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	hartrees
Energy at 0K	-871.859269
Energy at 298.15K	-871.866866
HF Energy	-871.440386
Nuclear repulsion energy	191.657486

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2257	2257	122.06
2	A₁	2242	2242	35.05
3	A₁	2224	2224	76.23
4	A₁	958	958	72.40
5	A₁	936	936	0.27
6	A₁	893	893	209.48
7	A₁	567	567	6.16
8	A₁	389	389	0.53
9	A₁	90	90	1.46
10	A₂	2250	2250	0.00
11	A₂	955	955	0.00
12	A₂	710	710	0.00
13	A₂	414	414	0.00
14	A₂	69	69	0.00
15	B₁	2257	2257	262.02
16	B₁	2237	2237	14.50
17	B₁	959	959	78.53
18	B₁	598	598	9.83
19	B₁	311	311	21.71
20	B₁	98	98	0.06
21	B₂	2255	2255	101.79
22	B₂	2238	2238	86.63
23	B₂	951	951	42.41
24	B₂	880	880	323.79
25	B₂	713	713	290.77
26	B₂	462	462	9.55
27	B₂	431	431	18.89

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.929
Si2	0.000	1.932	-0.434
Si3	0.000	-1.932	-0.434
H4	1.211	0.000	1.801
H5	-1.211	0.000	1.801
H6	0.000	3.176	0.385
H7	0.000	-3.176	0.385
H8	1.209	1.928	-1.305
H9	-1.209	1.928	-1.305
H10	-1.209	-1.928	-1.305
H11	1.209	-1.928	-1.305

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3650	2.3650	1.4922	1.4922	3.2223	3.2223	3.1890	3.1890	3.1890	3.1890
Si2	2.3650		3.8644	3.1933	3.1933	1.4892	5.1734	1.4900	1.4900	4.1378	4.1378
Si3	2.3650	3.8644		3.1933	3.1933	5.1734	1.4892	4.1378	4.1378	1.4900	1.4900
H4	1.4922	3.1933	3.1933		2.4223	3.6823	3.6823	3.6553	4.3842	4.3842	3.6553
H5	1.4922	3.1933	3.1933	2.4223		3.6823	3.6823	4.3842	3.6553	3.6553	4.3842
H6	3.2223	1.4892	5.1734	3.6823	3.6823		6.3518	2.4235	2.4235	5.5105	5.5105
H7	3.2223	5.1734	1.4892	3.6823	3.6823	6.3518		5.5105	5.5105	2.4235	2.4235
H8	3.1890	1.4900	4.1378	3.6553	4.3842	2.4235	5.5105		2.4189	4.5519	3.8560
H9	3.1890	1.4900	4.1378	4.3842	3.6553	2.4235	5.5105	2.4189		3.8560	4.5519
H10	3.1890	4.1378	1.4900	4.3842	3.6553	5.5105	2.4235	4.5519	3.8560		2.4189
H11	3.1890	4.1378	1.4900	3.6553	4.3842	5.5105	2.4235	3.8560	4.5519	2.4189

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.421	S1	S2	H8	109.538
S1	S2	H9	109.538	S1	S3	H7	111.421
S1	S3	H10	109.538	S1	S3	H11	109.538
S2	S1	S3	109.575	S2	S1	H4	109.684
S2	S1	H5	109.684	S3	S1	H4	109.684
S3	S1	H5	109.684	H4	S1	H5	108.513
H6	S2	H8	108.879	H6	S2	H9	108.879
H7	S3	H10	108.879	H7	S3	H11	108.879
H8	S2	H9	108.531	H10	S3	H11	108.531

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP3=FULL/daug-cc-pVDZ

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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All results from a given calculation for Si3H8 (trisilane)

using model chemistry: MP3=FULL/daug-cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)