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 CHCl2CCH (3,3-dichloropropyne)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-1034.393013
Energy at 298.15K-1034.394143
HF Energy-1033.714889
Nuclear repulsion energy240.404867
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 MP2/6-311G*
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' 3486 3313 57.33      
2 A' 3176 3018 1.12      
3 A' 2142 2035 23.09      
4 A' 1309 1244 33.96      
5 A' 1028 977 47.73      
6 A' 734 698 38.07      
7 A' 650 618 25.58      
8 A' 458 435 3.43      
9 A' 290 276 0.44      
10 A' 215 205 3.57      
11 A" 1303 1238 22.78      
12 A" 801 761 185.86      
13 A" 613 583 18.20      
14 A" 433 411 0.31      
15 A" 135 128 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 8385.6 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 7968.9 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 MP2/6-311G*
ABC
0.10707 0.09888 0.05352

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.625 2.034 0.000
C2 -0.745 1.193 0.000
C3 0.383 0.285 0.000
Cl4 0.383 -0.725 1.469
Cl5 0.383 -0.725 -1.469
H6 -2.438 2.724 0.000
H7 1.321 0.838 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.21772.66353.71523.71521.06613.1803
C21.21771.44822.66612.66612.28282.0963
C32.66351.44821.78251.78253.72961.0888
Cl43.71522.66611.78252.93834.69162.3407
Cl53.71522.66611.78252.93834.69162.3407
H61.06612.28283.72964.69164.69164.2062
H73.18032.09631.08882.34072.34074.2062

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 175.173 C2 C1 H6 176.649
C2 C3 Cl4 110.803 C2 C3 Cl5 110.803
C2 C3 H7 110.646 Cl4 C3 Cl5 111.014
Cl4 C3 H7 106.712 Cl5 C3 H7 106.712
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability