21
ethyne and pentane dimer. Min dist:4.61595232545cm distance: 4.5
C	-0.1830646  -0.53288239  0.22310888
H	-0.50444724 -1.46661943  0.61345239
C	 0.18339704  0.53290644 -0.22280204
H	 0.5041148   1.46659538 -0.61375923
C	 2.09026904  3.79333414  4.06637379
H	 1.65561982  4.72403175  4.43216307
H	 2.13792936  3.85960464  2.97945278
H	 1.41089305  2.98125595  4.32165187
C	 3.47732056  3.57923698  4.6576915 
H	 3.89011409  2.63307104  4.30008752
H	 3.40776443  3.49572674  5.74443658
C	 4.43659496  4.70982188  4.31316394
H	 4.53787179  4.78305515  3.22616632
H	 4.00778927  5.65677416  4.65135528
C	 5.81297727  4.53622912  4.93972893
H	 6.25636978  3.60262376  4.58579367
H	 5.69704931  4.4337597   6.02085569
C	 6.74431761  5.70029618  4.62829112
H	 6.32506991  6.63731295  4.99589829
H	 7.72464966  5.56827248  5.08400446
H	 6.8874001   5.80559338  3.55288518
