new index	atom name	original index
1	C	10
2	C	7
3	C	8
4	C	6
5	C	3
6	Cl	1
7	N	4
8	N	9
9	N	11
10	N	2
11	N	5
12	H	14
13	H	12
14	H	13
15	H	15
