21
ethyne and pentane dimer. Min dist:5.99405144082cm distance: 4.5
C	-0.14765045  0.56648153 -0.15669039
H	-0.40565356  1.55911273 -0.43171297
C	 0.1472767  -0.56651806  0.15694381
H	 0.40602731 -1.5590762   0.43145955
C	 6.94174272  3.77849196  4.39262099
H	 7.3265997   4.78523656  4.22748401
H	 7.04982825  3.55710416  5.4543957 
H	 7.57194628  3.08239516  3.8408218 
C	 5.48310895  3.68403326  3.96498652
H	 5.11860679  2.66516942  4.11519883
H	 5.39659577  3.88941025  2.89579867
C	 4.59088191  4.65557721  4.72469834
H	 4.64596006  4.43925087  5.7958441 
H	 4.97400272  5.67061837  4.59099637
C	 3.1380823   4.60972871  4.27257266
H	 2.7428623   3.60300779  4.42684572
H	 3.09812995  4.79676155  3.1973067 
C	 2.26903426  5.62307117  5.0056027 
H	 2.63843395  6.6359173   4.84253624
H	 1.23286874  5.58479426  4.67235846
H	 2.28131535  5.439432    6.07993219
