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	hartrees
Energy at 0K	-873.378114
Energy at 298.15K	-873.385762
HF Energy	-873.378114
Nuclear repulsion energy	191.675112

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2214	2142	153.51
2	A₁	2205	2133	8.18
3	A₁	2182	2111	66.13
4	A₁	955	924	70.90
5	A₁	931	901	1.29
6	A₁	893	864	180.12
7	A₁	565	547	6.33
8	A₁	376	363	0.56
9	A₁	98	95	1.35
10	A₂	2212	2140	0.00
11	A₂	947	917	0.00
12	A₂	710	687	0.00
13	A₂	422	409	0.00
14	A₂	89	86	0.00
15	B₁	2218	2145	240.04
16	B₁	2191	2120	27.41
17	B₁	952	921	72.06
18	B₁	595	576	9.73
19	B₁	319	308	18.95
20	B₁	104	101	0.04
21	B₂	2213	2141	63.66
22	B₂	2200	2129	111.90
23	B₂	948	917	34.26
24	B₂	880	852	315.25
25	B₂	722	699	304.27
26	B₂	456	441	10.44
27	B₂	435	421	12.21

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.893
Si2	0.000	1.957	-0.420
Si3	0.000	-1.957	-0.420
H4	1.201	0.000	1.773
H5	-1.201	0.000	1.773
H6	0.000	3.170	0.438
H7	0.000	-3.170	0.438
H8	1.205	1.992	-1.289
H9	-1.205	1.992	-1.289
H10	-1.205	-1.992	-1.289
H11	1.205	-1.992	-1.289

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3562	2.3562	1.4890	1.4890	3.2023	3.2023	3.1905	3.1905	3.1905	3.1905
Si2	2.3562		3.9131	3.1749	3.1749	1.4858	5.1976	1.4858	1.4858	4.2190	4.2190
Si3	2.3562	3.9131		3.1749	3.1749	5.1976	1.4858	4.2190	4.2190	1.4858	1.4858
H4	1.4890	3.1749	3.1749		2.4020	3.6433	3.6433	3.6527	4.3739	4.3739	3.6527
H5	1.4890	3.1749	3.1749	2.4020		3.6433	3.6433	4.3739	3.6527	3.6527	4.3739
H6	3.2023	1.4858	5.1976	3.6433	3.6433		6.3396	2.4121	2.4121	5.5748	5.5748
H7	3.2023	5.1976	1.4858	3.6433	3.6433	6.3396		5.5748	5.5748	2.4121	2.4121
H8	3.1905	1.4858	4.2190	3.6527	4.3739	2.4121	5.5748		2.4100	4.6567	3.9846
H9	3.1905	1.4858	4.2190	4.3739	3.6527	2.4121	5.5748	2.4100		3.9846	4.6567
H10	3.1905	4.2190	1.4858	4.3739	3.6527	5.5748	2.4121	4.6567	3.9846		2.4100
H11	3.1905	4.2190	1.4858	3.6527	4.3739	5.5748	2.4121	3.9846	4.6567	2.4100

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.884	S1	S2	H8	110.222
S1	S2	H9	110.222	S1	S3	H7	110.884
S1	S3	H10	110.222	S1	S3	H11	110.222
S2	S1	S3	112.279	S2	S1	H4	109.231
S2	S1	H5	109.231	S3	S1	H4	109.231
S3	S1	H5	109.231	H4	S1	H5	107.520
H6	S2	H8	108.528	H6	S2	H9	108.528
H7	S3	H10	108.528	H7	S3	H11	108.528
H8	S2	H9	108.389	H10	S3	H11	108.389

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3LYP/aug-cc-pVTZ

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	0.409
2	Si	0.683
3	Si	0.683
4	H	-0.194
5	H	-0.194
6	H	-0.267
7	H	-0.267
8	H	-0.213
9	H	-0.213
10	H	-0.213
11	H	-0.213

<r²>	210.542
(<r²>)^1/2	14.510

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3LYP/aug-cc-pVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)