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All results from a given calculation for CH2ClCCCl (1,3-dichloropropyne)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-1034.511279
Energy at 298.15K-1034.512425
HF Energy-1033.668287
Nuclear repulsion energy216.433211
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 QCISD/6-31G(2df,p)
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' 3138 2973 6.30      
2 A' 2375 2250 55.18      
3 A' 1506 1427 0.91      
4 A' 1325 1255 52.25      
5 A' 1132 1072 0.46      
6 A' 759 719 52.98      
7 A' 633 599 19.91      
8 A' 439 416 0.07      
9 A' 288 273 0.74      
10 A' 95 90 0.91      
11 A" 3195 3027 0.16      
12 A" 1222 1158 0.29      
13 A" 935 886 0.22      
14 A" 352 334 0.17      
15 A" 185 175 5.21      

Unscaled Zero Point Vibrational Energy (zpe) 8788.7 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 8326.4 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 QCISD/6-31G(2df,p)
ABC
0.54657 0.03188 0.03030

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.167 0.219 0.000
C2 0.000 0.518 0.000
C3 -1.408 0.890 0.000
Cl4 2.760 -0.193 0.000
Cl5 -2.479 -0.554 0.000
H6 -1.661 1.470 0.887
H7 -1.661 1.470 -0.887

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.20452.66081.64543.72683.21623.2162
C21.20451.45632.84992.70122.10932.1093
C32.66081.45634.30621.79821.08921.0892
Cl41.64542.84994.30625.25134.80514.8051
Cl53.72682.70121.79825.25132.35642.3564
H63.21622.10931.08924.80512.35641.7742
H73.21622.10931.08924.80512.35641.7742

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 179.610 C2 C1 Cl4 179.912
C2 C3 Cl5 111.770 C2 C3 H6 111.094
C2 C3 H7 111.094 Cl5 C3 H6 106.811
Cl5 C3 H7 106.811 H6 C3 H7 109.064
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability