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	hartrees
Energy at 0K	-27589.839665
Energy at 298.15K
HF Energy	-27589.240397
Nuclear repulsion energy	2767.359607

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	185	178	0.00
2	E	84	81	0.00
2	E	84	81	0.00
3	T₂	613	590	20.78
3	T₂	613	590	20.78
3	T₂	613	590	20.78
4	T₂	123	118	0.01
4	T₂	123	118	0.01
4	T₂	123	118	0.01

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
I2	1.280	1.280	1.280
I3	-1.280	-1.280	1.280
I4	-1.280	1.280	-1.280
I5	1.280	-1.280	-1.280

	C1	I2	I3	I4	I5
C1		2.2168	2.2168	2.2168	2.2168
I2	2.2168		3.6200	3.6200	3.6200
I3	2.2168	3.6200		3.6200	3.6200
I4	2.2168	3.6200	3.6200		3.6200
I5	2.2168	3.6200	3.6200	3.6200

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/3-21G*

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/3-21G*

States and conformations

All results from a given calculation for CI₄ (tetraiodomethane)