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: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-1035.376428
Energy at 298.15K-1035.377306
HF Energy-1035.162450
Nuclear repulsion energy215.427941
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 B2PLYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3131 2972 10.14      
2 A' 2328 2209 85.28      
3 A' 1520 1442 0.68      
4 A' 1337 1269 67.93      
5 A' 1134 1076 0.87      
6 A' 720 683 73.14      
7 A' 629 597 27.41      
8 A' 387 367 0.88      
9 A' 248 235 0.28      
10 A' 92 87 1.06      
11 A" 3185 3024 1.22      
12 A" 1227 1165 0.20      
13 A" 941 893 0.72      
14 A" 254 241 0.42      
15 A" 180 171 5.34      

Unscaled Zero Point Vibrational Energy (zpe) 8655.1 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 8215.4 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 B2PLYP/6-31G*
ABC
0.55310 0.03144 0.02991

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.179 0.228 0.000
C2 0.000 0.508 0.000
C3 -1.403 0.879 0.000
Cl4 2.776 -0.176 0.000
Cl5 -2.502 -0.565 0.000
H6 -1.659 1.459 0.887
H7 -1.659 1.459 -0.887

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.21162.66251.64753.76523.21803.2180
C21.21161.45112.85902.72232.10802.1080
C32.66251.45114.31001.81471.09041.0904
Cl41.64752.85904.31005.29254.80924.8092
Cl53.76522.72231.81475.29252.36552.3655
H63.21802.10801.09044.80922.36551.7739
H73.21802.10801.09044.80922.36551.7739

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 178.551 C2 C1 Cl4 179.197
C2 C3 Cl5 112.463 C2 C3 H6 111.288
C2 C3 H7 111.288 Cl5 C3 H6 106.340
Cl5 C3 H7 106.340 H6 C3 H7 108.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.244      
2 C 0.230      
3 C -0.507      
4 Cl 0.113      
5 Cl -0.054      
6 H 0.231      
7 H 0.231      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.635 1.687 0.000 1.803
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.074 -3.824 0.000
y -3.824 -40.519 0.000
z 0.000 0.000 -42.059
Traceless
 xyz
x -0.785 -3.824 0.000
y -3.824 1.548 0.000
z 0.000 0.000 -0.763
Polar
3z2-r2-1.525
x2-y2-1.555
xy-3.824
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.331 -0.305 0.000
y -0.305 5.246 0.000
z 0.000 0.000 3.893


<r2> (average value of r2) Å2
<r2> 307.320
(<r2>)1/2 17.531