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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-1029.385860
Energy at 298.15K-1029.386970
HF Energy-1028.844462
Nuclear repulsion energy237.679797
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 MP2/3-21G*
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' 3483 3314 49.65      
2 A' 3191 3036 0.59      
3 A' 2147 2042 24.18      
4 A' 1341 1276 16.18      
5 A' 980 932 57.22      
6 A' 707 672 56.89      
7 A' 669 637 14.54      
8 A' 451 429 3.47      
9 A' 276 263 0.21      
10 A' 213 202 3.67      
11 A" 1283 1220 19.44      
12 A" 732 696 199.78      
13 A" 651 619 5.35      
14 A" 453 431 0.20      
15 A" 141 134 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 8359.1 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 7952.1 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 MP2/3-21G*
ABC
0.10479 0.09664 0.05246

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.665 2.030 0.000
C2 -0.752 1.218 0.000
C3 0.391 0.312 0.000
Cl4 0.391 -0.733 1.483
Cl5 0.391 -0.733 -1.483
H6 -2.484 2.709 0.000
H7 1.337 0.850 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.22112.67863.74933.74931.06483.2252
C21.22111.45862.70452.70452.28562.1213
C32.67861.45861.81451.81453.74351.0883
Cl43.74932.70451.81452.96664.72402.3667
Cl53.74932.70451.81452.96664.72402.3667
H61.06482.28563.74354.72404.72404.2498
H73.22522.12131.08832.36672.36674.2498

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 176.773 C2 C1 H6 178.011
C2 C3 Cl4 110.967 C2 C3 Cl5 110.967
C2 C3 H7 111.973 Cl4 C3 Cl5 109.661
Cl4 C3 H7 106.540 Cl5 C3 H7 106.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability