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	hartrees
Energy at 0K	-761.103629
Energy at 298.15K	-761.107647
HF Energy	-761.103629
Nuclear repulsion energy	292.539344

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3746	3603	130.76
2	A'	1331	1281	221.27
3	A'	1213	1166	102.73
4	A'	1048	1008	83.51
5	A'	728	701	181.77
6	A'	562	541	13.82
7	A'	548	527	9.82
8	A'	401	386	4.66
9	A"	1258	1210	266.78
10	A"	569	547	23.90
11	A"	412	396	12.45
12	A"	184	177	82.67

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

using model chemistry: HSEh1PBE/aug-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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All results from a given calculation for HClO4 (perchloric acid)

using model chemistry: HSEh1PBE/aug-cc-pVTZ

States and conformations

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