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: CCSD(T)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-1034.437492
Energy at 298.15K-1034.438616
HF Energy-1033.693677
Nuclear repulsion energy238.048910
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 CCSD(T)=FULL/cc-pVDZ
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' 3462 3335        
2 A' 3153 3037        
3 A' 2170 2091        
4 A' 1276 1229        
5 A' 1007 970        
6 A' 712 685        
7 A' 636 613        
8 A' 453 436        
9 A' 275 265        
10 A' 210 202        
11 A" 1225 1180        
12 A" 775 747        
13 A" 636 612        
14 A" 456 439        
15 A" 146 141        

Unscaled Zero Point Vibrational Energy (zpe) 8295.7 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 7990.5 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 CCSD(T)=FULL/cc-pVDZ
ABC
0.10514 0.09686 0.05256

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.666 2.031 0.000
C2 -0.751 1.213 0.000
C3 0.391 0.294 0.000
Cl4 0.391 -0.729 1.482
Cl5 0.391 -0.729 -1.482
H6 -2.491 2.726 0.000
H7 1.342 0.846 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.22722.69243.74793.74791.07863.2330
C21.22721.46612.69682.69682.30562.1252
C32.69241.46611.80071.80073.77111.0994
Cl43.74792.69681.80072.96304.73732.3624
Cl53.74792.69681.80072.96304.73732.3624
H61.07862.30563.77114.73734.73734.2691
H73.23302.12521.09942.36242.36244.2691

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 176.993 C2 C1 H6 178.315
C2 C3 Cl4 110.865 C2 C3 Cl5 110.865
C2 C3 H7 111.059 Cl4 C3 Cl5 110.724
Cl4 C3 H7 106.582 Cl5 C3 H7 106.582
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability