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	hartrees
Energy at 0K	-760.568915
Energy at 298.15K	-760.572968
HF Energy	-759.311467
Nuclear repulsion energy	293.136877

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A'	3732	3732
2	A'	1363	1363
3	A'	1220	1220
4	A'	1062	1062
5	A'	714	714
6	A'	566	566
7	A'	552	552
8	A'	410	410
9	A"	1301	1301
10	A"	573	573
11	A"	423	423
12	A"	182	182

Atom	x (Å)	y (Å)	z (Å)
Cl1	-0.144	0.009	0.000
O2	-0.475	1.385	0.000
O3	1.506	0.090	0.000
O4	-0.475	-0.695	1.194
O5	-0.475	-0.695	-1.194
H6	1.790	-0.840	0.000

	Cl1	O2	O3	O4	O5	H6
Cl1		1.4158	1.6514	1.4250	1.4250	2.1118
O2	1.4158		2.3665	2.3985	2.3985	3.1751
O3	1.6514	2.3665		2.4424	2.4424	0.9725
O4	1.4250	2.3985	2.4424		2.3878	2.5646
O5	1.4250	2.3985	2.4424	2.3878		2.5646
H6	2.1118	3.1751	0.9725	2.5646	2.5646

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Cl1	O3	H6	104.180	O2	Cl1	O3	100.706
O2	Cl1	O4	115.201	O2	Cl1	O5	115.201
O3	Cl1	O4	104.867	O3	Cl1	O5	104.867
O4	Cl1	O5	113.828

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

using model chemistry: MP4/cc-pCVTZ

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 HClO4 (perchloric acid)

using model chemistry: MP4/cc-pCVTZ

States and conformations

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