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	hartrees
Energy at 0K	-873.238445
Energy at 298.15K
HF Energy	-873.238445
Nuclear repulsion energy	192.383747

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2210	2210	138.59
2	A₁	2200	2200	6.72
3	A₁	2179	2179	58.56
4	A₁	944	944	64.81
5	A₁	919	919	0.65
6	A₁	881	881	169.78
7	A₁	560	560	5.23
8	A₁	382	382	0.54
9	A₁	95	95	1.21
10	A₂	2208	2208	0.00
11	A₂	936	936	0.00
12	A₂	703	703	0.00
13	A₂	415	415	0.00
14	A₂	79	79	0.00
15	B₁	2214	2214	217.22
16	B₁	2189	2189	21.54
17	B₁	940	940	65.98
18	B₁	588	588	9.09
19	B₁	312	312	16.39
20	B₁	96	96	0.05
21	B₂	2208	2208	57.12
22	B₂	2195	2195	103.85
23	B₂	937	937	32.00
24	B₂	868	868	299.17
25	B₂	709	709	276.61
26	B₂	460	460	5.94
27	B₂	430	430	16.06

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.894
Si2	0.000	1.942	-0.420
Si3	0.000	-1.942	-0.420
H4	1.203	0.000	1.774
H5	-1.203	0.000	1.774
H6	0.000	3.161	0.432
H7	0.000	-3.161	0.432
H8	1.206	1.974	-1.290
H9	-1.206	1.974	-1.290
H10	-1.206	-1.974	-1.290
H11	1.206	-1.974	-1.290

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3449	2.3449	1.4905	1.4905	3.1947	3.1947	3.1809	3.1809	3.1809	3.1809
Si2	2.3449		3.8844	3.1674	3.1674	1.4874	5.1740	1.4873	1.4873	4.1887	4.1887
Si3	2.3449	3.8844		3.1674	3.1674	5.1740	1.4874	4.1887	4.1887	1.4873	1.4873
H4	1.4905	3.1674	3.1674		2.4059	3.6387	3.6387	3.6441	4.3686	4.3686	3.6441
H5	1.4905	3.1674	3.1674	2.4059		3.6387	3.6387	4.3686	3.6441	3.6441	4.3686
H6	3.1947	1.4874	5.1740	3.6387	3.6387		6.3223	2.4145	2.4145	5.5485	5.5485
H7	3.1947	5.1740	1.4874	3.6387	3.6387	6.3223		5.5485	5.5485	2.4145	2.4145
H8	3.1809	1.4873	4.1887	3.6441	4.3686	2.4145	5.5485		2.4127	4.6263	3.9473
H9	3.1809	1.4873	4.1887	4.3686	3.6441	2.4145	5.5485	2.4127		3.9473	4.6263
H10	3.1809	4.1887	1.4873	4.3686	3.6441	5.5485	2.4145	4.6263	3.9473		2.4127
H11	3.1809	4.1887	1.4873	3.6441	4.3686	5.5485	2.4145	3.9473	4.6263	2.4127

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.955	S1	S2	H8	110.186
S1	S2	H9	110.186	S1	S3	H7	110.955
S1	S3	H10	110.186	S1	S3	H11	110.186
S2	S1	S3	111.839	S2	S1	H4	109.319
S2	S1	H5	109.319	S3	S1	H4	109.319
S3	S1	H5	109.319	H4	S1	H5	107.631
H6	S2	H8	108.519	H6	S2	H9	108.519
H7	S3	H10	108.519	H7	S3	H11	108.519
H8	S2	H9	108.407	H10	S3	H11	108.407

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3PW91/aug-cc-pCVTZ

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	0.320
2	Si	0.705
3	Si	0.705
4	H	-0.182
5	H	-0.182
6	H	-0.266
7	H	-0.266
8	H	-0.208
9	H	-0.208
10	H	-0.208
11	H	-0.208

<r²>	208.193
(<r²>)^1/2	14.429

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3PW91/aug-cc-pCVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)