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: 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-1033.894189
Energy at 298.15K-1033.895308
HF Energy-1033.557589
Nuclear repulsion energy233.421181
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' 3527 3307 49.13      
2 A' 3262 3060 0.34      
3 A' 2278 2137 29.53      
4 A' 1333 1250 29.50      
5 A' 1048 983 59.92      
6 A' 721 676 74.46      
7 A' 671 629 10.48      
8 A' 443 416 5.20      
9 A' 265 248 0.20      
10 A' 210 197 3.85      
11 A" 1270 1191 28.77      
12 A" 736 690 213.20      
13 A" 681 639 7.04      
14 A" 449 421 0.67      
15 A" 143 134 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 8518.6 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 7988.7 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
0.09900 0.09507 0.05058

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 -1.642 2.060 0.000
C2 -0.737 1.254 0.000
C3 0.385 0.335 0.000
Cl4 0.385 -0.749 1.527
Cl5 0.385 -0.749 -1.527
H6 -2.458 2.747 0.000
H7 1.347 0.834 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.21222.66163.78563.78561.06663.2310
C21.21221.45002.75712.75712.27862.1258
C32.66161.45001.87281.87283.72821.0840
Cl43.78562.75711.87283.05454.75782.4008
Cl53.78562.75711.87283.05454.75782.4008
H61.06662.27863.72824.75784.75784.2588
H73.23102.12581.08402.40082.40084.2588

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 177.645 C2 C1 H6 178.462
C2 C3 Cl4 111.517 C2 C3 Cl5 111.517
C2 C3 H7 113.268 Cl4 C3 Cl5 109.275
Cl4 C3 H7 105.450 Cl5 C3 H7 105.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability