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	hartrees
Energy at 0K	-760.983007
Energy at 298.15K	-760.986915
HF Energy	-760.983007
Nuclear repulsion energy	289.174216

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3770	3620	138.75
2	A'	1285	1234	215.39
3	A'	1172	1126	114.42
4	A'	1003	963	98.12
5	A'	702	674	183.29
6	A'	542	520	24.98
7	A'	519	498	7.24
8	A'	385	370	5.21
9	A"	1210	1162	296.87
10	A"	549	527	36.78
11	A"	397	381	20.45
12	A"	187	179	90.35

Atom	x (Å)	y (Å)	z (Å)
Cl1	-0.146	0.011	0.000
O2	-0.484	1.403	0.000
O3	1.533	0.087	0.000
O4	-0.484	-0.704	1.208
O5	-0.484	-0.704	-1.208
H6	1.828	-0.837	0.000

	Cl1	O2	O3	O4	O5	H6
Cl1		1.4323	1.6814	1.4432	1.4432	2.1482
O2	1.4323		2.4079	2.4282	2.4282	3.2184
O3	1.6814	2.4079		2.4806	2.4806	0.9703
O4	1.4432	2.4282	2.4806		2.4155	2.6112
O5	1.4432	2.4282	2.4806	2.4155		2.6112
H6	2.1482	3.2184	0.9703	2.6112	2.6112

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Cl1	O3	H6	105.030	O2	Cl1	O3	101.004
O2	Cl1	O4	115.218	O2	Cl1	O5	115.218
O3	Cl1	O4	104.843	O3	Cl1	O5	104.843
O4	Cl1	O5	113.611

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

using model chemistry: HSEh1PBE/6-311G**

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	1.140
2	O	-0.348
3	O	-0.380
4	O	-0.362
5	O	-0.362
6	H	0.312

	x	y	z	Total
	1.921	-1.555	0.000	2.472
CHELPG
AIM
ESP

	x	y	z
x	4.267	-0.184	0.000
y	-0.184	4.252	0.000
z	0.000	0.000	3.945

<r²>	97.845
(<r²>)^1/2	9.892

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

using model chemistry: HSEh1PBE/6-311G**

States and conformations

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