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	hartrees
Energy at 0K	-355.157321
Energy at 298.15K	-355.160960
HF Energy	-354.187093
Nuclear repulsion energy	182.843028

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3771	3542	52.81
2	A	1939	1821	228.50
3	A	1398	1313	59.11
4	A	1312	1233	194.49
5	A	949	892	48.06
6	A	758	712	144.00
7	A	703	661	6.72
8	A	628	590	37.95
9	A	398	374	89.58
10	A	345	324	63.64
11	A	299	281	14.05
12	A	124	116	14.74

Atom	x (Å)	y (Å)	z (Å)
N1	0.641	0.089	0.002
O2	-0.627	-0.804	0.042
O3	-1.756	0.037	-0.135
O4	1.620	-0.619	-0.012
O5	0.451	1.278	0.005
H6	-1.999	0.248	0.783

	N1	O2	O3	O4	O5	H6
N1		1.5514	2.4019	1.2086	1.2046	2.7578
O2	1.5514		1.4195	2.2555	2.3455	1.8818
O3	2.4019	1.4195		3.4421	2.5366	0.9732
O4	1.2086	2.2555	3.4421		2.2289	3.8058
O5	1.2046	2.3455	2.5366	2.2289		2.7694
H6	2.7578	1.8818	0.9732	3.8058	2.7694

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	O2	O3	107.808	O2	N1	O4	108.981
O2	N1	O5	116.085	O2	O3	H6	102.096
O4	N1	O5	134.928

All results from a given calculation for HOONO₂ (peroxy nitric acid)

using model chemistry: MP2=FULL/6-31+G**

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 HOONO2 (peroxy nitric acid)

using model chemistry: MP2=FULL/6-31+G**

States and conformations

All results from a given calculation for HOONO₂ (peroxy nitric acid)