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

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 C2V 1A1
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-156.708398
Energy at 298.15K-156.716080
HF Energy-156.120332
Nuclear repulsion energy117.715784
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 3257 3043 56.09      
2 A 3243 3030 2.45      
3 A 3128 2922 12.27      
4 A 1766 1650 2.57      
5 A 1560 1458 4.65      
6 A 1473 1377 3.38      
7 A 1326 1239 0.01      
8 A 1056 987 0.54      
9 A 898 839 0.42      
10 A 302 282 0.00      
11 A 3201 2991 0.00      
12 A 1542 1440 0.00      
13 A 1084 1012 0.00      
14 A 1010 944 0.00      
15 A 383 358 0.00      
16 A 112 105 0.00      
17 A 3201 2991 40.64      
18 A 1547 1446 8.75      
19 A 1102 1029 2.11      
20 A 710 664 32.23      
21 A 114 107 0.69      
22 A 3242 3029 21.38      
23 A 3222 3011 0.06      
24 A 3124 2920 31.69      
25 A 1551 1449 2.76      
26 A 1486 1388 4.78      
27 A 1432 1338 3.84      
28 A 1188 1110 0.75      
29 A 1017 951 9.31      
30 A 572 534 5.68      

Unscaled Zero Point Vibrational Energy (zpe) 24424.1 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 22821.8 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
0.54527 0.17032 0.13627

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 0.665
C2 0.000 -0.670 0.665
C3 0.000 1.582 -0.523
C4 0.000 -1.582 -0.523
H5 0.000 1.166 1.629
H6 0.000 -1.166 1.629
H7 0.000 1.042 -1.464
H8 0.000 -1.042 -1.464
H9 -0.876 2.231 -0.509
H10 0.876 2.231 -0.509
H11 0.876 -2.231 -0.509
H12 -0.876 -2.231 -0.509

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34081.49722.54661.08422.07442.16122.73222.13992.13993.24983.2498
C21.34082.54661.49722.07441.08422.73222.16123.24983.24982.13992.1399
C31.49722.54663.16502.19143.49071.08582.78831.08991.08993.91263.9126
C42.54661.49723.16503.49072.19142.78831.08583.91263.91261.08991.0899
H51.08422.07442.19143.49072.33263.09573.80062.54362.54364.10824.1082
H62.07441.08423.49072.19142.33263.80063.09574.10824.10822.54362.5436
H72.16122.73221.08582.78833.09573.80062.08391.75891.75893.52023.5202
H82.73222.16122.78831.08583.80063.09572.08393.52023.52021.75891.7589
H92.13993.24981.08993.91262.54364.10821.75893.52021.75214.79334.4616
H102.13993.24981.08993.91262.54364.10821.75893.52021.75214.46164.7933
H113.24982.13993.91261.08994.10822.54363.52021.75894.79334.46161.7521
H123.24982.13993.91261.08994.10822.54363.52021.75894.46164.79331.7521

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 127.530 C1 C2 H6 117.218
C1 C3 H7 112.614 C1 C3 H9 110.625
C1 C3 H10 110.625 C2 C1 C3 127.530
C2 C1 H5 117.218 C2 C4 H8 112.614
C2 C4 H11 110.625 C2 C4 H12 110.625
C3 C1 H5 115.251 C4 C2 H6 115.251
H7 C3 H9 107.888 H7 C3 H10 107.888
H8 C4 H11 107.888 H8 C4 H12 107.888
H9 C3 H10 106.981 H11 C4 H12 106.981
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability