21
ethyne and pentane dimer. Min dist:5.57221429339cm distance: 5.25
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	 3.29150208  4.86504613  3.66560483
H	 3.69858307  5.4846208   2.86602238
H	 3.52883377  3.8279082   3.42879449
H	 2.20752536  4.97020252  3.65437012
C	 3.88592569  5.26377145  5.0098834 
H	 3.45227828  4.65017556  5.80295282
H	 3.62182798  6.29838364  5.2393543 
C	 5.40168496  5.12671159  5.0384704 
H	 5.67716998  4.08659482  4.83985256
H	 5.82897121  5.72313868  4.22812016
C	 6.0160723   5.57035042  6.35864432
H	 5.61035339  4.96075139  7.16936451
H	 5.70971745  6.59886775  6.56130948
C	 7.53610035  5.47588039  6.3531112 
H	 7.9572405   6.09743834  5.56240849
H	 7.96580951  5.79891532  7.3002935 
H	 7.86040413  4.451243    6.17144307
