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: CISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-1033.889696
Energy at 298.15K-1033.890792
HF Energy-1033.554231
Nuclear repulsion energy210.215031
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 CISD/6-31G
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' 3183 2985 7.50      
2 A' 2415 2264 42.26      
3 A' 1558 1461 1.50      
4 A' 1361 1276 50.58      
5 A' 1120 1050 13.63      
6 A' 678 636 62.00      
7 A' 606 568 19.10      
8 A' 428 401 0.44      
9 A' 284 266 1.08      
10 A' 92 87 1.38      
11 A" 3249 3047 0.84      
12 A" 1250 1172 0.30      
13 A" 949 890 0.62      
14 A" 378 355 0.15      
15 A" 180 169 6.34      

Unscaled Zero Point Vibrational Energy (zpe) 8864.9 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 8313.5 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 CISD/6-31G
ABC
0.51061 0.03013 0.02861

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.171 0.235 0.000
C2 0.000 0.534 0.000
C3 -1.402 0.936 0.000
Cl4 2.841 -0.215 0.000
Cl5 -2.563 -0.562 0.000
H6 -1.670 1.496 0.894
H7 -1.670 1.496 -0.894

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.20882.66771.72963.81863.23473.2347
C21.20881.45912.93832.78772.12472.1247
C32.66771.45914.39721.89571.08821.0882
Cl41.72962.93834.39725.41574.90704.9070
Cl53.81862.78771.89575.41572.41572.4157
H63.23472.12471.08824.90702.41571.7879
H73.23472.12471.08824.90702.41571.7879

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 178.293 C2 C1 Cl4 179.245
C2 C3 Cl5 111.734 C2 C3 H6 112.226
C2 C3 H7 112.226 Cl5 C3 H6 104.849
Cl5 C3 H7 104.849 H6 C3 H7 110.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability