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: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-1034.349347
Energy at 298.15K-1034.350045
HF Energy-1033.642873
Nuclear repulsion energy214.749794
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 MP4/6-31G*
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' 3103 2963        
2 A' 2272 2169        
3 A' 1515 1446        
4 A' 1344 1283        
5 A' 1129 1078        
6 A' 743 709        
7 A' 627 599        
8 A' 364 347        
9 A' 232 221        
10 A' 92 88        
11 A" 3160 3017        
12 A" 1227 1171        
13 A" 941 898        
14 A" 171 164        
15 A" 165 158        

Unscaled Zero Point Vibrational Energy (zpe) 8541.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 8155.0 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 MP4/6-31G*
ABC
0.57134 0.03101 0.02958

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.197 0.228 0.000
C2 0.000 0.471 0.000
C3 -1.400 0.886 0.000
Cl4 2.791 -0.212 0.000
Cl5 -2.528 -0.521 0.000
H6 -1.630 1.480 0.891
H7 -1.630 1.480 -0.891

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.22142.67861.65403.79963.21773.2177
C21.22141.45982.87372.71582.11402.1140
C32.67861.45984.33231.80381.09511.0951
Cl41.65402.87374.33235.32844.81734.8173
Cl53.79962.71581.80385.32842.36732.3673
H63.21772.11401.09514.81732.36731.7812
H73.21772.11401.09514.81732.36731.7812

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 174.960 C2 C1 Cl4 176.055
C2 C3 Cl5 112.214 C2 C3 H6 110.866
C2 C3 H7 110.866 Cl5 C3 H6 106.940
Cl5 C3 H7 106.940 H6 C3 H7 108.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability