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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3B3
 hartrees
Energy at 0K-157.058241
Energy at 298.15K-157.051688
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 B3LYP/6-31G*
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 3159 3034 69.39      
2 A 3136 3012 8.99      
3 A 3035 2915 12.08      
4 A 1755 1685 3.11      
5 A 1527 1466 4.85      
6 A 1448 1391 2.61      
7 A 1307 1255 0.04      
8 A 1036 995 0.83      
9 A 877 842 0.41      
10 A 290 279 0.00      
11 A 3075 2953 0.00      
12 A 1512 1452 0.00      
13 A 1070 1028 0.00      
14 A 1012 972 0.00      
15 A 395 380 0.00      
16 A 149 143 0.00      
17 A 3076 2954 55.79      
18 A 1516 1456 9.98      
19 A 1081 1038 0.95      
20 A 700 672 32.12      
21 A 131 125 0.89      
22 A 3138 3014 22.39      
23 A 3121 2997 3.98      
24 A 3032 2912 49.88      
25 A 1519 1459 2.42      
26 A 1461 1403 6.47      
27 A 1414 1358 5.09      
28 A 1170 1123 1.17      
29 A 990 951 13.50      
30 A 571 548 6.87      

Unscaled Zero Point Vibrational Energy (zpe) 23850.4 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 22903.6 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 B3LYP/6-31G*
ABC
0.54400 0.16815 0.13486

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 0.664
C2 0.000 -0.669 0.664
C3 0.000 1.593 -0.522
C4 0.000 -1.593 -0.522
H5 0.000 1.169 1.633
H6 0.000 -1.169 1.633
H7 0.000 1.061 -1.477
H8 0.000 -1.061 -1.477
H9 -0.880 2.251 -0.505
H10 0.880 2.251 -0.505
H11 0.880 -2.251 -0.505
H12 -0.880 -2.251 -0.505

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33841.50342.55451.09072.07852.17652.75282.15472.15473.26613.2661
C21.33842.55451.50342.07851.09072.75282.17653.26613.26612.15472.1547
C31.50342.55453.18692.19633.50401.09342.82121.09861.09863.94373.9437
C42.55451.50343.18693.50402.19632.82121.09343.94373.94371.09861.0986
H51.09072.07852.19633.50402.33893.11213.82742.55272.55274.12864.1286
H62.07851.09073.50402.19632.33893.82743.11214.12864.12862.55272.5527
H72.17652.75281.09342.82123.11213.82742.12241.77041.77043.56213.5621
H82.75282.17652.82121.09343.82743.11212.12243.56213.56211.77041.7704
H92.15473.26611.09863.94372.55274.12861.77043.56211.76014.83354.5016
H102.15473.26611.09863.94372.55274.12861.77043.56211.76014.50164.8335
H113.26612.15473.94371.09864.12862.55273.56211.77044.83354.50161.7601
H123.26612.15473.94371.09864.12862.55273.56211.77044.50164.83351.7601

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 127.935 C1 C2 H6 117.301
C1 C3 H7 112.938 C1 C3 H9 110.845
C1 C3 H10 110.845 C2 C1 C3 127.935
C2 C1 H5 117.301 C2 C4 H8 112.938
C2 C4 H11 110.845 C2 C4 H12 110.845
C3 C1 H5 114.764 C4 C2 H6 114.764
H7 C3 H9 107.731 H7 C3 H10 107.731
H8 C4 H11 107.731 H8 C4 H12 107.731
H9 C3 H10 106.467 H11 C4 H12 106.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.488 0.102   -0.155
2 H 0.154 -0.006   -0.155
3 H 0.154 -0.006   -0.091
4 H 0.152 0.002   -0.091
5 C -0.488 0.102   0.097
6 H 0.154 -0.006   0.097
7 H 0.154 -0.006   0.056
8 H 0.152 0.002   0.056
9 C -0.091 -0.186   0.046
10 H 0.118 0.093   0.048
11 C -0.091 -0.186   0.048
12 H 0.118 0.093   0.046


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 -0.179 0.000 0.179
CHELPG 0.000 -0.215 0.001 0.215
AIM        
ESP 0.018 0.000 -0.259 0.260


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 99.736
(<r2>)1/2 9.987