21
ethyne and pentane dimer. Min dist:4.99645871674cm distance: 4.75
C	 0.13562408 -0.58816364 -0.05406935
H	 0.37253341 -1.61886138 -0.1492317 
C	-0.13523879  0.58824062  0.0542949 
H	-0.3729187   1.6187844   0.14900615
C	 2.8563723   3.06934259  4.4605584 
H	 2.09295976  3.82456634  4.27146011
H	 3.18214186  2.6844784   3.49421771
H	 2.39122515  2.2497283   5.00650728
C	 4.02724713  3.66927906  5.22771844
H	 4.772692    2.8964529   5.42911543
H	 3.68628694  4.0315469   6.20000186
C	 4.6841656   4.82004253  4.47849861
H	 5.05723447  4.46126431  3.514506  
H	 3.92916262  5.57925663  4.25820154
C	 5.82404346  5.46411852  5.25502354
H	 6.5930285   4.71481429  5.4567442 
H	 5.44740357  5.79077756  6.22672855
C	 6.43668882  6.64576627  4.51487848
H	 5.68513365  7.41281486  4.32591979
H	 7.24832644  7.10158253  5.08023833
H	 6.83588772  6.334168    3.54968172
