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

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

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/6-31+G**
 hartrees
Energy at 0K-156.716349
Energy at 298.15K-156.723969
HF Energy-156.123854
Nuclear repulsion energy117.580757
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/6-31+G**
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 3248 3051 60.08      
2 A 3234 3038 0.56      
3 A 3118 2928 15.77      
4 A 1748 1641 5.99      
5 A 1547 1453 6.10      
6 A 1464 1375 4.54      
7 A 1320 1240 0.09      
8 A 1053 989 0.33      
9 A 893 838 0.55      
10 A 300 282 0.00      
11 A 3190 2996 0.00      
12 A 1522 1429 0.00      
13 A 1070 1005 0.00      
14 A 991 931 0.00      
15 A 371 349 0.00      
16 A 101 95 0.00      
17 A 3190 2996 33.13      
18 A 1530 1437 12.45      
19 A 1091 1025 7.12      
20 A 700 657 46.76      
21 A 106 99 1.11      
22 A 3232 3035 19.44      
23 A 3214 3018 0.13      
24 A 3115 2925 35.78      
25 A 1537 1443 5.91      
26 A 1477 1387 7.33      
27 A 1425 1338 2.57      
28 A 1183 1111 0.28      
29 A 1011 950 10.83      
30 A 570 535 5.00      

Unscaled Zero Point Vibrational Energy (zpe) 24273.7 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 22797.9 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/6-31+G**
ABC
0.54398 0.16991 0.13594

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.672 0.665
C2 0.000 -0.672 0.665
C3 0.000 1.584 -0.524
C4 0.000 -1.584 -0.524
H5 0.000 1.166 1.631
H6 0.000 -1.166 1.631
H7 0.000 1.043 -1.465
H8 0.000 -1.043 -1.465
H9 -0.877 2.232 -0.509
H10 0.877 2.232 -0.509
H11 0.877 -2.232 -0.509
H12 -0.877 -2.232 -0.509

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34441.49862.55071.08492.07682.16262.73502.14052.14053.25333.2533
C21.34442.55071.49862.07681.08492.73502.16263.25333.25332.14052.1405
C31.49862.55073.16882.19503.49431.08642.79071.09041.09043.91633.9163
C42.55071.49863.16883.49432.19502.79071.08643.91633.91631.09041.0904
H51.08492.07682.19503.49432.33273.09903.80372.54652.54654.11094.1109
H62.07681.08493.49432.19502.33273.80373.09904.11094.11092.54652.5465
H72.16262.73501.08642.79073.09903.80372.08531.76061.76063.52283.5228
H82.73502.16262.79071.08643.80373.09902.08533.52283.52281.76061.7606
H92.14053.25331.09043.91632.54654.11091.76063.52281.75384.79704.4649
H102.14053.25331.09043.91632.54654.11091.76063.52281.75384.46494.7970
H113.25332.14053.91631.09044.11092.54653.52281.76064.79704.46491.7538
H123.25332.14053.91631.09044.11092.54653.52281.76064.46494.79701.7538

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 127.496 C1 C2 H6 117.096
C1 C3 H7 112.590 C1 C3 H9 110.540
C1 C3 H10 110.540 C2 C1 C3 127.496
C2 C1 H5 117.096 C2 C4 H8 112.590
C2 C4 H11 110.540 C2 C4 H12 110.540
C3 C1 H5 115.408 C4 C2 H6 115.408
H7 C3 H9 107.953 H7 C3 H10 107.953
H8 C4 H11 107.953 H8 C4 H12 107.953
H9 C3 H10 107.057 H11 C4 H12 107.057
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability