H CO + . ▁ ▁The ▁mole c ule ▁is ▁made ▁by ▁the ▁following ▁reaction : ▁ ▁Ar H + ▁+ ▁N 2 ▁→ ▁. ▁ ▁Bis ( d init ro gen ) ▁arg on ▁c ation ▁The ▁arg on ▁ion ▁can ▁bond ▁two ▁mole cules ▁of ▁d init ro gen ▁( N 2 ) ▁to ▁yield ▁an ▁ion ic ▁complex ▁with ▁a ▁linear ▁shape ▁and ▁structure ▁N = N − − N = N . ▁The ▁N = N ▁bond ▁length ▁is ▁ 1 . 1 0 1 4   Å , ▁and ▁the ▁nit ro gen ▁to ▁arg on ▁bond ▁length ▁is ▁ 2 . 3 6 0 2   Å . ▁ 1 . 7   e V ▁of ▁energy ▁is ▁required ▁to ▁break ▁this ▁apart ▁to ▁N 2 ▁and ▁. ▁The ▁band ▁origin ▁of ▁an ▁inf ra red ▁band ▁due ▁to ▁ant is ym metric ▁v ibration ▁of ▁the ▁N = N ▁b onds ▁is ▁at ▁ 2 2 8 8 . 7 2 7 2   cm − 1 . ▁Comp ared ▁to ▁N 2 ▁it ▁is ▁red shift ed ▁ 4 1 . 9 9   cm − 1 . ▁The ▁ground ▁state ▁rot ational ▁constant ▁of ▁the ▁mole c ule ▁is ▁. ▁▁ ▁is ▁produced ▁by ▁a ▁su person ic ▁expansion ▁of ▁a ▁ 1 0 : 1 ▁mixture ▁of ▁arg on ▁with ▁nit ro gen ▁through ▁a ▁no zz le , ▁which ▁is ▁impact ed ▁by ▁an ▁electron ▁beam . ▁ ▁Ar N 2 O