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	hartrees
Energy at 0K	-871.826918
Energy at 298.15K	-871.834674
HF Energy	-871.414809
Nuclear repulsion energy	193.610381

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2311	2172	120.28
2	A₁	2300	2161	12.03
3	A₁	2281	2144	60.54
4	A₁	989	930	69.75
5	A₁	962	904	0.78
6	A₁	923	867	194.98
7	A₁	585	549	5.16
8	A₁	404	380	0.43
9	A₁	96	90	1.27
10	A₂	2308	2170	0.00
11	A₂	982	923	0.00
12	A₂	729	686	0.00
13	A₂	425	399	0.00
14	A₂	86	81	0.00
15	B₁	2313	2174	199.66
16	B₁	2291	2153	21.83
17	B₁	986	927	76.24
18	B₁	615	578	8.92
19	B₁	316	297	17.38
20	B₁	106	100	0.04
21	B₂	2309	2171	59.57
22	B₂	2296	2158	96.71
23	B₂	982	923	38.54
24	B₂	909	854	325.95
25	B₂	737	693	261.75
26	B₂	480	452	5.75
27	B₂	444	417	18.26

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.911
Si2	0.000	1.917	-0.427
Si3	0.000	-1.917	-0.427
H4	1.198	0.000	1.778
H5	-1.198	0.000	1.778
H6	0.000	3.143	0.396
H7	0.000	-3.143	0.396
H8	1.199	1.922	-1.288
H9	-1.199	1.922	-1.288
H10	-1.199	-1.922	-1.288
H11	1.199	-1.922	-1.288

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3376	2.3376	1.4791	1.4791	3.1847	3.1847	3.1574	3.1574	3.1574	3.1574
Si2	2.3376		3.8342	3.1578	3.1578	1.4764	5.1264	1.4765	1.4765	4.1135	4.1135
Si3	2.3376	3.8342		3.1578	3.1578	5.1264	1.4764	4.1135	4.1135	1.4765	1.4765
H4	1.4791	3.1578	3.1578		2.3967	3.6362	3.6362	3.6189	4.3410	4.3410	3.6189
H5	1.4791	3.1578	3.1578	2.3967		3.6362	3.6362	4.3410	3.6189	3.6189	4.3410
H6	3.1847	1.4764	5.1264	3.6362	3.6362		6.2857	2.4011	2.4011	5.4709	5.4709
H7	3.1847	5.1264	1.4764	3.6362	3.6362	6.2857		5.4709	5.4709	2.4011	2.4011
H8	3.1574	1.4765	4.1135	3.6189	4.3410	2.4011	5.4709		2.3980	4.5312	3.8446
H9	3.1574	1.4765	4.1135	4.3410	3.6189	2.4011	5.4709	2.3980		3.8446	4.5312
H10	3.1574	4.1135	1.4765	4.3410	3.6189	5.4709	2.4011	4.5312	3.8446		2.3980
H11	3.1574	4.1135	1.4765	3.6189	4.3410	5.4709	2.4011	3.8446	4.5312	2.3980

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.218	S1	S2	H8	109.683
S1	S2	H9	109.683	S1	S3	H7	111.218
S1	S3	H10	109.683	S1	S3	H11	109.683
S2	S1	S3	110.192	S2	S1	H4	109.597
S2	S1	H5	109.597	S3	S1	H4	109.597
S3	S1	H5	109.597	H4	S1	H5	108.229
H6	S2	H8	108.805	H6	S2	H9	108.805
H7	S3	H10	108.805	H7	S3	H11	108.805
H8	S2	H9	108.597	H10	S3	H11	108.597

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2=FULL/6-31G(2df,p)

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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All results from a given calculation for Si3H8 (trisilane)

using model chemistry: MP2=FULL/6-31G(2df,p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)