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All results from a given calculation for CCl3CHO (trichloroacetaldehyde)

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-1522.646034
Energy at 298.15K-1522.647299
HF Energy-1522.157715
Nuclear repulsion energy415.173696
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/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' 3022 2929 25.26      
2 A' 1683 1631 54.10      
3 A' 1433 1389 7.03      
4 A' 996 965 30.42      
5 A' 823 798 69.82      
6 A' 596 578 61.25      
7 A' 397 385 3.40      
8 A' 291 282 3.37      
9 A' 247 240 3.11      
10 A' 197 191 1.68      
11 A" 1031 1000 30.28      
12 A" 691 670 100.87      
13 A" 316 307 1.70      
14 A" 221 214 1.46      
15 A" 87 84 6.79      

Unscaled Zero Point Vibrational Energy (zpe) 6015.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 5830.4 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/3-21G
ABC
0.05718 0.05077 0.04624

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.066 0.017 0.000
C2 0.950 -1.246 0.000
O3 0.509 -2.396 0.000
Cl4 -1.734 -0.414 0.000
Cl5 0.509 1.017 1.530
Cl6 0.509 1.017 -1.530
H7 2.019 -0.986 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.54222.45341.85071.88051.88052.1959
C21.54221.23152.81062.76702.76701.1003
O32.45341.23152.99343.73993.73992.0664
Cl41.85072.81062.99343.06893.06893.7968
Cl51.88052.76703.73993.06893.05962.9379
Cl61.88052.76703.73993.06893.05962.9379
H72.19591.10032.06643.79682.93792.9379

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.999 C1 C2 H7 111.306
C2 C1 Cl4 111.542 C2 C1 Cl5 107.474
C2 C1 Cl6 107.474 O3 C2 H7 124.695
Cl4 C1 Cl5 110.670 Cl4 C1 Cl6 110.670
Cl5 C1 Cl6 108.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability