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

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-156.734243
Energy at 298.15K-156.741904
HF Energy-156.119556
Nuclear repulsion energy116.514694
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 CCD/cc-pVDZ
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 3193 3055 57.79      
2 A 3178 3040 0.93      
3 A 3066 2933 13.61      
4 A 1772 1695 3.03      
5 A 1497 1432 4.34      
6 A 1427 1366 1.74      
7 A 1292 1237 0.00      
8 A 1028 984 0.70      
9 A 885 847 0.44      
10 A 291 278 0.00      
11 A 3129 2993 0.00      
12 A 1483 1418 0.00      
13 A 1059 1013 0.00      
14 A 1002 959 0.00      
15 A 386 369 0.00      
16 A 116 111 0.00      
17 A 3129 2994 43.95      
18 A 1488 1424 9.39      
19 A 1071 1024 3.13      
20 A 702 671 30.70      
21 A 120 115 0.66      
22 A 3173 3036 23.36      
23 A 3158 3021 0.35      
24 A 3062 2930 39.80      
25 A 1492 1427 2.30      
26 A 1454 1391 6.03      
27 A 1391 1330 4.15      
28 A 1164 1113 0.13      
29 A 999 955 9.01      
30 A 563 538 5.14      

Unscaled Zero Point Vibrational Energy (zpe) 23882.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 22848.7 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 CCD/cc-pVDZ
ABC
0.53466 0.16712 0.13375

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.674 0.670
C2 0.000 -0.674 0.670
C3 0.000 1.597 -0.527
C4 0.000 -1.597 -0.527
H5 0.000 1.177 1.648
H6 0.000 -1.177 1.648
H7 0.000 1.054 -1.485
H8 0.000 -1.054 -1.485
H9 -0.889 2.256 -0.509
H10 0.889 2.256 -0.509
H11 0.889 -2.256 -0.509
H12 -0.889 -2.256 -0.509

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34861.51142.56761.09982.09382.18832.76252.16332.16333.28093.2809
C21.34862.56761.51142.09381.09982.76252.18833.28093.28092.16332.1633
C31.51142.56763.19462.21533.52521.10172.81911.10611.10613.95433.9543
C42.56761.51143.19463.52522.21532.81911.10173.95433.95431.10611.1061
H51.09982.09382.21533.52522.35393.13583.84642.57022.57024.15034.1503
H62.09381.09983.52522.21532.35393.84643.13584.15034.15032.57022.5702
H72.18832.76251.10172.81913.13583.84642.10791.78541.78543.56343.5634
H82.76252.18832.81911.10173.84643.13582.10793.56343.56341.78541.7854
H92.16333.28091.10613.95432.57024.15031.78543.56341.77724.84904.5116
H102.16333.28091.10613.95432.57024.15031.78543.56341.77724.51164.8490
H113.28092.16333.95431.10614.15032.57023.56341.78544.84904.51161.7772
H123.28092.16333.95431.10614.15032.57023.56341.78544.51164.84901.7772

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 127.641 C1 C2 H6 117.196
C1 C3 H7 112.808 C1 C3 H9 110.522
C1 C3 H10 110.522 C2 C1 C3 127.641
C2 C1 H5 117.196 C2 C4 H8 112.808
C2 C4 H11 110.522 C2 C4 H12 110.522
C3 C1 H5 115.163 C4 C2 H6 115.163
H7 C3 H9 107.931 H7 C3 H10 107.931
H8 C4 H11 107.931 H8 C4 H12 107.931
H9 C3 H10 106.900 H11 C4 H12 106.900
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability