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: MP2=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-1530.482069
Energy at 298.15K-1530.483657
HF Energy-1529.585590
Nuclear repulsion energy433.048144
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 MP2=FULL/6-31+G**
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' 3088 2901 24.87      
2 A' 1782 1674 105.27      
3 A' 1422 1335 7.00      
4 A' 1079 1014 29.02      
5 A' 896 841 85.25      
6 A' 647 607 55.30      
7 A' 460 432 2.45      
8 A' 331 311 3.45      
9 A' 284 267 1.44      
10 A' 209 197 3.13      
11 A" 1042 979 31.67      
12 A" 787 739 111.92      
13 A" 338 317 2.43      
14 A" 255 240 1.67      
15 A" 77 73 6.82      

Unscaled Zero Point Vibrational Energy (zpe) 6348.6 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 5962.6 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 MP2=FULL/6-31+G**
ABC
0.06200 0.05489 0.05088

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.041 0.049 0.000
C2 0.921 -1.215 0.000
O3 0.488 -2.348 0.000
Cl4 -1.662 -0.351 0.000
Cl5 0.488 0.962 1.455
Cl6 0.488 0.962 -1.455
H7 1.994 -0.973 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.54092.43811.74901.77511.77512.2045
C21.54091.21252.72422.65452.65451.0991
O32.43811.21252.93413.61563.61562.0384
Cl41.74902.72422.93412.90942.90943.7083
Cl51.77512.65453.61562.90942.91012.8515
Cl61.77512.65453.61562.90942.91012.8515
H72.20451.09912.03843.70832.85152.8515

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 124.188 C1 C2 H7 112.159
C2 C1 Cl4 111.639 C2 C1 Cl5 106.142
C2 C1 Cl6 106.142 O3 C2 H7 123.653
Cl4 C1 Cl5 111.286 Cl4 C1 Cl6 111.286
Cl5 C1 Cl6 110.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability