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All results from a given calculation for CHCl2CCH (3,3-dichloropropyne)

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-47.124867
Energy at 298.15K-47.125546
HF Energy-46.801285
Nuclear repulsion energy69.271683
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-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' 3452 3336 38.15      
2 A' 3190 3082 4.62      
3 A' 2066 1996 31.36      
4 A' 1276 1233 42.92      
5 A' 991 957 64.18      
6 A' 678 655 84.45      
7 A' 611 591 12.00      
8 A' 397 384 4.85      
9 A' 251 242 0.78      
10 A' 114 110 1.89      
11 A" 1239 1197 25.02      
12 A" 715 691 199.94      
13 A" 632 610 11.29      
14 A" 387 374 0.02      
15 A" 107 103 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 8052.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 7781.1 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 MP2/CEP-31G
ABC
0.09600 0.09076 0.04867

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.722 2.097 0.000
C2 -0.751 1.268 0.000
C3 0.400 0.326 0.000
Cl4 0.400 -0.758 1.550
Cl5 0.400 -0.758 -1.550
H6 -2.547 2.789 0.000
H7 1.371 0.849 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.27652.76403.88063.88061.07623.3357
C21.27651.48762.79922.79922.35272.1635
C32.76401.48761.89211.89213.84021.1027
Cl43.88062.79921.89213.10084.86502.4351
Cl53.88062.79921.89213.10084.86502.4351
H61.07622.35273.84024.86504.86504.3717
H73.33572.16351.10272.43512.43514.3717

picture of 3,3-dichloropropyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 178.792 C2 C1 H6 179.541
C2 C3 Cl4 111.273 C2 C3 Cl5 111.273
C2 C3 H7 112.433 Cl4 C3 Cl5 110.054
Cl4 C3 H7 105.767 Cl5 C3 H7 105.767
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability