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	hartrees
Energy at 0K	-872.787163
Energy at 298.15K	-872.794391
HF Energy	-872.787163
Nuclear repulsion energy	190.735155

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2147	2135	123.58
2	A₁	2130	2118	5.58
3	A₁	2115	2103	55.17
4	A₁	903	898	56.15
5	A₁	876	871	0.88
6	A₁	834	829	137.74
7	A₁	534	531	3.51
8	A₁	371	369	0.36
9	A₁	90	89	0.96
10	A₂	2147	2134	0.00
11	A₂	894	889	0.00
12	A₂	675	671	0.00
13	A₂	393	391	0.00
14	A₂	55	55	0.00
15	B₁	2152	2139	194.91
16	B₁	2129	2117	15.59
17	B₁	900	895	51.16
18	B₁	562	558	6.98
19	B₁	291	290	12.07
20	B₁	75	74	0.04
21	B₂	2146	2133	46.03
22	B₂	2126	2114	103.80
23	B₂	898	892	27.24
24	B₂	819	814	252.40
25	B₂	673	669	244.96
26	B₂	446	444	3.14
27	B₂	408	405	12.84

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.903
Si2	0.000	1.952	-0.425
Si3	0.000	-1.952	-0.425
H4	1.222	0.000	1.796
H5	-1.222	0.000	1.796
H6	0.000	3.191	0.439
H7	0.000	-3.191	0.439
H8	1.225	1.979	-1.307
H9	-1.225	1.979	-1.307
H10	-1.225	-1.979	-1.307
H11	1.225	-1.979	-1.307

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3606	2.3606	1.5132	1.5132	3.2250	3.2250	3.2098	3.2098	3.2098	3.2098
Si2	2.3606		3.9036	3.1988	3.1988	1.5105	5.2151	1.5103	1.5103	4.2108	4.2108
Si3	2.3606	3.9036		3.1988	3.1988	5.2151	1.5105	4.2108	4.2108	1.5103	1.5103
H4	1.5132	3.1988	3.1988		2.4438	3.6769	3.6769	3.6802	4.4196	4.4196	3.6802
H5	1.5132	3.1988	3.1988	2.4438		3.6769	3.6769	4.4196	3.6802	3.6802	4.4196
H6	3.2250	1.5105	5.2151	3.6769	3.6769		6.3828	2.4533	2.4533	5.5930	5.5930
H7	3.2250	5.2151	1.5105	3.6769	3.6769	6.3828		5.5930	5.5930	2.4533	2.4533
H8	3.2098	1.5103	4.2108	3.6802	4.4196	2.4533	5.5930		2.4507	4.6552	3.9579
H9	3.2098	1.5103	4.2108	4.4196	3.6802	2.4533	5.5930	2.4507		3.9579	4.6552
H10	3.2098	4.2108	1.5103	4.4196	3.6802	5.5930	2.4533	4.6552	3.9579		2.4507
H11	3.2098	4.2108	1.5103	3.6802	4.4196	5.5930	2.4533	3.9579	4.6552	2.4507

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.923	S1	S2	H8	110.092
S1	S2	H9	110.092	S1	S3	H7	110.923
S1	S3	H10	110.092	S1	S3	H11	110.092
S2	S1	S3	111.547	S2	S1	H4	109.377
S2	S1	H5	109.377	S3	S1	H4	109.377
S3	S1	H5	109.377	H4	S1	H5	107.705
H6	S2	H8	108.609	H6	S2	H9	108.609
H7	S3	H10	108.609	H7	S3	H11	108.609
H8	S2	H9	108.454	H10	S3	H11	108.454

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: PBEPBE/cc-pVDZ

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	-0.009
2	Si	0.055
3	Si	0.055
4	H	-0.008
5	H	-0.008
6	H	-0.012
7	H	-0.012
8	H	-0.015
9	H	-0.015
10	H	-0.015
11	H	-0.015

<r²>	210.714
(<r²>)^1/2	14.516

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: PBEPBE/cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)