return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHFClI (fluorochloroiodomethane)

using model chemistry: QCISD(T)=FULL/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD(T)=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-893.058134
Energy at 298.15K 
HF Energy-892.098160
Nuclear repulsion energy244.892831
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 QCISD(T)=FULL/cc-pVTZ-PP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3183 3183        
2 A 1346 1346        
3 A 1208 1208        
4 A 1115 1115        
5 A 788 788        
6 A 600 600        
7 A 418 418        
8 A 275 275        
9 A 195 195        

Unscaled Zero Point Vibrational Energy (zpe) 4563.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4563.7 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 QCISD(T)=FULL/cc-pVTZ-PP
ABC
0.20942 0.04889 0.04065

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVTZ-PP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.988 0.476 0.417
H2 1.060 0.612 1.484
F3 1.267 1.635 -0.210
Cl4 2.150 -0.756 -0.070
I5 -1.037 -0.101 -0.017

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.07811.34721.76282.1495
H21.07811.99012.34052.6749
F31.34721.99012.55342.8912
Cl41.76282.34052.55343.2539
I52.14952.67492.89123.2539

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 109.791 H2 C1 Cl4 108.537
H2 C1 I5 107.226 F3 C1 Cl4 109.654
F3 C1 I5 109.405 Cl4 C1 I5 112.178
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability