21
ethyne and pentane dimer. Min dist:4.75170358567cm distance: 4.75
C	-0.52271118  0.19278545 -0.2384547 
H	-1.4389861   0.52988115 -0.65597894
C	 0.52292627 -0.19241657  0.23830333
H	 1.43877102 -0.53025003  0.65613031
C	 2.79150208  4.36504613  3.16560483
H	 3.19858307  4.9846208   2.36602238
H	 3.02883377  3.3279082   2.92879449
H	 1.70752536  4.47020252  3.15437012
C	 3.38592569  4.76377145  4.5098834 
H	 2.95227828  4.15017556  5.30295282
H	 3.12182798  5.79838364  4.7393543 
C	 4.90168496  4.62671159  4.5384704 
H	 5.17716998  3.58659482  4.33985256
H	 5.32897121  5.22313868  3.72812016
C	 5.5160723   5.07035042  5.85864432
H	 5.11035339  4.46075139  6.66936451
H	 5.20971745  6.09886775  6.06130948
C	 7.03610035  4.97588039  5.8531112 
H	 7.4572405   5.59743834  5.06240849
H	 7.46580951  5.29891532  6.8002935 
H	 7.36040413  3.951243    5.67144307
