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	hartrees
Energy at 0K	-872.338494
Energy at 298.15K	-872.346246
HF Energy	-871.475052
Nuclear repulsion energy	193.821359

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2281	2150	126.58
2	A₁	2270	2140	22.59
3	A₁	2250	2121	65.96
4	A₁	981	925	73.07
5	A₁	954	899	1.05
6	A₁	913	861	204.53
7	A₁	580	547	5.96
8	A₁	401	378	0.55
9	A₁	94	89	1.38
10	A₂	2277	2146	0.00
11	A₂	974	918	0.00
12	A₂	723	681	0.00
13	A₂	422	398	0.00
14	A₂	91	86	0.00
15	B₁	2282	2151	231.62
16	B₁	2260	2130	21.26
17	B₁	978	922	79.14
18	B₁	609	574	9.78
19	B₁	320	302	20.97
20	B₁	109	102	0.10
21	B₂	2279	2149	86.91
22	B₂	2266	2136	87.56
23	B₂	974	918	40.98
24	B₂	900	849	331.79
25	B₂	728	686	285.84
26	B₂	477	450	7.68
27	B₂	440	415	21.34

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.909
Si2	0.000	1.915	-0.426
Si3	0.000	-1.915	-0.426
H4	1.198	0.000	1.777
H5	-1.198	0.000	1.777
H6	0.000	3.141	0.396
H7	0.000	-3.141	0.396
H8	1.199	1.920	-1.287
H9	-1.199	1.920	-1.287
H10	-1.199	-1.920	-1.287
H11	1.199	-1.920	-1.287

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3338	2.3338	1.4796	1.4796	3.1823	3.1823	3.1538	3.1538	3.1538	3.1538
Si2	2.3338		3.8291	3.1547	3.1547	1.4762	5.1217	1.4767	1.4767	4.1087	4.1087
Si3	2.3338	3.8291		3.1547	3.1547	5.1217	1.4762	4.1087	4.1087	1.4767	1.4767
H4	1.4796	3.1547	3.1547		2.3970	3.6339	3.6339	3.6157	4.3384	4.3384	3.6157
H5	1.4796	3.1547	3.1547	2.3970		3.6339	3.6339	4.3384	3.6157	3.6157	4.3384
H6	3.1823	1.4762	5.1217	3.6339	3.6339		6.2814	2.4008	2.4008	5.4662	5.4662
H7	3.1823	5.1217	1.4762	3.6339	3.6339	6.2814		5.4662	5.4662	2.4008	2.4008
H8	3.1538	1.4767	4.1087	3.6157	4.3384	2.4008	5.4662		2.3984	4.5268	3.8392
H9	3.1538	1.4767	4.1087	4.3384	3.6157	2.4008	5.4662	2.3984		3.8392	4.5268
H10	3.1538	4.1087	1.4767	4.3384	3.6157	5.4662	2.4008	4.5268	3.8392		2.3984
H11	3.1538	4.1087	1.4767	3.6157	4.3384	5.4662	2.4008	3.8392	4.5268	2.3984

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.283	S1	S2	H8	109.664
S1	S2	H9	109.664	S1	S3	H7	111.283
S1	S3	H10	109.664	S1	S3	H11	109.664
S2	S1	S3	110.241	S2	S1	H4	109.594
S2	S1	H5	109.594	S3	S1	H4	109.594
S3	S1	H5	109.594	H4	S1	H5	108.192
H6	S2	H8	108.790	H6	S2	H9	108.790
H7	S3	H10	108.790	H7	S3	H11	108.790
H8	S2	H9	108.598	H10	S3	H11	108.598

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)