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	hartrees
Energy at 0K	-873.371821
Energy at 298.15K	-873.379468
HF Energy	-873.371821
Nuclear repulsion energy	192.041257

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2216	2133	154.28
2	A₁	2208	2126	5.71
3	A₁	2185	2103	64.78
4	A₁	958	922	71.64
5	A₁	934	899	2.52
6	A₁	897	864	182.68
7	A₁	568	546	6.24
8	A₁	376	362	0.55
9	A₁	98	94	1.34
10	A₂	2214	2131	0.00
11	A₂	950	915	0.00
12	A₂	713	686	0.00
13	A₂	423	407	0.00
14	A₂	91	88	0.00
15	B₁	2219	2136	233.59
16	B₁	2192	2110	28.14
17	B₁	955	919	73.71
18	B₁	598	575	9.49
19	B₁	319	307	19.11
20	B₁	107	103	0.04
21	B₂	2214	2131	58.42
22	B₂	2204	2121	114.25
23	B₂	950	915	34.98
24	B₂	885	852	321.41
25	B₂	727	700	306.09
26	B₂	457	440	10.18
27	B₂	436	420	11.74

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.890
Si2	0.000	1.954	-0.419
Si3	0.000	-1.954	-0.419
H4	1.199	0.000	1.767
H5	-1.199	0.000	1.767
H6	0.000	3.163	0.440
H7	0.000	-3.163	0.440
H8	1.203	1.990	-1.285
H9	-1.203	1.990	-1.285
H10	-1.203	-1.990	-1.285
H11	1.203	-1.990	-1.285

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3514	2.3514	1.4862	1.4862	3.1949	3.1949	3.1839	3.1839	3.1839	3.1839
Si2	2.3514		3.9075	3.1678	3.1678	1.4830	5.1883	1.4830	1.4830	4.2132	4.2132
Si3	2.3514	3.9075		3.1678	3.1678	5.1883	1.4830	4.2132	4.2132	1.4830	1.4830
H4	1.4862	3.1678	3.1678		2.3986	3.6341	3.6341	3.6440	4.3646	4.3646	3.6440
H5	1.4862	3.1678	3.1678	2.3986		3.6341	3.6341	4.3646	3.6440	3.6440	4.3646
H6	3.1949	1.4830	5.1883	3.6341	3.6341		6.3261	2.4079	2.4079	5.5657	5.5657
H7	3.1949	5.1883	1.4830	3.6341	3.6341	6.3261		5.5657	5.5657	2.4079	2.4079
H8	3.1839	1.4830	4.2132	3.6440	4.3646	2.4079	5.5657		2.4060	4.6508	3.9801
H9	3.1839	1.4830	4.2132	4.3646	3.6440	2.4079	5.5657	2.4060		3.9801	4.6508
H10	3.1839	4.2132	1.4830	4.3646	3.6440	5.5657	2.4079	4.6508	3.9801		2.4060
H11	3.1839	4.2132	1.4830	3.6440	4.3646	5.5657	2.4079	3.9801	4.6508	2.4060

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.823	S1	S2	H8	110.209
S1	S2	H9	110.209	S1	S3	H7	110.823
S1	S3	H10	110.209	S1	S3	H11	110.209
S2	S1	S3	112.380	S2	S1	H4	109.187
S2	S1	H5	109.187	S3	S1	H4	109.187
S3	S1	H5	109.187	H4	S1	H5	107.596
H6	S2	H8	108.554	H6	S2	H9	108.554
H7	S3	H10	108.554	H7	S3	H11	108.554
H8	S2	H9	108.428	H10	S3	H11	108.428

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3LYP/Def2TZVPP

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	0.128
2	Si	0.156
3	Si	0.156
4	H	-0.060
5	H	-0.060
6	H	-0.053
7	H	-0.053
8	H	-0.054
9	H	-0.054
10	H	-0.054
11	H	-0.054

<r²>	209.866
(<r²>)^1/2	14.487

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3LYP/Def2TZVPP

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)