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All results from a given calculation for CCl3CHO (trichloroacetaldehyde)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-1524.360879
Energy at 298.15K-1524.362048
HF Energy-1524.360879
Nuclear repulsion energy417.341736
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 PBEPBE/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' 2921 2894 28.13      
2 A' 1694 1678 82.12      
3 A' 1363 1351 7.27      
4 A' 970 961 28.19      
5 A' 784 777 120.45      
6 A' 586 580 95.75      
7 A' 396 392 7.89      
8 A' 288 285 4.02      
9 A' 239 237 2.15      
10 A' 187 186 2.16      
11 A" 999 990 32.89      
12 A" 647 641 177.43      
13 A" 311 309 3.59      
14 A" 219 217 0.69      
15 A" 85 85 5.14      

Unscaled Zero Point Vibrational Energy (zpe) 5844.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 5791.1 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 PBEPBE/3-21G
ABC
0.05745 0.05141 0.04685

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.022 0.000
C2 0.940 -1.235 0.000
O3 0.511 -2.386 0.000
Cl4 -1.730 -0.399 0.000
Cl5 0.511 1.003 1.525
Cl6 0.511 1.003 -1.525
H7 2.012 -0.942 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.54112.45161.82831.87131.87132.1870
C21.54111.22782.79812.74212.74211.1112
O32.45161.22782.99503.71593.71592.0823
Cl41.82832.79812.99503.05213.05213.7813
Cl51.87132.74213.71593.05213.05022.8915
Cl61.87132.74213.71593.05213.05022.8915
H72.18701.11122.08233.78132.89152.8915

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 124.225 C1 C2 H7 110.032
C2 C1 Cl4 112.011 C2 C1 Cl5 106.546
C2 C1 Cl6 106.546 O3 C2 H7 125.744
Cl4 C1 Cl5 111.170 Cl4 C1 Cl6 111.170
Cl5 C1 Cl6 109.175
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.749      
2 C 0.319      
3 O -0.318      
4 Cl 0.205      
5 Cl 0.152      
6 Cl 0.152      
7 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.306 0.277 0.000 1.335
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.673 -0.921 0.000
y -0.921 -59.933 0.000
z 0.000 0.000 -55.306
Traceless
 xyz
x 4.947 -0.921 0.000
y -0.921 -5.944 0.000
z 0.000 0.000 0.998
Polar
3z2-r21.995
x2-y27.261
xy-0.921
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.762 1.223 0.000
y 1.223 7.610 0.000
z 0.000 0.000 7.771


<r2> (average value of r2) Å2
<r2> 277.751
(<r2>)1/2 16.666