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	hartrees
Energy at 0K	-27589.245091
Energy at 298.15K
HF Energy	-27588.966755
Nuclear repulsion energy	2744.704958

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	179	179	0.00
2	E	88	88	0.00
2	E	88	88	0.00
3	T₂	595	595	27.78
3	T₂	595	595	27.78
3	T₂	595	595	27.78
4	T₂	131	131	0.02
4	T₂	131	131	0.02
4	T₂	131	131	0.02

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
I2	1.290	1.290	1.290
I3	-1.290	-1.290	1.290
I4	-1.290	1.290	-1.290
I5	1.290	-1.290	-1.290

	C1	I2	I3	I4	I5
C1		2.2351	2.2351	2.2351	2.2351
I2	2.2351		3.6499	3.6499	3.6499
I3	2.2351	3.6499		3.6499	3.6499
I4	2.2351	3.6499	3.6499		3.6499
I5	2.2351	3.6499	3.6499	3.6499

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: MP3=FULL/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: MP3=FULL/3-21G

States and conformations

All results from a given calculation for CI₄ (tetraiodomethane)