 -0.573837 H 4.684071 -0.849621 0.482077 H 6.347811 -0.476516 -0.224722 H 5.221410 2.153414 -2.268567 H 5.051157 0.746707 -3.275152 H 7.406482 1.282824 -1.380954 H 7.417546 1.438162 -3.137754 H 7.237532 -0.152548 -2.395464