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	hartrees
Energy at 0K	-873.341719
Energy at 298.15K	-873.349098
HF Energy	-873.341719
Nuclear repulsion energy	191.440096

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2224	2224	151.09
2	A₁	2214	2214	7.67
3	A₁	2194	2194	67.16
4	A₁	952	952	73.71
5	A₁	925	925	0.01
6	A₁	885	885	172.05
7	A₁	558	558	5.07
8	A₁	378	378	0.44
9	A₁	93	93	1.23
10	A₂	2222	2222	0.00
11	A₂	941	941	0.00
12	A₂	704	704	0.00
13	A₂	405	405	0.00
14	A₂	22	22	0.00
15	B₁	2227	2227	234.81
16	B₁	2203	2203	23.07
17	B₁	946	946	69.14
18	B₁	588	588	8.66
19	B₁	299	299	16.30
20	B₁	56	56	0.06
21	B₂	2222	2222	59.66
22	B₂	2209	2209	118.91
23	B₂	946	946	31.86
24	B₂	870	870	317.01
25	B₂	708	708	267.91
26	B₂	456	456	4.76
27	B₂	422	422	16.78

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.897
Si2	0.000	1.953	-0.422
Si3	0.000	-1.953	-0.422
H4	1.208	0.000	1.780
H5	-1.208	0.000	1.780
H6	0.000	3.175	0.437
H7	0.000	-3.175	0.437
H8	1.212	1.984	-1.295
H9	-1.212	1.984	-1.295
H10	-1.212	-1.984	-1.295
H11	1.212	-1.984	-1.295

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3569	2.3569	1.4966	1.4966	3.2083	3.2083	3.1954	3.1954	3.1954	3.1954
Si2	2.3569		3.9062	3.1819	3.1819	1.4939	5.1997	1.4938	1.4938	4.2111	4.2111
Si3	2.3569	3.9062		3.1819	3.1819	5.1997	1.4939	4.2111	4.2111	1.4938	1.4938
H4	1.4966	3.1819	3.1819		2.4169	3.6532	3.6532	3.6595	4.3875	4.3875	3.6595
H5	1.4966	3.1819	3.1819	2.4169		3.6532	3.6532	4.3875	3.6595	3.6595	4.3875
H6	3.2083	1.4939	5.1997	3.6532	3.6532		6.3503	2.4261	2.4261	5.5757	5.5757
H7	3.2083	5.1997	1.4939	3.6532	3.6532	6.3503		5.5757	5.5757	2.4261	2.4261
H8	3.1954	1.4938	4.2111	3.6595	4.3875	2.4261	5.5757		2.4241	4.6504	3.9686
H9	3.1954	1.4938	4.2111	4.3875	3.6595	2.4261	5.5757	2.4241		3.9686	4.6504
H10	3.1954	4.2111	1.4938	4.3875	3.6595	5.5757	2.4261	4.6504	3.9686		2.4241
H11	3.1954	4.2111	1.4938	3.6595	4.3875	5.5757	2.4261	3.9686	4.6504	2.4241

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.854	S1	S2	H8	110.138
S1	S2	H9	110.138	S1	S3	H7	110.854
S1	S3	H10	110.138	S1	S3	H11	110.138
S2	S1	S3	111.925	S2	S1	H4	109.282
S2	S1	H5	109.282	S3	S1	H4	109.282
S3	S1	H5	109.282	H4	S1	H5	107.691
H6	S2	H8	108.593	H6	S2	H9	108.593
H7	S3	H10	108.593	H7	S3	H11	108.593
H8	S2	H9	108.464	H10	S3	H11	108.464

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: TPSSh/cc-pCVDZ

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Number	Element	Mulliken
1	Si	0.027
2	Si	0.128
3	Si	0.128
4	H	-0.029
5	H	-0.029
6	H	-0.035
7	H	-0.035
8	H	-0.039
9	H	-0.039
10	H	-0.039
11	H	-0.039

<r²>	210.201
(<r²>)^1/2	14.498

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: TPSSh/cc-pCVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)