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	hartrees
Energy at 0K	-873.152860
Energy at 298.15K	-873.160342
HF Energy	-873.152860
Nuclear repulsion energy	192.231464

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2219	2133	147.36
2	A₁	2209	2124	3.53
3	A₁	2189	2105	61.51
4	A₁	944	908	63.46
5	A₁	920	885	0.61
6	A₁	881	847	164.89
7	A₁	560	539	4.45
8	A₁	384	369	0.44
9	A₁	95	91	1.12
10	A₂	2218	2132	0.00
11	A₂	935	899	0.00
12	A₂	703	676	0.00
13	A₂	414	398	0.00
14	A₂	62	59	0.00
15	B₁	2222	2137	220.72
16	B₁	2198	2113	23.49
17	B₁	940	904	63.55
18	B₁	589	566	8.18
19	B₁	310	298	14.10
20	B₁	83	80	0.04
21	B₂	2217	2131	48.84
22	B₂	2205	2120	117.90
23	B₂	937	901	29.76
24	B₂	868	834	294.31
25	B₂	710	682	270.75
26	B₂	461	443	4.62
27	B₂	429	413	14.52

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.896
Si2	0.000	1.943	-0.421
Si3	0.000	-1.943	-0.421
H4	1.203	0.000	1.777
H5	-1.203	0.000	1.777
H6	0.000	3.164	0.430
H7	0.000	-3.164	0.430
H8	1.207	1.976	-1.292
H9	-1.207	1.976	-1.292
H10	-1.207	-1.976	-1.292
H11	1.207	-1.976	-1.292

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3473	2.3473	1.4909	1.4909	3.1978	3.1978	3.1849	3.1849	3.1849	3.1849
Si2	2.3473		3.8858	3.1708	3.1708	1.4883	5.1770	1.4881	1.4881	4.1913	4.1913
Si3	2.3473	3.8858		3.1708	3.1708	5.1770	1.4883	4.1913	4.1913	1.4881	1.4881
H4	1.4909	3.1708	3.1708		2.4050	3.6428	3.6428	3.6498	4.3732	4.3732	3.6498
H5	1.4909	3.1708	3.1708	2.4050		3.6428	3.6428	4.3732	3.6498	3.6498	4.3732
H6	3.1978	1.4883	5.1770	3.6428	3.6428		6.3274	2.4149	2.4149	5.5526	5.5526
H7	3.1978	5.1770	1.4883	3.6428	3.6428	6.3274		5.5526	5.5526	2.4149	2.4149
H8	3.1849	1.4881	4.1913	3.6498	4.3732	2.4149	5.5526		2.4131	4.6296	3.9510
H9	3.1849	1.4881	4.1913	4.3732	3.6498	2.4149	5.5526	2.4131		3.9510	4.6296
H10	3.1849	4.1913	1.4881	4.3732	3.6498	5.5526	2.4149	4.6296	3.9510		2.4131
H11	3.1849	4.1913	1.4881	3.6498	4.3732	5.5526	2.4149	3.9510	4.6296	2.4131

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.976	S1	S2	H8	110.265
S1	S2	H9	110.265	S1	S3	H7	110.976
S1	S3	H10	110.265	S1	S3	H11	110.265
S2	S1	S3	111.731	S2	S1	H4	109.373
S2	S1	H5	109.373	S3	S1	H4	109.373
S3	S1	H5	109.373	H4	S1	H5	107.521
H6	S2	H8	108.457	H6	S2	H9	108.457
H7	S3	H10	108.457	H7	S3	H11	108.457
H8	S2	H9	108.348	H10	S3	H11	108.348

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3PW91/6-31G(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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Number	Element	Mulliken
1	Si	-0.092
2	Si	-0.078
3	Si	-0.078
4	H	0.034
5	H	0.034
6	H	0.030
7	H	0.030
8	H	0.030
9	H	0.030
10	H	0.030
11	H	0.030

<r²>	208.108
(<r²>)^1/2	14.426

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3PW91/6-31G(2df,p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)