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

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-157.053145
Energy at 298.15K-157.060738
HF Energy-157.053145
Nuclear repulsion energy117.241840
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 PBEPBE/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3078 3041 49.04      
2 A1 3049 3012 9.31      
3 A1 2958 2922 14.43      
4 A1 1682 1662 5.97      
5 A1 1441 1423 5.49      
6 A1 1362 1346 5.65      
7 A1 1251 1236 0.03      
8 A1 991 979 0.81      
9 A1 856 845 0.56      
10 A1 278 274 0.01      
11 A2 3002 2966 0.00      
12 A2 1427 1410 0.00      
13 A2 1019 1006 0.00      
14 A2 969 957 0.00      
15 A2 387 382 0.00      
16 A2 139 138 0.00      
17 B1 3002 2966 32.31      
18 B1 1431 1414 12.28      
19 B1 1023 1010 2.95      
20 B1 670 662 39.10      
21 B1 122 121 1.15      
22 B2 3058 3021 15.56      
23 B2 3038 3002 3.17      
24 B2 2956 2920 39.11      
25 B2 1435 1418 3.96      
26 B2 1389 1372 13.57      
27 B2 1338 1321 0.50      
28 B2 1120 1106 0.25      
29 B2 962 950 20.19      
30 B2 553 546 7.01      

Unscaled Zero Point Vibrational Energy (zpe) 22991.2 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 22713.0 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 PBEPBE/Def2TZVPP
ABC
0.54230 0.16930 0.13553

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.674 0.648
C2 0.000 -0.674 0.648
C3 0.000 1.629 -0.512
C4 0.000 -1.629 -0.512
H5 0.000 1.164 1.627
H6 0.000 -1.164 1.627
H7 0.000 1.137 -1.489
H8 0.000 -1.137 -1.489
H9 -0.881 2.289 -0.478
H10 0.881 2.289 -0.478
H11 0.881 -2.289 -0.478
H12 -0.881 -2.289 -0.478

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34761.50232.57831.09452.08212.18682.80122.15722.15723.29003.2900
C21.34762.57831.50232.08211.09452.80122.18683.29003.29002.15722.1572
C31.50232.57833.25792.18813.51741.09452.93361.10161.10164.01644.0164
C42.57831.50233.25793.51742.18812.93361.09454.01644.01641.10161.1016
H51.09452.08212.18813.51742.32793.11593.87332.54372.54374.13884.1388
H62.08211.09453.51742.18812.32793.87333.11594.13884.13882.54372.5437
H72.18682.80121.09452.93363.11593.87332.27381.76861.76863.67963.6796
H82.80122.18682.93361.09453.87333.11592.27383.67963.67961.76861.7686
H92.15723.29001.10164.01642.54374.13881.76863.67961.76214.90624.5789
H102.15723.29001.10164.01642.54374.13881.76863.67961.76214.57894.9062
H113.29002.15724.01641.10164.13882.54373.67961.76864.90624.57891.7621
H123.29002.15724.01641.10164.13882.54373.67961.76864.57894.90621.7621

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 129.478 C1 C2 H6 116.604
C1 C3 H7 113.806 C1 C3 H9 110.936
C1 C3 H10 110.936 C2 C1 C3 129.478
C2 C1 H5 116.604 C2 C4 H8 113.806
C2 C4 H11 110.936 C2 C4 H12 110.936
C3 C1 H5 113.917 C4 C2 H6 113.917
H7 C3 H9 107.285 H7 C3 H10 107.285
H8 C4 H11 107.285 H8 C4 H12 107.285
H9 C3 H10 106.212 H11 C4 H12 106.212
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.120      
2 C -0.120      
3 C -0.204      
4 C -0.204      
5 H 0.082      
6 H 0.082      
7 H 0.070      
8 H 0.070      
9 H 0.086      
10 H 0.086      
11 H 0.086      
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
  0.000 0.000 -0.267 0.267
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.248 0.000 0.000
y 0.000 -25.270 0.000
z 0.000 0.000 -26.448
Traceless
 xyz
x -2.389 0.000 0.000
y 0.000 2.078 0.000
z 0.000 0.000 0.311
Polar
3z2-r20.622
x2-y2-2.978
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.878 0.000 0.000
y 0.000 10.287 0.000
z 0.000 0.000 7.251


<r2> (average value of r2) Å2
<r2> 99.780
(<r2>)1/2 9.989