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 CCl3CHO (trichloroacetaldehyde)

using model chemistry: CCSD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-1530.481689
Energy at 298.15K-1530.483208
HF Energy-1529.578595
Nuclear repulsion energy431.045090
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 CCSD(T)/6-31G*
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' 3030 2915        
2 A' 1819 1750        
3 A' 1413 1360        
4 A' 1074 1034        
5 A' 887 853        
6 A' 641 616        
7 A' 452 435        
8 A' 326 314        
9 A' 280 269        
10 A' 209 201        
11 A" 1016 977        
12 A" 772 743        
13 A" 332 319        
14 A" 253 244        
15 A" 75 72        

Unscaled Zero Point Vibrational Energy (zpe) 6289.0 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 6050.7 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 CCSD(T)/6-31G*
ABC
0.06145 0.05443 0.05037

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.044 0.046 0.000
C2 0.928 -1.224 0.000
O3 0.489 -2.351 0.000
Cl4 -1.669 -0.358 0.000
Cl5 0.489 0.969 1.463
Cl6 0.489 0.969 -1.463
H7 2.009 -0.985 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.54762.43781.75971.78571.78572.2190
C21.54761.20972.73772.67212.67211.1065
O32.43781.20972.93713.62743.62742.0436
Cl41.75972.73772.93712.92472.92473.7306
Cl51.78572.67213.62742.92472.92582.8753
Cl61.78572.67213.62742.92472.92582.8753
H72.21901.10652.04363.73062.87532.8753

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.830 C1 C2 H7 112.390
C2 C1 Cl4 111.584 C2 C1 Cl5 106.355
C2 C1 Cl6 106.355 O3 C2 H7 123.779
Cl4 C1 Cl5 111.159 Cl4 C1 Cl6 111.159
Cl5 C1 Cl6 110.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability