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	hartrees
Energy at 0K	-873.390177
Energy at 298.15K	-873.397679
HF Energy	-873.390177
Nuclear repulsion energy	192.195279

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2230	2230	144.32
2	A₁	2223	2223	6.67
3	A₁	2200	2200	60.60
4	A₁	958	958	72.38
5	A₁	934	934	0.93
6	A₁	895	895	174.49
7	A₁	564	564	5.27
8	A₁	381	381	0.51
9	A₁	94	94	1.23
10	A₂	2228	2228	0.00
11	A₂	948	948	0.00
12	A₂	708	708	0.00
13	A₂	412	412	0.00
14	A₂	50	50	0.00
15	B₁	2233	2233	219.95
16	B₁	2207	2207	25.80
17	B₁	952	952	70.26
18	B₁	594	594	8.89
19	B₁	308	308	16.94
20	B₁	72	72	0.08
21	B₂	2228	2228	57.93
22	B₂	2218	2218	106.81
23	B₂	952	952	30.69
24	B₂	881	881	326.39
25	B₂	717	717	278.40
26	B₂	459	459	5.86
27	B₂	429	429	17.02

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.891
Si2	0.000	1.949	-0.419
Si3	0.000	-1.949	-0.419
H4	1.199	0.000	1.771
H5	-1.199	0.000	1.771
H6	0.000	3.163	0.434
H7	0.000	-3.163	0.434
H8	1.203	1.985	-1.287
H9	-1.203	1.985	-1.287
H10	-1.203	-1.985	-1.287
H11	1.203	-1.985	-1.287

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3488	2.3488	1.4870	1.4870	3.1960	3.1960	3.1830	3.1830	3.1830	3.1830
Si2	2.3488		3.8986	3.1674	3.1674	1.4839	5.1833	1.4839	1.4839	4.2046	4.2046
Si3	2.3488	3.8986		3.1674	3.1674	5.1833	1.4839	4.2046	4.2046	1.4839	1.4839
H4	1.4870	3.1674	3.1674		2.3981	3.6372	3.6372	3.6452	4.3656	4.3656	3.6452
H5	1.4870	3.1674	3.1674	2.3981		3.6372	3.6372	4.3656	3.6452	3.6452	4.3656
H6	3.1960	1.4839	5.1833	3.6372	3.6372		6.3264	2.4081	2.4081	5.5600	5.5600
H7	3.1960	5.1833	1.4839	3.6372	3.6372	6.3264		5.5600	5.5600	2.4081	2.4081
H8	3.1830	1.4839	4.2046	3.6452	4.3656	2.4081	5.5600		2.4065	4.6423	3.9698
H9	3.1830	1.4839	4.2046	4.3656	3.6452	2.4081	5.5600	2.4065		3.9698	4.6423
H10	3.1830	4.2046	1.4839	4.3656	3.6452	5.5600	2.4081	4.6423	3.9698		2.4065
H11	3.1830	4.2046	1.4839	3.6452	4.3656	5.5600	2.4081	3.9698	4.6423	2.4065

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.977	S1	S2	H8	110.250
S1	S2	H9	110.250	S1	S3	H7	110.977
S1	S3	H10	110.250	S1	S3	H11	110.250
S2	S1	S3	112.181	S2	S1	H4	109.265
S2	S1	H5	109.265	S3	S1	H4	109.265
S3	S1	H5	109.265	H4	S1	H5	107.484
H6	S2	H8	108.464	H6	S2	H9	108.464
H7	S3	H10	108.464	H7	S3	H11	108.464
H8	S2	H9	108.365	H10	S3	H11	108.365

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: TPSSh/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	0.069
2	Si	0.115
3	Si	0.115
4	H	-0.039
5	H	-0.039
6	H	-0.036
7	H	-0.036
8	H	-0.037
9	H	-0.037
10	H	-0.037
11	H	-0.037

<r²>	209.034
(<r²>)^1/2	14.458

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: TPSSh/cc-pCVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)