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	hartrees
Energy at 0K	-16.417951
Energy at 298.15K	-16.425507
HF Energy	-16.417951
Nuclear repulsion energy	34.041134

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2202	2135	189.37
2	A₁	2184	2117	9.25
3	A₁	2166	2099	95.38
4	A₁	947	918	70.86
5	A₁	925	897	9.11
6	A₁	888	861	198.50
7	A₁	562	545	7.37
8	A₁	374	362	0.77
9	A₁	96	93	1.53
10	A₂	2200	2132	0.00
11	A₂	937	908	0.00
12	A₂	707	685	0.00
13	A₂	418	405	0.00
14	A₂	84	82	0.00
15	B₁	2205	2138	316.99
16	B₁	2181	2114	33.25
17	B₁	942	913	78.63
18	B₁	592	574	11.14
19	B₁	316	306	22.08
20	B₁	100	97	0.07
21	B₂	2201	2133	81.88
22	B₂	2178	2112	135.10
23	B₂	938	910	34.81
24	B₂	878	851	327.17
25	B₂	720	698	354.53
26	B₂	454	440	8.61
27	B₂	433	419	16.18

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.898
Si2	0.000	1.971	-0.423
Si3	0.000	-1.971	-0.423
H4	1.212	0.000	1.789
H5	-1.212	0.000	1.789
H6	0.000	3.198	0.442
H7	0.000	-3.198	0.442
H8	1.216	2.010	-1.302
H9	-1.216	2.010	-1.302
H10	-1.216	-2.010	-1.302
H11	1.216	-2.010	-1.302

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3730	2.3730	1.5041	1.5041	3.2303	3.2303	3.2189	3.2189	3.2189	3.2189
Si2	2.3730		3.9424	3.2011	3.2011	1.5011	5.2411	1.5012	1.5012	4.2550	4.2550
Si3	2.3730	3.9424		3.2011	3.2011	5.2411	1.5011	4.2550	4.2550	1.5012	1.5012
H4	1.5041	3.2011	3.2011		2.4239	3.6756	3.6756	3.6872	4.4150	4.4150	3.6872
H5	1.5041	3.2011	3.2011	2.4239		3.6756	3.6756	4.4150	3.6872	3.6872	4.4150
H6	3.2303	1.5011	5.2411	3.6756	3.6756		6.3960	2.4355	2.4355	5.6256	5.6256
H7	3.2303	5.2411	1.5011	3.6756	3.6756	6.3960		5.6256	5.6256	2.4355	2.4355
H8	3.2189	1.5012	4.2550	3.6872	4.4150	2.4355	5.6256		2.4327	4.6993	4.0207
H9	3.2189	1.5012	4.2550	4.4150	3.6872	2.4355	5.6256	2.4327		4.0207	4.6993
H10	3.2189	4.2550	1.5012	4.4150	3.6872	5.6256	2.4355	4.6993	4.0207		2.4327
H11	3.2189	4.2550	1.5012	3.6872	4.4150	5.6256	2.4355	4.0207	4.6993	2.4327

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.978	S1	S2	H8	110.341
S1	S2	H9	110.341	S1	S3	H7	110.978
S1	S3	H10	110.341	S1	S3	H11	110.341
S2	S1	S3	112.339	S2	S1	H4	109.253
S2	S1	H5	109.253	S3	S1	H4	109.253
S3	S1	H5	109.253	H4	S1	H5	107.364
H6	S2	H8	108.429	H6	S2	H9	108.429
H7	S3	H10	108.429	H7	S3	H11	108.429
H8	S2	H9	108.243	H10	S3	H11	108.243

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3LYP/CEP-121G*

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	0.124
2	Si	0.127
3	Si	0.127
4	H	-0.054
5	H	-0.054
6	H	-0.041
7	H	-0.041
8	H	-0.047
9	H	-0.047
10	H	-0.047
11	H	-0.047

<r²>	121.761
(<r²>)^1/2	11.035

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3LYP/CEP-121G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)