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	hartrees
Energy at 0K	-873.229877
Energy at 298.15K
HF Energy	-873.229877
Nuclear repulsion energy	190.280743

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2140	2140	145.06
2	A₁	2126	2126	2.94
3	A₁	2106	2106	60.63
4	A₁	928	928	66.86
5	A₁	902	902	0.70
6	A₁	866	866	161.39
7	A₁	548	548	5.08
8	A₁	361	361	0.44
9	A₁	95	95	1.12
10	A₂	2140	2140	0.00
11	A₂	919	919	0.00
12	A₂	691	691	0.00
13	A₂	408	408	0.00
14	A₂	74	74	0.00
15	B₁	2145	2145	215.46
16	B₁	2118	2118	25.98
17	B₁	924	924	63.97
18	B₁	577	577	8.04
19	B₁	305	305	15.59
20	B₁	92	92	0.03
21	B₂	2139	2139	42.54
22	B₂	2122	2122	118.25
23	B₂	921	921	30.19
24	B₂	852	852	300.84
25	B₂	702	702	291.99
26	B₂	440	440	7.70
27	B₂	419	419	9.65

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.891
Si2	0.000	1.973	-0.420
Si3	0.000	-1.973	-0.420
H4	1.213	0.000	1.782
H5	-1.213	0.000	1.782
H6	0.000	3.192	0.456
H7	0.000	-3.192	0.456
H8	1.218	2.016	-1.297
H9	-1.218	2.016	-1.297
H10	-1.218	-2.016	-1.297
H11	1.218	-2.016	-1.297

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3689	2.3689	1.5048	1.5048	3.2219	3.2219	3.2152	3.2152	3.2152	3.2152
Si2	2.3689		3.9452	3.1957	3.1957	1.5016	5.2386	1.5012	1.5012	4.2615	4.2615
Si3	2.3689	3.9452		3.1957	3.1957	5.2386	1.5016	4.2615	4.2615	1.5012	1.5012
H4	1.5048	3.1957	3.1957		2.4263	3.6635	3.6635	3.6805	4.4107	4.4107	3.6805
H5	1.5048	3.1957	3.1957	2.4263		3.6635	3.6635	4.4107	3.6805	3.6805	4.4107
H6	3.2219	1.5016	5.2386	3.6635	3.6635		6.3845	2.4371	2.4371	5.6286	5.6286
H7	3.2219	5.2386	1.5016	3.6635	3.6635	6.3845		5.6286	5.6286	2.4371	2.4371
H8	3.2152	1.5012	4.2615	3.6805	4.4107	2.4371	5.6286		2.4351	4.7103	4.0320
H9	3.2152	1.5012	4.2615	4.4107	3.6805	2.4371	5.6286	2.4351		4.0320	4.7103
H10	3.2152	4.2615	1.5012	4.4107	3.6805	5.6286	2.4371	4.7103	4.0320		2.4351
H11	3.2152	4.2615	1.5012	3.6805	4.4107	5.6286	2.4371	4.0320	4.7103	2.4351

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.691	S1	S2	H8	110.340
S1	S2	H9	110.340	S1	S3	H7	110.691
S1	S3	H10	110.340	S1	S3	H11	110.340
S2	S1	S3	112.754	S2	S1	H4	109.125
S2	S1	H5	109.125	S3	S1	H4	109.125
S3	S1	H5	109.125	H4	S1	H5	107.447
H6	S2	H8	108.503	H6	S2	H9	108.503
H7	S3	H10	108.503	H7	S3	H11	108.503
H8	S2	H9	108.397	H10	S3	H11	108.397

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: BLYP/cc-pV(D+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	0.102
2	Si	0.176
3	Si	0.176
4	H	-0.056
5	H	-0.056
6	H	-0.055
7	H	-0.055
8	H	-0.058
9	H	-0.058
10	H	-0.058
11	H	-0.058

<r²>	213.102
(<r²>)^1/2	14.598

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: BLYP/cc-pV(D+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)