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 CH2ClCCCl (1,3-dichloropropyne)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-1034.723076
Energy at 298.15K-1034.716617
HF Energy-1033.646326
Nuclear repulsion energy216.652387
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3277 3277 12.43      
2 A' 2564 2564 62.73      
3 A' 1612 1612 0.60      
4 A' 1434 1434 76.61      
5 A' 1173 1173 2.20      
6 A' 797 797 78.52      
7 A' 677 677 27.23      
8 A' 497 497 0.14      
9 A' 318 318 0.68      
10 A' 106 106 1.11      
11 A" 3339 3339 1.43      
12 A" 1320 1320 0.43      
13 A" 1009 1009 0.07      
14 A" 433 433 0.44      
15 A" 202 202 5.50      

Unscaled Zero Point Vibrational Energy (zpe) 9377.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9377.4 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 CBS-Q
ABC
0.56440 0.03130 0.02982

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.158 0.242 0.000
C2 0.000 0.497 0.000
C3 -1.420 0.846 0.000
Cl4 2.768 -0.123 0.000
Cl5 -2.478 -0.604 0.000
H6 -1.674 1.419 0.881
H7 -1.674 1.419 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.18582.64791.65033.73323.19093.1909
C21.18581.46232.83602.71172.10442.1044
C32.64791.46234.29821.79511.08131.0813
Cl41.65032.83604.29825.26774.78334.7833
Cl53.73322.71171.79515.26772.34852.3485
H63.19092.10441.08134.78332.34851.7627
H73.19092.10441.08134.78332.34851.7627

picture of 1,3-dichloropropyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 178.613 C2 C1 Cl4 179.668
C2 C3 Cl5 112.303 C2 C3 H6 110.760
C2 C3 H7 110.760 Cl5 C3 H6 106.826
Cl5 C3 H7 106.826 H6 C3 H7 109.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability