16

 S         0.845916209405     -0.266720922811      1.552700007253
 S         0.845917142892     -0.266723265742     -1.552700687468
 C        -0.876704475807      0.098673483817      1.908542869739
 C        -0.876703327774      0.098670615714     -1.908545126246
 O         1.273487288647     -1.372003433648     -2.399399710716
 O         1.570164938257      0.986301022746     -1.489806998889
 O         1.273485857577     -1.371999809058      2.399400954862
 O         1.570164032755      0.986303276023      1.489804857063
 H         1.165103037982     -1.915321469739      0.000000999802
 H        -0.898236329879      0.500261958749     -2.921196137165
 H        -1.447190978892     -0.824740185809     -1.840961652279
 H        -1.227489925475      0.848065788594     -1.201661279841
 H        -1.227490656004      0.848067596351      1.201657692006
 H        -1.447192082835     -0.824737421369      1.840960439805
 H        -0.898238083208      0.500266343867      2.921193266213
 N         0.728100652358     -0.996860707685      0.000000175860