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: QCISD/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 QCISD/6-31G
 hartrees
Energy at 0K-1529.907532
Energy at 298.15K-1529.908798
HF Energy-1529.426106
Nuclear repulsion energy415.483770
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 QCISD/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' 3052 2941 20.53      
2 A' 1677 1616 72.00      
3 A' 1423 1371 7.93      
4 A' 1047 1009 19.33      
5 A' 819 789 72.52      
6 A' 589 568 65.82      
7 A' 406 392 3.00      
8 A' 300 289 3.86      
9 A' 259 250 2.92      
10 A' 198 191 2.22      
11 A" 1011 974 29.95      
12 A" 671 646 104.11      
13 A" 316 304 1.46      
14 A" 227 219 1.65      
15 A" 73 70 9.31      

Unscaled Zero Point Vibrational Energy (zpe) 6034.2 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 5814.6 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 QCISD/6-31G
ABC
0.05699 0.05086 0.04656

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.066 0.012 0.000
C2 0.952 -1.247 0.000
O3 0.509 -2.404 0.000
Cl4 -1.737 -0.391 0.000
Cl5 0.509 1.009 1.528
Cl6 0.509 1.009 -1.528
H7 2.030 -1.015 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.53922.45691.84731.87721.87722.2162
C21.53921.23982.82132.76002.76001.1025
O32.45691.23983.01583.73983.73982.0600
Cl41.84732.82133.01583.05583.05583.8178
Cl51.87722.76003.73983.05583.05532.9570
Cl61.87722.76003.73983.05583.05532.9570
H72.21621.10252.06003.81782.95702.9570

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.925 C1 C2 H7 113.017
C2 C1 Cl4 112.519 C2 C1 Cl5 107.367
C2 C1 Cl6 107.367 O3 C2 H7 123.058
Cl4 C1 Cl5 110.260 Cl4 C1 Cl6 110.260
Cl5 C1 Cl6 108.938
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability