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	hartrees
Energy at 0K	-1217.493681
Energy at 298.15K
HF Energy	-1216.470381
Nuclear repulsion energy	710.301424

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	193	193	0.00
2	E	87	87	0.00
2	E	87	87	0.00
3	T₂	627	627	22.41
3	T₂	627	627	22.41
3	T₂	627	627	22.41
4	T₂	129	129	0.02
4	T₂	129	129	0.02
4	T₂	129	129	0.02

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
I2	1.246	1.246	1.246
I3	-1.246	-1.246	1.246
I4	-1.246	1.246	-1.246
I5	1.246	-1.246	-1.246

	C1	I2	I3	I4	I5
C1		2.1578	2.1578	2.1578	2.1578
I2	2.1578		3.5237	3.5237	3.5237
I3	2.1578	3.5237		3.5237	3.5237
I4	2.1578	3.5237	3.5237		3.5237
I5	2.1578	3.5237	3.5237	3.5237

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
I2	C1	I3	109.471	I2	C1	I4	109.471
I2	C1	I5	109.471	I3	C1	I4	109.471
I3	C1	I5	109.471	I4	C1	I5	109.471

All results from a given calculation for CI₄ (tetraiodomethane)

using model chemistry: QCISD/cc-pVTZ-PP

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 CI4 (tetraiodomethane)

using model chemistry: QCISD/cc-pVTZ-PP

States and conformations

All results from a given calculation for CI₄ (tetraiodomethane)