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