18
 comment:c
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C -1.8819230 0.1781370 -0.2836110
C -1.8756011 -1.1486700 -0.3609260
C 0.5673030 -1.9629970 0.4163520
C 1.2113310 -1.1463290 -0.4290130
C 1.2272710 0.3079750 -0.3972400
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H -1.5959740 -1.6665030 -1.2723800
H -1.6059840 0.8025550 -1.1278470
H 0.0813780 -1.6049581 1.3188720
H 0.1104010 0.5697040 1.3776550
H 1.7036060 0.8182350 -1.2343130
N 0.4073110 2.4208939 0.4923410
H 0.5512010 2.8624060 -0.4053880
H -0.4108830 2.7752531 0.9646900