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 CH2ClCHCHCH3 (2-Butene, 1-chloro-)

using model chemistry: wB97X-D/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at wB97X-D/STO-3G
Rotational Constants (cm-1) from geometry optimized at wB97X-D/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at wB97X-D/STO-3G
 hartrees
Energy at 0K-609.897561
Energy at 298.15K-609.904317
HF Energy-609.897561
Nuclear repulsion energy 
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 wB97X-D/STO-3G
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 3528 3528 0.48      
2 A 3506 3506 5.10      
3 A 3498 3498 2.55      
4 A 3496 3496 0.03      
5 A 3479 3479 14.40      
6 A 3378 3378 0.61      
7 A 3341 3341 0.12      
8 A 1911 1911 10.83      
9 A 1683 1683 7.20      
10 A 1673 1673 5.39      
11 A 1637 1637 1.44      
12 A 1584 1584 2.84      
13 A 1449 1449 3.67      
14 A 1432 1432 1.28      
15 A 1385 1385 36.91      
16 A 1291 1291 1.05      
17 A 1205 1205 2.64      
18 A 1170 1170 1.41      
19 A 1165 1165 5.27      
20 A 1089 1089 18.29      
21 A 1030 1030 7.14      
22 A 945 945 3.25      
23 A 880 880 21.03      
24 A 786 786 20.40      
25 A 520 520 2.17      
26 A 368 368 2.68      
27 A 287 287 1.65      
28 A 183 183 1.46      
29 A 139 139 1.22      
30 A 69 69 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 24051.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 24051.1 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 wB97X-D/STO-3G
ABC
0.45174 0.04857 0.04666

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.785 0.840 0.115
C2 0.542 0.172 0.454
C3 1.626 0.245 -0.331
C4 2.974 -0.396 -0.011
Cl5 -2.143 -0.403 -0.105
H6 -1.117 1.520 0.928
H7 -0.715 1.415 -0.829
H8 0.571 -0.384 1.404
H9 1.574 0.803 -1.281
H10 2.941 -0.933 0.949
H11 3.260 -1.109 -0.804
H12 3.765 0.373 0.043

Atom - Atom Distances (Å)
  C1 C2 C3 C4 Cl5 H6 H7 H8 H9 H10 H11 H12
C11.52452.52393.95941.85371.11021.10792.23582.74184.21024.58354.5753
C21.52451.34032.54002.80232.18922.18441.10102.11492.68703.25713.2552
C32.52391.34031.52613.83103.27632.66422.12561.10342.18062.17392.1751
C43.95942.54001.52615.11754.61354.18982.78862.23851.10111.10441.1044
Cl51.85372.80233.83105.11752.41192.42273.10494.08045.21855.49295.9605
H61.11022.18923.27634.61352.41191.80612.58793.55464.74145.39125.0925
H71.10792.18442.66424.18982.42271.80613.14262.41174.69484.70834.6816
H82.23581.10102.12562.78863.10492.58793.14263.10222.47483.55393.5537
H92.74182.11491.10342.23854.08043.55462.41173.10223.13992.59352.5964
H104.21022.68702.18061.10115.21854.74144.69482.47483.13991.79071.7910
H114.58353.25712.17391.10445.49295.39124.70833.55392.59351.79071.7803
H124.57533.25522.17511.10445.96055.09254.68163.55372.59641.79101.7803

picture of 2-Butene, 1-chloro- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.399 C1 C2 H8 115.831
C2 C1 Cl5 111.732 C2 C1 H6 111.410
C2 C1 H7 111.175 C2 C3 C4 124.661
C2 C3 H9 119.560 C3 C2 H8 120.769
C3 C4 H10 111.171 C3 C4 H11 110.440
C3 C4 H12 110.538 C4 C3 H9 115.778
Cl5 C1 H6 106.200 Cl5 C1 H7 107.073
H6 C1 H7 109.024 H10 C4 H11 108.568
H10 C4 H12 108.602 H11 C4 H12 107.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.102      
2 C -0.079      
3 C -0.060      
4 C -0.227      
5 Cl -0.171      
6 H 0.110      
7 H 0.108      
8 H 0.084      
9 H 0.079      
10 H 0.085      
11 H 0.088      
12 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.263 1.441 0.029 2.683
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.005 -2.499 -0.640
y -2.499 -35.137 -0.410
z -0.640 -0.410 -34.317
Traceless
 xyz
x -3.278 -2.499 -0.640
y -2.499 1.025 -0.410
z -0.640 -0.410 2.254
Polar
3z2-r24.507
x2-y2-2.868
xy-2.499
xz-0.640
yz-0.410


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.488 0.232 -0.734
y 0.232 2.904 -0.115
z -0.734 -0.115 3.335


<r2> (average value of r2) Å2
<r2> 232.907
(<r2>)1/2 15.261