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/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-1530.454479
Energy at 298.15K-1530.456064
HF Energy-1529.578814
Nuclear repulsion energy433.243552
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/6-31G*
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' 3066 2889 28.98      
2 A' 1805 1700 85.67      
3 A' 1424 1342 7.87      
4 A' 1082 1020 30.77      
5 A' 902 850 91.43      
6 A' 652 614 59.62      
7 A' 461 434 2.58      
8 A' 333 313 3.94      
9 A' 284 268 1.55      
10 A' 212 200 3.06      
11 A" 1035 975 33.25      
12 A" 792 746 117.84      
13 A" 339 319 2.20      
14 A" 260 245 1.64      
15 A" 77 72 6.28      

Unscaled Zero Point Vibrational Energy (zpe) 6360.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 5993.2 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/6-31G*
ABC
0.06215 0.05495 0.05088

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.042 0.049 0.000
C2 0.923 -1.217 0.000
O3 0.486 -2.345 0.000
Cl4 -1.659 -0.355 0.000
Cl5 0.486 0.964 1.454
Cl6 0.486 0.964 -1.454
H7 2.000 -0.973 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.54222.43521.74861.77421.77422.2086
C21.54221.21022.72212.65722.65721.1041
O32.43521.21022.92593.61443.61442.0433
Cl41.74862.72212.92592.90762.90763.7108
Cl51.77422.65723.61442.90762.90842.8564
Cl61.77422.65723.61442.90762.90842.8564
H72.20861.10412.04333.71082.85642.8564

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.990 C1 C2 H7 112.087
C2 C1 Cl4 111.464 C2 C1 Cl5 106.279
C2 C1 Cl6 106.279 O3 C2 H7 123.923
Cl4 C1 Cl5 111.249 Cl4 C1 Cl6 111.249
Cl5 C1 Cl6 110.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability