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All results from a given calculation for CCl3CHO (trichloroacetaldehyde)

using model chemistry: MP2/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-72.148562
Energy at 298.15K-72.150077
HF Energy-71.278262
Nuclear repulsion energy116.586060
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/CEP-121G*
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' 3044 2900 28.86      
2 A' 1744 1661 105.49      
3 A' 1398 1332 8.09      
4 A' 1074 1023 30.32      
5 A' 888 846 98.28      
6 A' 639 609 60.31      
7 A' 449 428 2.89      
8 A' 321 306 4.19      
9 A' 274 261 1.25      
10 A' 202 193 3.05      
11 A" 1007 959 41.33      
12 A" 781 744 121.86      
13 A" 330 314 2.51      
14 A" 254 242 1.53      
15 A" 78 74 6.45      

Unscaled Zero Point Vibrational Energy (zpe) 6240.4 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 5945.9 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/CEP-121G*
ABC
0.06080 0.05397 0.05009

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.041 0.046 0.000
C2 0.936 -1.230 0.000
O3 0.492 -2.365 0.000
Cl4 -1.678 -0.350 0.000
Cl5 0.492 0.969 1.468
Cl6 0.492 0.969 -1.468
H7 2.015 -0.988 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.55882.45251.76471.79161.79162.2281
C21.55881.21812.75862.68142.68141.1057
O32.45251.21812.96123.64263.64262.0529
Cl41.76472.75862.96122.93322.93323.7480
Cl51.79162.68143.64262.93322.93612.8820
Cl61.79162.68143.64262.93322.93612.8820
H72.22811.10572.05293.74802.88202.8820

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.591 C1 C2 H7 112.372
C2 C1 Cl4 112.057 C2 C1 Cl5 106.119
C2 C1 Cl6 106.119 O3 C2 H7 124.037
Cl4 C1 Cl5 111.132 Cl4 C1 Cl6 111.132
Cl5 C1 Cl6 110.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability