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	hartrees
Energy at 0K	-872.269753
Energy at 298.15K	-872.277551
HF Energy	-871.489249
Nuclear repulsion energy	194.091151

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2275	2275	121.07
2	A₁	2265	2265	27.29
3	A₁	2248	2248	70.88
4	A₁	985	985	78.50
5	A₁	959	959	0.30
6	A₁	917	917	204.22
7	A₁	581	581	6.20
8	A₁	404	404	0.59
9	A₁	94	94	1.48
10	A₂	2271	2271	0.00
11	A₂	977	977	0.00
12	A₂	724	724	0.00
13	A₂	423	423	0.00
14	A₂	97	97	0.00
15	B₁	2276	2276	239.00
16	B₁	2256	2256	16.64
17	B₁	982	982	79.93
18	B₁	610	610	9.69
19	B₁	322	322	21.84
20	B₁	113	113	0.12
21	B₂	2274	2274	94.83
22	B₂	2261	2261	82.49
23	B₂	978	978	39.10
24	B₂	903	903	333.83
25	B₂	732	732	280.23
26	B₂	479	479	7.24
27	B₂	441	441	23.67

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.911
Si2	0.000	1.910	-0.426
Si3	0.000	-1.910	-0.426
H4	1.197	0.000	1.777
H5	-1.197	0.000	1.777
H6	0.000	3.138	0.391
H7	0.000	-3.138	0.391
H8	1.197	1.913	-1.288
H9	-1.197	1.913	-1.288
H10	-1.197	-1.913	-1.288
H11	1.197	-1.913	-1.288

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3311	2.3311	1.4774	1.4774	3.1803	3.1803	3.1509	3.1509	3.1509	3.1509
Si2	2.3311		3.8194	3.1516	3.1516	1.4746	5.1129	1.4751	1.4751	4.0977	4.0977
Si3	2.3311	3.8194		3.1516	3.1516	5.1129	1.4746	4.0977	4.0977	1.4751	1.4751
H4	1.4774	3.1516	3.1516		2.3938	3.6329	3.6329	3.6129	4.3342	4.3342	3.6129
H5	1.4774	3.1516	3.1516	2.3938		3.6329	3.6329	4.3342	3.6129	3.6129	4.3342
H6	3.1803	1.4746	5.1129	3.6329	3.6329		6.2750	2.3978	2.3978	5.4554	5.4554
H7	3.1803	5.1129	1.4746	3.6329	3.6329	6.2750		5.4554	5.4554	2.3978	2.3978
H8	3.1509	1.4751	4.0977	3.6129	4.3342	2.3978	5.4554		2.3943	4.5139	3.8266
H9	3.1509	1.4751	4.0977	4.3342	3.6129	2.3978	5.4554	2.3943		3.8266	4.5139
H10	3.1509	4.0977	1.4751	4.3342	3.6129	5.4554	2.3978	4.5139	3.8266		2.3943
H11	3.1509	4.0977	1.4751	3.6129	4.3342	5.4554	2.3978	3.8266	4.5139	2.3943

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.378	S1	S2	H8	109.697
S1	S2	H9	109.697	S1	S3	H7	111.378
S1	S3	H10	109.697	S1	S3	H11	109.697
S2	S1	S3	110.016	S2	S1	H4	109.644
S2	S1	H5	109.644	S3	S1	H4	109.644
S3	S1	H5	109.644	H4	S1	H5	108.222
H6	S2	H8	108.758	H6	S2	H9	108.758
H7	S3	H10	108.758	H7	S3	H11	108.758
H8	S2	H9	108.497	H10	S3	H11	108.497

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP3=FULL/cc-pV(T+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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All results from a given calculation for Si3H8 (trisilane)

using model chemistry: MP3=FULL/cc-pV(T+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)