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	hartrees
Energy at 0K	-868.757795
Energy at 298.15K
HF Energy	-868.757795
Nuclear repulsion energy	195.028010

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2181	2066	111.48
2	A₁	2177	2062	58.43
3	A₁	2147	2033	0.75
4	A₁	972	921	53.75
5	A₁	947	897	7.55
6	A₁	911	862	211.12
7	A₁	581	551	9.44
8	A₁	413	391	1.00
9	A₁	93	88	1.95
10	A₂	2184	2069	0.00
11	A₂	971	920	0.00
12	A₂	749	709	0.00
13	A₂	430	408	0.00
14	A₂	68i	65i	0.00
15	B₁	2193	2077	185.24
16	B₁	2182	2067	14.50
17	B₁	975	924	76.40
18	B₁	613	580	10.66
19	B₁	293	277	16.47
20	B₁	41	39	0.01
21	B₂	2178	2063	0.01
22	B₂	2146	2033	148.98
23	B₂	965	914	47.00
24	B₂	906	858	280.49
25	B₂	750	710	337.66
26	B₂	490	464	2.31
27	B₂	444	420	4.57

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.919
Si2	0.000	1.884	-0.428
Si3	0.000	-1.884	-0.428
H4	1.200	0.000	1.791
H5	-1.200	0.000	1.791
H6	0.000	3.132	0.370
H7	0.000	-3.132	0.370
H8	1.200	1.871	-1.297
H9	-1.200	1.871	-1.297
H10	-1.200	-1.871	-1.297
H11	1.200	-1.871	-1.297

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3164	2.3164	1.4838	1.4838	3.1797	3.1797	3.1386	3.1386	3.1386	3.1386
Si2	2.3164		3.7686	3.1492	3.1492	1.4811	5.0794	1.4815	1.4815	4.0370	4.0370
Si3	2.3164	3.7686		3.1492	3.1492	5.0794	1.4811	4.0370	4.0370	1.4815	1.4815
H4	1.4838	3.1492	3.1492		2.4009	3.6428	3.6428	3.6106	4.3357	4.3357	3.6106
H5	1.4838	3.1492	3.1492	2.4009		3.6428	3.6428	4.3357	3.6106	3.6106	4.3357
H6	3.1797	1.4811	5.0794	3.6428	3.6428		6.2639	2.4100	2.4100	5.4082	5.4082
H7	3.1797	5.0794	1.4811	3.6428	3.6428	6.2639		5.4082	5.4082	2.4100	2.4100
H8	3.1386	1.4815	4.0370	3.6106	4.3357	2.4100	5.4082		2.4001	4.4457	3.7422
H9	3.1386	1.4815	4.0370	4.3357	3.6106	2.4100	5.4082	2.4001		3.7422	4.4457
H10	3.1386	4.0370	1.4815	4.3357	3.6106	5.4082	2.4100	4.4457	3.7422		2.4001
H11	3.1386	4.0370	1.4815	3.6106	4.3357	5.4082	2.4100	3.7422	4.4457	2.4001

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.829	S1	S2	H8	109.495
S1	S2	H9	109.495	S1	S3	H7	111.829
S1	S3	H10	109.495	S1	S3	H11	109.495
S2	S1	S3	108.873	S2	S1	H4	109.989
S2	S1	H5	109.989	S3	S1	H4	109.989
S3	S1	H5	109.989	H4	S1	H5	108.004
H6	S2	H8	108.874	H6	S2	H9	108.874
H7	S3	H10	108.874	H7	S3	H11	108.874
H8	S2	H9	108.199	H10	S3	H11	108.199

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: M06-2X/3-21G*

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	-0.052
2	Si	0.119
3	Si	0.119
4	H	-0.009
5	H	-0.009
6	H	-0.028
7	H	-0.028
8	H	-0.028
9	H	-0.028
10	H	-0.028
11	H	-0.028

<r²>	200.935
(<r²>)^1/2	14.175

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: M06-2X/3-21G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)