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

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-156.710790
Energy at 298.15K-156.718546
Nuclear repulsion energy116.059644
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 MP2=FULL/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 3230 3018 0.00      
2 A 3219 3008 0.00      
3 A 3119 2915 0.00      
4 A 1775 1659 0.00      
5 A 1555 1453 0.00      
6 A 1468 1372 0.00      
7 A 1361 1272 0.00      
8 A 1205 1126 0.00      
9 A 905 846 0.00      
10 A 509 476 0.00      
11 A 3200 2990 44.50      
12 A 1541 1440 9.77      
13 A 1104 1032 0.76      
14 A 1021 954 27.25      
15 A 249 233 2.83      
16 A 173 162 0.90      
17 A 3200 2990 0.00      
18 A 1541 1440 0.00      
19 A 1088 1017 0.00      
20 A 747 698 0.00      
21 A 221 206 0.00      
22 A 3235 3022 71.93      
23 A 3218 3007 8.56      
24 A 3119 2914 53.53      
25 A 1561 1459 12.70      
26 A 1468 1372 3.18      
27 A 1366 1276 4.65      
28 A 1123 1049 1.00      
29 A 1016 949 10.38      
30 A 286 267 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 24411.2 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 22809.8 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 MP2=FULL/6-31G**
ABC
1.16057 0.12489 0.11763

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 0.000
C2 0.000 -0.669 0.000
C3 -1.231 1.519 0.000
C4 1.231 -1.519 0.000
H5 0.952 1.190 0.000
H6 -0.952 -1.190 0.000
H7 -2.129 0.904 0.000
H8 2.129 -0.904 0.000
H9 -1.264 2.166 0.876
H10 -1.264 2.166 -0.876
H11 1.264 -2.166 0.876
H12 1.264 -2.166 -0.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33781.49622.51041.08552.08842.14192.64692.14662.14663.22543.2254
C21.33782.51041.49622.08841.08552.64692.14193.22543.22542.14662.1466
C31.49622.51043.91042.20852.72281.08814.14261.09001.09004.53594.5359
C42.51041.49623.91042.72282.20854.14261.08814.53594.53591.09001.0900
H51.08552.08842.20852.72283.04793.09472.40152.57602.57603.48223.4822
H62.08841.08552.72282.20853.04792.40153.09473.48223.48222.57602.5760
H72.14192.64691.08814.14263.09472.40154.62581.76321.76324.65914.6591
H82.64692.14194.14261.08812.40153.09474.62584.65914.65911.76321.7632
H92.14663.22541.09004.53592.57603.48221.76324.65911.75285.01615.3135
H102.14663.22541.09004.53592.57603.48221.76324.65911.75285.31355.0161
H113.22542.14664.53591.09003.48222.57604.65911.76325.01615.31351.7528
H123.22542.14664.53591.09003.48222.57604.65911.76325.31355.01611.7528

picture of 2-Butene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.611 C1 C2 H6 118.670
C1 C3 H7 110.974 C1 C3 H9 111.236
C1 C3 H10 111.236 C2 C1 C3 124.611
C2 C1 H5 118.670 C2 C4 H8 110.974
C2 C4 H11 111.236 C2 C4 H12 111.236
C3 C1 H5 116.719 C4 C2 H6 116.719
H7 C3 H9 108.096 H7 C3 H10 108.096
H8 C4 H11 108.096 H8 C4 H12 108.096
H9 C3 H10 107.035 H11 C4 H12 107.035
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability