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All results from a given calculation for CH3CHCHCH3 (2-Butene, (Z)-)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-154.243612
Energy at 298.15K-154.251326
Nuclear repulsion energy117.555535
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 HF/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 3771 3079 1.06      
2 A 3712 3031 2.39      
3 A 3566 2912 0.81      
4 A 2112 1724 0.95      
5 A 1835 1498 1.28      
6 A 1740 1421 0.04      
7 A 1495 1220 0.00      
8 A 1202 982 1.65      
9 A 1016 830 0.38      
10 A 324 265 0.01      
11 A 3724 3041 0.00      
12 A 1822 1487 0.00      
13 A 1279 1044 0.00      
14 A 1214 991 0.00      
15 A 459 375 0.00      
16 A 102 83 0.00      
17 A 3724 3041 1.96      
18 A 1826 1491 4.45      
19 A 1277 1042 0.00      
20 A 823 672 13.75      
21 A 98 80 0.21      
22 A 3762 3072 0.28      
23 A 3686 3009 20.42      
24 A 3562 2909 3.00      
25 A 1830 1494 2.10      
26 A 1742 1422 0.72      
27 A 1664 1358 20.61      
28 A 1361 1111 1.23      
29 A 1148 938 3.37      
30 A 652 532 4.97      

Unscaled Zero Point Vibrational Energy (zpe) 28262.8 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 23076.6 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 HF/STO-3G
ABC
0.53935 0.16977 0.13557

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.656 0.670
C2 0.000 -0.656 0.670
C3 0.000 1.591 -0.529
C4 0.000 -1.591 -0.529
H5 0.000 1.168 1.627
H6 0.000 -1.168 1.627
H7 0.000 1.053 -1.469
H8 0.000 -1.053 -1.469
H9 -0.877 2.234 -0.504
H10 0.877 2.234 -0.504
H11 0.877 -2.234 -0.504
H12 -0.877 -2.234 -0.504

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.31251.52042.54711.08452.05952.17642.73902.15382.15383.24093.2409
C21.31252.54711.52042.05951.08452.73902.17643.24093.24092.15382.1538
C31.52042.54713.18202.19653.50091.08352.80681.08801.08803.92463.9246
C42.54711.52043.18203.50092.19652.80681.08353.92463.92461.08801.0880
H51.08452.05952.19653.50092.33573.09823.81052.53892.53894.10894.1089
H62.05951.08453.50092.19652.33573.81053.09824.10894.10892.53892.5389
H72.17642.73901.08352.80683.09823.81052.10681.75941.75943.53703.5370
H82.73902.17642.80681.08353.81053.09822.10683.53703.53701.75941.7594
H92.15383.24091.08803.92462.53894.10891.75943.53701.75424.80054.4685
H102.15383.24091.08803.92462.53894.10891.75943.53701.75424.46854.8005
H113.24092.15383.92461.08804.10892.53893.53701.75944.80054.46851.7542
H123.24092.15383.92461.08804.10892.53893.53701.75944.46854.80051.7542

picture of 2-Butene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.938 C1 C2 H6 118.147
C1 C3 H7 112.317 C1 C3 H9 110.220
C1 C3 H10 110.220 C2 C1 C3 127.938
C2 C1 H5 118.147 C2 C4 H8 112.317
C2 C4 H11 110.220 C2 C4 H12 110.220
C3 C1 H5 113.915 C4 C2 H6 113.915
H7 C3 H9 108.241 H7 C3 H10 108.241
H8 C4 H11 108.241 H8 C4 H12 108.241
H9 C3 H10 107.447 H11 C4 H12 107.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.060      
2 C -0.060      
3 C -0.187      
4 C -0.187      
5 H 0.054      
6 H 0.054      
7 H 0.064      
8 H 0.064      
9 H 0.064      
10 H 0.064      
11 H 0.064      
12 H 0.064      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.126 0.126
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.657 0.000 0.000
y 0.000 -24.206 0.000
z 0.000 0.000 -24.740
Traceless
 xyz
x -1.184 0.000 0.000
y 0.000 0.992 0.000
z 0.000 0.000 0.191
Polar
3z2-r20.383
x2-y2-1.451
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.927 0.000 0.000
y 0.000 5.192 0.000
z 0.000 0.000 3.041


<r2> (average value of r2) Å2
<r2> 98.441
(<r2>)1/2 9.922