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	hartrees
Energy at 0K	-872.813620
Energy at 298.15K	-872.821356
HF Energy	-872.715622
Nuclear repulsion energy	192.389105

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2275	2275	193.09
2	A₁	2265	2265	14.25
3	A₁	2242	2242	85.65
4	A₁	980	980	80.01
5	A₁	956	956	6.40
6	A₁	919	919	199.58
7	A₁	583	583	8.20
8	A₁	395	395	0.77
9	A₁	101	101	1.50
10	A₂	2272	2272	0.00
11	A₂	969	969	0.00
12	A₂	731	731	0.00
13	A₂	434	434	0.00
14	A₂	79	79	0.00
15	B₁	2277	2277	315.04
16	B₁	2251	2251	38.55
17	B₁	973	973	87.13
18	B₁	615	615	10.47
19	B₁	325	325	22.24
20	B₁	100	100	0.06
21	B₂	2273	2273	85.21
22	B₂	2260	2260	125.50
23	B₂	971	971	36.76
24	B₂	908	908	336.69
25	B₂	750	750	331.03
26	B₂	478	478	6.26
27	B₂	453	453	19.45

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.886
Si2	0.000	1.950	-0.417
Si3	0.000	-1.950	-0.417
H4	1.198	0.000	1.765
H5	-1.198	0.000	1.765
H6	0.000	3.158	0.442
H7	0.000	-3.158	0.442
H8	1.202	1.987	-1.284
H9	-1.202	1.987	-1.284
H10	-1.202	-1.987	-1.284
H11	1.202	-1.987	-1.284

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3454	2.3454	1.4857	1.4857	3.1895	3.1895	3.1782	3.1782	3.1782	3.1782
Si2	2.3454		3.9006	3.1620	3.1620	1.4822	5.1804	1.4825	1.4825	4.2070	4.2070
Si3	2.3454	3.9006		3.1620	3.1620	5.1804	1.4822	4.2070	4.2070	1.4825	1.4825
H4	1.4857	3.1620	3.1620		2.3956	3.6278	3.6278	3.6392	4.3591	4.3591	3.6392
H5	1.4857	3.1620	3.1620	2.3956		3.6278	3.6278	4.3591	3.6392	3.6392	4.3591
H6	3.1895	1.4822	5.1804	3.6278	3.6278		6.3169	2.4073	2.4073	5.5586	5.5586
H7	3.1895	5.1804	1.4822	3.6278	3.6278	6.3169		5.5586	5.5586	2.4073	2.4073
H8	3.1782	1.4825	4.2070	3.6392	4.3591	2.4073	5.5586		2.4039	4.6445	3.9740
H9	3.1782	1.4825	4.2070	4.3591	3.6392	2.4073	5.5586	2.4039		3.9740	4.6445
H10	3.1782	4.2070	1.4825	4.3591	3.6392	5.5586	2.4073	4.6445	3.9740		2.4039
H11	3.1782	4.2070	1.4825	3.6392	4.3591	5.5586	2.4073	3.9740	4.6445	2.4039

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.855	S1	S2	H8	110.210
S1	S2	H9	110.210	S1	S3	H7	110.855
S1	S3	H10	110.210	S1	S3	H11	110.210
S2	S1	S3	112.513	S2	S1	H4	109.186
S2	S1	H5	109.186	S3	S1	H4	109.186
S3	S1	H5	109.186	H4	S1	H5	107.456
H6	S2	H8	108.579	H6	S2	H9	108.579
H7	S3	H10	108.579	H7	S3	H11	108.579
H8	S2	H9	108.341	H10	S3	H11	108.341

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP/6-31G**

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	0.124
2	Si	0.319
3	Si	0.319
4	H	-0.089
5	H	-0.089
6	H	-0.096
7	H	-0.096
8	H	-0.098
9	H	-0.098
10	H	-0.098
11	H	-0.098

<r²>	208.956
(<r²>)^1/2	14.455

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B2PLYP/6-31G**

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)