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All results from a given calculation for CCl3CHO (trichloroacetaldehyde)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-1523.198362
Energy at 298.15K-1523.199839
HF Energy-1522.481699
Nuclear repulsion energy427.507645
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 MP2/3-21G*
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' 3051 2903 28.83      
2 A' 1631 1552 45.27      
3 A' 1438 1368 4.78      
4 A' 975 928 41.48      
5 A' 843 802 68.96      
6 A' 628 597 68.08      
7 A' 432 411 3.72      
8 A' 322 306 3.64      
9 A' 272 259 1.84      
10 A' 210 200 2.66      
11 A" 1045 994 30.52      
12 A" 718 683 117.00      
13 A" 333 316 2.37      
14 A" 247 235 1.38      
15 A" 94 89 5.98      

Unscaled Zero Point Vibrational Energy (zpe) 6119.3 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 5821.3 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 MP2/3-21G*
ABC
0.06111 0.05335 0.04920

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.050 0.048 0.000
C2 0.937 -1.234 0.000
O3 0.487 -2.386 0.000
Cl4 -1.669 -0.378 0.000
Cl5 0.487 0.988 1.471
Cl6 0.487 0.988 -1.471
H7 2.003 -0.972 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.55952.47311.77121.79931.79932.2035
C21.55951.23632.74302.70312.70311.0984
O32.47311.23632.94603.68103.68102.0738
Cl41.77122.74302.94602.94592.94593.7200
Cl51.79932.70313.68102.94592.94122.8817
Cl61.79932.70313.68102.94592.94122.8817
H72.20351.09842.07383.72002.88172.8817

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.994 C1 C2 H7 110.810
C2 C1 Cl4 110.725 C2 C1 Cl5 106.963
C2 C1 Cl6 106.963 O3 C2 H7 125.196
Cl4 C1 Cl5 111.191 Cl4 C1 Cl6 111.191
Cl5 C1 Cl6 109.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability