frank off; background white;
connect (all) (all) DELETE;
connect 0.1 @maxlen (carbon) (hydrogen) ModifyOrCreate;
connect 0.1 @maxlen (oxygen) (oxygen) ModifyOrCreate;
connect 0.1 @maxlen (carbon) (carbon) ModifyOrCreate;
connect 0.1 @maxlen (carbon) (oxygen) ModifyOrCreate;
connect 0.1 @maxlen (carbon) (nitrogen) ModifyOrCreate;
connect 0.1 @maxlen (oxygen) (hydrogen) ModifyOrCreate;
connect 0.1 1.0 (hydrogen) (hydrogen) ModifyOrCreate;
select all; spacefill @atomsize%; color bonds [220,220,220]; wireframe @bondsize;