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	hartrees
Energy at 0K	-27589.188145
Energy at 298.15K
HF Energy	-27588.966896
Nuclear repulsion energy	2748.123634

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	181	170	0.00
2	E	89	83	0.00
2	E	89	83	0.00
3	T₂	606	570	26.31
3	T₂	606	570	26.31
3	T₂	606	570	26.31
4	T₂	132	124	0.01
4	T₂	132	124	0.01
4	T₂	132	124	0.01

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
I2	1.289	1.289	1.289
I3	-1.289	-1.289	1.289
I4	-1.289	1.289	-1.289
I5	1.289	-1.289	-1.289

	C1	I2	I3	I4	I5
C1		2.2323	2.2323	2.2323	2.2323
I2	2.2323		3.6454	3.6454	3.6454
I3	2.2323	3.6454		3.6454	3.6454
I4	2.2323	3.6454	3.6454		3.6454
I5	2.2323	3.6454	3.6454	3.6454

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: CISD/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: CISD/3-21G

States and conformations

All results from a given calculation for CI₄ (tetraiodomethane)