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 CH3CClCHCH3 (2-Butene, 2-chloro-, (E)-)

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-613.829901
Energy at 298.15K-613.836822
Nuclear repulsion energy211.178876
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 B1B95/3-21G*
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' 3202 3058 8.03      
2 A' 3177 3034 11.88      
3 A' 3163 3020 9.00      
4 A' 3074 2935 7.57      
5 A' 3060 2922 19.10      
6 A' 1755 1676 13.68      
7 A' 1554 1484 14.86      
8 A' 1542 1472 7.40      
9 A' 1467 1401 12.38      
10 A' 1451 1386 3.00      
11 A' 1392 1330 2.89      
12 A' 1173 1120 49.54      
13 A' 1107 1057 20.03      
14 A' 1023 977 13.41      
15 A' 923 882 17.89      
16 A' 676 646 22.07      
17 A' 444 424 10.61      
18 A' 356 340 0.48      
19 A' 282 269 0.38      
20 A" 3133 2991 7.16      
21 A" 3111 2970 12.61      
22 A" 1547 1477 14.88      
23 A" 1538 1468 7.03      
24 A" 1105 1055 0.15      
25 A" 1097 1047 0.14      
26 A" 880 840 31.32      
27 A" 449 429 6.42      
28 A" 234 223 0.59      
29 A" 178 170 0.35      
30 A" 121 115 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 22105.2 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 21108.3 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 B1B95/3-21G*
ABC
0.24578 0.07993 0.06171

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.183 -1.097 0.000
H2 -2.682 -0.127 0.000
H3 -2.517 -1.654 0.883
H4 -2.517 -1.654 -0.883
C5 0.000 0.165 0.000
H6 -0.130 -1.907 0.000
C7 -0.686 -0.974 0.000
H8 -0.152 2.105 0.885
H9 -0.152 2.105 -0.885
C10 -0.513 1.572 0.000
Cl11 1.767 0.091 0.000
H12 -1.604 1.590 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 H9 C10 Cl11 H12
C11.09081.09591.09592.52182.20641.50273.89443.89443.14844.12512.7489
H21.09081.77141.77142.69743.11052.16823.48803.48802.75464.45412.0271
H31.09591.77141.76623.22862.55732.14404.44134.78023.89854.70933.4835
H41.09591.77141.76623.22862.55732.14404.78024.44133.89854.70933.4835
C52.52182.69743.22863.22862.07591.32932.13772.13771.49711.76882.1453
H62.20643.11052.55732.55732.07591.08564.10834.10833.49922.75503.7943
C71.50272.16822.14402.14401.32931.08563.24773.24772.55122.67372.7231
H83.89443.48804.44134.78022.13774.10833.24771.76921.09452.91951.7769
H93.89443.48804.78024.44132.13774.10833.24771.76921.09452.91951.7769
C103.14842.75463.89853.89851.49713.49922.55121.09451.09452.71911.0910
Cl114.12514.45414.70934.70931.76882.75502.67372.91952.91952.71913.6895
H122.74892.02713.48353.48352.14533.79432.72311.77691.77691.09103.6895

picture of 2-Butene, 2-chloro-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C7 C5 125.764 C1 C7 H6 116.034
H2 C1 H3 108.201 H2 C1 H4 108.201
H2 C1 C7 112.471 H3 C1 H4 107.381
H3 C1 C7 110.212 H4 C1 C7 110.212
C5 C7 H6 118.202 C5 C10 H8 110.173
C5 C10 H9 110.173 C5 C10 H12 111.001
C7 C5 C10 128.913 C7 C5 Cl11 118.630
H8 C10 H9 107.844 H8 C10 H12 108.786
H9 C10 H12 108.786 C10 C5 Cl11 112.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.655      
2 H 0.219      
3 H 0.230      
4 H 0.230      
5 C -0.157      
6 H 0.231      
7 C -0.171      
8 H 0.242      
9 H 0.242      
10 C -0.639      
11 Cl -0.000      
12 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.206 0.116 0.000 2.209
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.968 0.391 0.000
y 0.391 -34.926 0.000
z 0.000 0.000 -39.554
Traceless
 xyz
x -0.728 0.391 0.000
y 0.391 3.836 0.000
z 0.000 0.000 -3.107
Polar
3z2-r2-6.214
x2-y2-3.043
xy0.391
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.621 1.436 0.000
y 1.436 8.078 0.000
z 0.000 0.000 4.473


<r2> (average value of r2) Å2
<r2> 183.671
(<r2>)1/2 13.553