12

   I     0.000000    0.000000    1.542040
   C     0.000000    0.000000   -0.553004
   C     0.000000    1.205567   -1.238203
   C     0.000000    1.199115   -2.625424
   C     0.000000    0.000000   -3.320969
   C     0.000000   -1.199115   -2.625424
   C     0.000000   -1.205567   -1.238203
   H     0.000000    2.142377   -0.697547
   H     0.000000    2.139678   -3.161229
   H     0.000000    0.000000   -4.403195
   H     0.000000   -2.139678   -3.161229
   H     0.000000   -2.142377   -0.697547
