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: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-1030.773332
Energy at 298.15K-1030.774614
HF Energy-1030.773332
Nuclear repulsion energy235.185994
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 mPW1PW91/3-21G
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' 3512 3352 61.85      
2 A' 3223 3077 1.49      
3 A' 2276 2173 40.78      
4 A' 1300 1241 21.95      
5 A' 1040 992 76.84      
6 A' 795 759 37.54      
7 A' 678 647 47.55      
8 A' 463 442 9.45      
9 A' 262 250 0.51      
10 A' 224 214 4.95      
11 A" 1187 1133 19.68      
12 A" 796 760 9.86      
13 A" 729 696 231.65      
14 A" 482 460 1.15      
15 A" 161 153 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 8563.0 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 8174.3 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 mPW1PW91/3-21G
ABC
0.09983 0.09758 0.05164

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.670 1.988 0.000
C2 -0.741 1.223 0.000
C3 0.390 0.357 0.000
Cl4 0.390 -0.733 1.519
Cl5 0.390 -0.733 -1.519
H6 -2.501 2.650 0.000
H7 1.346 0.873 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.20352.62763.73573.73571.06233.2150
C21.20351.42452.72252.72252.26582.1156
C32.62761.42451.86951.86953.68991.0857
Cl43.73572.72251.86953.03714.70222.4081
Cl53.73572.72251.86953.03714.70222.4081
H61.06232.26583.68994.70224.70224.2369
H73.21502.11561.08572.40812.40814.2369

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 177.965 C2 C1 H6 179.106
C2 C3 Cl4 110.761 C2 C3 Cl5 110.761
C2 C3 H7 114.193 Cl4 C3 Cl5 108.642
Cl4 C3 H7 106.094 Cl5 C3 H7 106.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.317      
2 C 0.239      
3 C -0.774      
4 Cl 0.088      
5 Cl 0.088      
6 H 0.311      
7 H 0.364      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.485 2.672 0.000 2.716
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.828 -3.269 0.000
y -3.269 -39.467 0.000
z 0.000 0.000 -46.379
Traceless
 xyz
x 5.096 -3.269 0.000
y -3.269 2.636 0.000
z 0.000 0.000 -7.731
Polar
3z2-r2-15.463
x2-y21.640
xy-3.269
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.566 -2.840 0.000
y -2.840 6.841 0.000
z 0.000 0.000 6.994


<r2> (average value of r2) Å2
<r2> 197.852
(<r2>)1/2 14.066