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All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: CID/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-14011.458268
Energy at 298.15K 
HF Energy-14011.095015
Nuclear repulsion energy951.728662
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CID/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 1107 1032 257.81      
2 A1 566 528 12.93      
3 A1 265 247 0.06      
4 A1 115 107 0.01      
5 A2 256 238 0.00      
6 B1 759 707 342.14      
7 B1 278 259 0.70      
8 B2 1222 1138 119.73      
9 B2 306 286 1.16      

Unscaled Zero Point Vibrational Energy (zpe) 2437.6 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 2270.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CID/3-21G
ABC
0.08972 0.01799 0.01635

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.855
F2 0.000 1.112 1.661
F3 0.000 -1.112 1.661
I4 1.873 0.000 -0.330
I5 -1.873 0.000 -0.330

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.37341.37342.21632.2163
F21.37342.22432.95102.9510
F31.37342.22432.95102.9510
I42.21632.95102.95103.7457
I52.21632.95102.95103.7457

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 108.147 F2 C1 I4 108.286
F2 C1 I5 108.286 F3 C1 I4 108.286
F3 C1 I5 108.286 I4 C1 I5 115.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability