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