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	hartrees
Energy at 0K	-761.372440
Energy at 298.15K	-761.376448
HF Energy	-761.372440
Nuclear repulsion energy	294.020390

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3768	3599	167.49
2	A'	1347	1286	232.03
3	A'	1229	1174	104.85
4	A'	1074	1026	96.21
5	A'	785	750	190.19
6	A'	586	559	10.93
7	A'	574	548	27.27
8	A'	416	398	4.29
9	A"	1288	1230	285.62
10	A"	590	563	32.78
11	A"	428	409	10.23
12	A"	114	109	93.59

Atom	x (Å)	y (Å)	z (Å)
Cl1	-0.136	0.011	0.000
O2	-0.476	1.385	0.000
O3	1.494	0.080	0.000
O4	-0.476	-0.692	1.191
O5	-0.476	-0.692	-1.191
H6	1.797	-0.844	0.000

	Cl1	O2	O3	O4	O5	H6
Cl1		1.4151	1.6312	1.4242	1.4242	2.1131
O2	1.4151		2.3631	2.3937	2.3937	3.1831
O3	1.6312	2.3631		2.4281	2.4281	0.9719
O4	1.4242	2.3937	2.4281		2.3820	2.5707
O5	1.4242	2.3937	2.4281	2.3820		2.5707
H6	2.1131	3.1831	0.9719	2.5707	2.5707

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Cl1	O3	H6	105.735	O2	Cl1	O3	101.503
O2	Cl1	O4	114.926	O2	Cl1	O5	114.926
O3	Cl1	O4	105.050	O3	Cl1	O5	105.050
O4	Cl1	O5	113.498

All results from a given calculation for HClO₄ (perchloric acid)

using model chemistry: M06-2X/cc-pVTZ

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	Cl	1.130
2	O	-0.356
3	O	-0.295
4	O	-0.374
5	O	-0.374
6	H	0.268

	x	y	z	Total
	2.108	-1.450	0.000	2.558
CHELPG
AIM
ESP

	x	y	z
x	4.418	-0.158	0.000
y	-0.158	4.487	0.000
z	0.000	0.000	4.214

<r²>	94.821
(<r²>)^1/2	9.738

All results from a given calculation for HClO4 (perchloric acid)

using model chemistry: M06-2X/cc-pVTZ

States and conformations

All results from a given calculation for HClO₄ (perchloric acid)