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: HSEh1PBE/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 HSEh1PBE/3-21G*
 hartrees
Energy at 0K-1524.889446
Energy at 298.15K-1524.890932
HF Energy-1524.889446
Nuclear repulsion energy430.317041
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 HSEh1PBE/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' 3035 2914 23.97      
2 A' 1788 1717 93.02      
3 A' 1413 1356 7.11      
4 A' 998 958 34.89      
5 A' 840 806 89.22      
6 A' 634 609 76.67      
7 A' 442 424 4.21      
8 A' 322 309 3.61      
9 A' 269 258 2.06      
10 A' 206 198 3.25      
11 A" 1047 1005 29.73      
12 A" 705 676 138.63      
13 A" 337 323 3.87      
14 A" 248 239 1.20      
15 A" 94 91 6.24      

Unscaled Zero Point Vibrational Energy (zpe) 6189.5 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 5941.3 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 HSEh1PBE/3-21G*
ABC
0.06151 0.05426 0.04995

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.041 0.047 0.000
C2 0.925 -1.220 0.000
O3 0.489 -2.352 0.000
Cl4 -1.667 -0.375 0.000
Cl5 0.489 0.976 1.467
Cl6 0.489 0.976 -1.467
H7 1.991 -0.946 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 Cl5 Cl6 H7
C11.54512.44081.75881.79301.79302.1887
C21.54511.21372.72652.67602.67601.1002
O32.44081.21372.92573.63683.63682.0574
Cl41.75882.72652.92572.93642.93643.7023
Cl51.79302.67603.63682.93642.93342.8461
Cl61.79302.67603.63682.93642.93342.8461
H72.18871.10022.05743.70232.84612.8461

picture of trichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 124.001 C1 C2 H7 110.537
C2 C1 Cl4 111.067 C2 C1 Cl5 106.344
C2 C1 Cl6 106.344 O3 C2 H7 125.462
Cl4 C1 Cl5 111.531 Cl4 C1 Cl6 111.531
Cl5 C1 Cl6 109.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.552      
2 C 0.312      
3 O -0.362      
4 Cl 0.140      
5 Cl 0.106      
6 Cl 0.106      
7 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.260 0.745 0.000 1.464
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.804 -0.580 0.000
y -0.580 -60.048 0.000
z 0.000 0.000 -54.104
Traceless
 xyz
x 5.272 -0.580 0.000
y -0.580 -7.095 0.000
z 0.000 0.000 1.822
Polar
3z2-r23.645
x2-y28.245
xy-0.580
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.465 1.020 0.000
y 1.020 7.383 0.000
z 0.000 0.000 7.318


<r2> (average value of r2) Å2
<r2> 262.938
(<r2>)1/2 16.215