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

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-156.408733
Energy at 298.15K-156.416318
HF Energy-156.059731
Nuclear repulsion energy115.360422
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/SDD
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 3166 3056 90.31      
2 A 3138 3029 9.43      
3 A 3018 2914 21.87      
4 A 1685 1626 4.32      
5 A 1544 1490 8.63      
6 A 1471 1420 11.15      
7 A 1319 1273 0.68      
8 A 1046 1010 1.35      
9 A 858 829 0.79      
10 A 293 283 0.07      
11 A 3096 2989 0.00      
12 A 1521 1469 0.00      
13 A 1087 1049 0.00      
14 A 956 923 0.00      
15 A 374 361 0.00      
16 A 105 101 0.00      
17 A 3098 2990 70.06      
18 A 1530 1477 16.46      
19 A 1100 1062 2.35      
20 A 697 673 58.45      
21 A 105 101 1.02      
22 A 3135 3026 37.04      
23 A 3121 3013 2.19      
24 A 3015 2911 44.76      
25 A 1536 1483 8.99      
26 A 1462 1411 5.52      
27 A 1435 1385 0.89      
28 A 1180 1139 1.37      
29 A 994 959 11.36      
30 A 569 549 5.70      

Unscaled Zero Point Vibrational Energy (zpe) 23826.5 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 22999.7 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/SDD
ABC
0.52303 0.16313 0.13052

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.686 0.680
C2 0.000 -0.686 0.680
C3 0.000 1.619 -0.535
C4 0.000 -1.619 -0.535
H5 0.000 1.190 1.657
H6 0.000 -1.190 1.657
H7 0.000 1.064 -1.488
H8 0.000 -1.064 -1.488
H9 -0.892 2.273 -0.520
H10 0.892 2.273 -0.520
H11 0.892 -2.273 -0.520
H12 -0.892 -2.273 -0.520

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.37141.53252.60551.09922.11452.20082.78592.18102.18103.31533.3153
C21.37142.60551.53252.11451.09922.78592.20083.31533.31532.18102.1810
C31.53252.60553.23752.23433.56291.10222.84651.10601.10603.99273.9927
C42.60551.53253.23753.56292.23432.84651.10223.99273.99271.10601.1060
H51.09922.11452.23433.56292.37923.14743.86892.59072.59074.18664.1866
H62.11451.09923.56292.23432.37923.86893.14744.18664.18662.59072.5907
H72.20082.78591.10222.84653.14743.86892.12751.78681.78683.58673.5867
H82.78592.20082.84651.10223.86893.14742.12753.58673.58671.78681.7868
H92.18103.31531.10603.99272.59074.18661.78683.58671.78334.88334.5461
H102.18103.31531.10603.99272.59074.18661.78683.58671.78334.54614.8833
H113.31532.18103.99271.10604.18662.59073.58671.78684.88334.54611.7833
H123.31532.18103.99271.10604.18662.59073.58671.78684.54614.88331.7833

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 127.504 C1 C2 H6 117.286
C1 C3 H7 112.262 C1 C3 H9 110.456
C1 C3 H10 110.456 C2 C1 C3 127.504
C2 C1 H5 117.286 C2 C4 H8 112.262
C2 C4 H11 110.456 C2 C4 H12 110.456
C3 C1 H5 115.210 C4 C2 H6 115.210
H7 C3 H9 108.029 H7 C3 H10 108.029
H8 C4 H11 108.029 H8 C4 H12 108.029
H9 C3 H10 107.441 H11 C4 H12 107.441
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability