new index	atom name	original index
1	C	14
2	C	15
3	C	13
4	C	8
5	C	9
6	C	16
7	C	12
8	C	7
9	C	1
10	C	17
11	C	5
12	C	3
13	C	10
14	Cl	6
15	Cl	4
16	O	18
17	O	19
18	O	11
19	O	2
20	H	24
21	H	25
22	H	26
23	H	27
24	H	28
25	H	22
26	H	23
27	H	20
28	H	21
29	H	29
30	H	30
31	H	31
