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	hartrees
Energy at 0K	-761.337167
Energy at 298.15K	-761.340870
HF Energy	-761.337167
Nuclear repulsion energy	283.439745

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3658	3658	110.85
2	A'	1242	1242	149.05
3	A'	1131	1131	125.14
4	A'	949	949	92.13
5	A'	673	673	153.28
6	A'	506	506	21.12
7	A'	486	486	6.69
8	A'	358	358	4.56
9	A"	1153	1153	237.12
10	A"	510	510	28.04
11	A"	366	366	14.90
12	A"	151	151	78.04

Atom	x (Å)	y (Å)	z (Å)
Cl1	-0.151	0.010	0.000
O2	-0.492	1.431	0.000
O3	1.568	0.094	0.000
O4	-0.492	-0.719	1.232
O5	-0.492	-0.719	-1.232
H6	1.839	-0.849	0.000

	Cl1	O2	O3	O4	O5	H6
Cl1		1.4616	1.7210	1.4716	1.4716	2.1672
O2	1.4616		2.4556	2.4783	2.4783	3.2602
O3	1.7210	2.4556		2.5339	2.5339	0.9807
O4	1.4716	2.4783	2.5339		2.4643	2.6394
O5	1.4716	2.4783	2.5339	2.4643		2.6394
H6	2.1672	3.2602	0.9807	2.6394	2.6394

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Cl1	O3	H6	103.244	O2	Cl1	O3	100.677
O2	Cl1	O4	115.328	O2	Cl1	O5	115.328
O3	Cl1	O4	104.796	O3	Cl1	O5	104.796
O4	Cl1	O5	113.707

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

using model chemistry: B3LYP/cc-pCVDZ

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	1.094
2	O	-0.329
3	O	-0.280
4	O	-0.343
5	O	-0.343
6	H	0.201

	x	y	z	Total
	1.680	-1.442	0.000	2.213
CHELPG
AIM
ESP

	x	y	z
x	4.324	-0.193	0.000
y	-0.193	4.310	0.000
z	0.000	0.000	3.947

<r²>	100.458
(<r²>)^1/2	10.023

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

using model chemistry: B3LYP/cc-pCVDZ

States and conformations

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