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	hartrees
Energy at 0K	-872.937003
Energy at 298.15K	-872.944493
HF Energy	-872.937003
Nuclear repulsion energy	191.849252

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2201	2201	132.42
2	A₁	2188	2188	7.39
3	A₁	2172	2172	60.38
4	A₁	937	937	64.33
5	A₁	910	910	0.05
6	A₁	869	869	162.58
7	A₁	556	556	4.51
8	A₁	384	384	0.43
9	A₁	93	93	1.17
10	A₂	2200	2200	0.00
11	A₂	928	928	0.00
12	A₂	699	699	0.00
13	A₂	406	406	0.00
14	A₂	63	63	0.00
15	B₁	2205	2205	213.17
16	B₁	2183	2183	14.75
17	B₁	934	934	61.83
18	B₁	584	584	8.14
19	B₁	301	301	15.27
20	B₁	83	83	0.03
21	B₂	2200	2200	55.53
22	B₂	2184	2184	105.85
23	B₂	930	930	32.43
24	B₂	855	855	277.97
25	B₂	701	701	258.04
26	B₂	460	460	4.02
27	B₂	423	423	15.74

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.905
Si2	0.000	1.938	-0.425
Si3	0.000	-1.938	-0.425
H4	1.215	0.000	1.788
H5	-1.215	0.000	1.788
H6	0.000	3.172	0.427
H7	0.000	-3.172	0.427
H8	1.217	1.957	-1.300
H9	-1.217	1.957	-1.300
H10	-1.217	-1.957	-1.300
H11	1.217	-1.957	-1.300

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3503	2.3503	1.5016	1.5016	3.2077	3.2077	3.1893	3.1893	3.1893	3.1893
Si2	2.3503		3.8763	3.1822	3.1822	1.4990	5.1805	1.4990	1.4990	4.1738	4.1738
Si3	2.3503	3.8763		3.1822	3.1822	5.1805	1.4990	4.1738	4.1738	1.4990	1.4990
H4	1.5016	3.1822	3.1822		2.4293	3.6590	3.6590	3.6555	4.3904	4.3904	3.6555
H5	1.5016	3.1822	3.1822	2.4293		3.6590	3.6590	4.3904	3.6555	3.6555	4.3904
H6	3.2077	1.4990	5.1805	3.6590	3.6590		6.3438	2.4366	2.4366	5.5470	5.5470
H7	3.2077	5.1805	1.4990	3.6590	3.6590	6.3438		5.5470	5.5470	2.4366	2.4366
H8	3.1893	1.4990	4.1738	3.6555	4.3904	2.4366	5.5470		2.4338	4.6094	3.9144
H9	3.1893	1.4990	4.1738	4.3904	3.6555	2.4366	5.5470	2.4338		3.9144	4.6094
H10	3.1893	4.1738	1.4990	4.3904	3.6555	5.5470	2.4366	4.6094	3.9144		2.4338
H11	3.1893	4.1738	1.4990	3.6555	4.3904	5.5470	2.4366	3.9144	4.6094	2.4338

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.944	S1	S2	H8	109.921
S1	S2	H9	109.921	S1	S3	H7	110.944
S1	S3	H10	109.921	S1	S3	H11	109.921
S2	S1	S3	111.105	S2	S1	H4	109.425
S2	S1	H5	109.425	S3	S1	H4	109.425
S3	S1	H5	109.425	H4	S1	H5	107.975
H6	S2	H8	108.729	H6	S2	H9	108.729
H7	S3	H10	108.729	H7	S3	H11	108.729
H8	S2	H9	108.545	H10	S3	H11	108.545

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: HSEh1PBE/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	0.002
2	Si	0.100
3	Si	0.100
4	H	-0.018
5	H	-0.018
6	H	-0.024
7	H	-0.024
8	H	-0.029
9	H	-0.029
10	H	-0.029
11	H	-0.029

<r²>	208.511
(<r²>)^1/2	14.440

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: HSEh1PBE/cc-pCVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)