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	hartrees
Energy at 0K	-872.981434
Energy at 298.15K	-872.988994
HF Energy	-872.981434
Nuclear repulsion energy	192.805030

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2212	2212	130.19
2	A₁	2203	2203	8.37
3	A₁	2183	2183	55.67
4	A₁	945	945	65.81
5	A₁	919	919	0.35
6	A₁	880	880	171.72
7	A₁	561	561	4.79
8	A₁	387	387	0.50
9	A₁	93	93	1.18
10	A₂	2210	2210	0.00
11	A₂	936	936	0.00
12	A₂	703	703	0.00
13	A₂	411	411	0.00
14	A₂	79	79	0.00
15	B₁	2215	2215	208.39
16	B₁	2192	2192	18.06
17	B₁	941	941	65.93
18	B₁	589	589	8.52
19	B₁	309	309	16.23
20	B₁	96	96	0.05
21	B₂	2211	2211	58.63
22	B₂	2199	2199	96.68
23	B₂	938	938	33.51
24	B₂	867	867	295.58
25	B₂	708	708	268.93
26	B₂	463	463	4.94
27	B₂	427	427	16.62

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.900
Si2	0.000	1.931	-0.423
Si3	0.000	-1.931	-0.423
H4	1.204	0.000	1.777
H5	-1.204	0.000	1.777
H6	0.000	3.156	0.420
H7	0.000	-3.156	0.420
H8	1.207	1.952	-1.291
H9	-1.207	1.952	-1.291
H10	-1.207	-1.952	-1.291
H11	1.207	-1.952	-1.291

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3408	2.3408	1.4897	1.4897	3.1925	3.1925	3.1731	3.1731	3.1731	3.1731
Si2	2.3408		3.8627	3.1653	3.1653	1.4868	5.1569	1.4869	1.4869	4.1583	4.1583
Si3	2.3408	3.8627		3.1653	3.1653	5.1569	1.4868	4.1583	4.1583	1.4869	1.4869
H4	1.4897	3.1653	3.1653		2.4083	3.6405	3.6405	3.6368	4.3632	4.3632	3.6368
H5	1.4897	3.1653	3.1653	2.4083		3.6405	3.6405	4.3632	3.6368	3.6368	4.3632
H6	3.1925	1.4868	5.1569	3.6405	3.6405		6.3124	2.4154	2.4154	5.5208	5.5208
H7	3.1925	5.1569	1.4868	3.6405	3.6405	6.3124		5.5208	5.5208	2.4154	2.4154
H8	3.1731	1.4869	4.1583	3.6368	4.3632	2.4154	5.5208		2.4132	4.5899	3.9043
H9	3.1731	1.4869	4.1583	4.3632	3.6368	2.4154	5.5208	2.4132		3.9043	4.5899
H10	3.1731	4.1583	1.4869	4.3632	3.6368	5.5208	2.4154	4.5899	3.9043		2.4132
H11	3.1731	4.1583	1.4869	3.6368	4.3632	5.5208	2.4154	3.9043	4.5899	2.4132

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.065	S1	S2	H8	109.977
S1	S2	H9	109.977	S1	S3	H7	111.065
S1	S3	H10	109.977	S1	S3	H11	109.977
S2	S1	S3	111.190	S2	S1	H4	109.432
S2	S1	H5	109.432	S3	S1	H4	109.432
S3	S1	H5	109.432	H4	S1	H5	107.860
H6	S2	H8	108.640	H6	S2	H9	108.640
H7	S3	H10	108.640	H7	S3	H11	108.640
H8	S2	H9	108.484	H10	S3	H11	108.484

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: HSEh1PBE/cc-pV(T+d)Z

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	0.052
2	Si	0.108
3	Si	0.108
4	H	-0.035
5	H	-0.035
6	H	-0.033
7	H	-0.033
8	H	-0.033
9	H	-0.033
10	H	-0.033
11	H	-0.033

<r²>	206.979
(<r²>)^1/2	14.387

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: HSEh1PBE/cc-pV(T+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)