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

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-156.740436
Energy at 298.15K-156.748064
HF Energy-156.147424
Nuclear repulsion energy117.336824
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 MP2/6-311G**
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 3199 3039 57.03      
2 A 3184 3025 0.10      
3 A 3073 2920 12.87      
4 A 1729 1643 3.63      
5 A 1519 1443 5.62      
6 A 1433 1361 4.91      
7 A 1295 1230 0.03      
8 A 1032 981 0.54      
9 A 884 840 0.43      
10 A 295 280 0.00      
11 A 3138 2982 0.00      
12 A 1498 1424 0.00      
13 A 1059 1006 0.00      
14 A 982 933 0.00      
15 A 374 356 0.00      
16 A 107 102 0.00      
17 A 3139 2982 38.45      
18 A 1505 1430 12.09      
19 A 1075 1021 3.95      
20 A 693 659 39.06      
21 A 115 110 0.73      
22 A 3181 3023 20.52      
23 A 3164 3007 0.09      
24 A 3070 2917 33.77      
25 A 1510 1435 5.19      
26 A 1448 1376 6.38      
27 A 1394 1324 2.49      
28 A 1165 1107 0.28      
29 A 1000 950 10.63      
30 A 562 534 5.53      

Unscaled Zero Point Vibrational Energy (zpe) 23909.9 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 22719.2 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 MP2/6-311G**
ABC
0.53932 0.16988 0.13570

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.672 0.668
C2 0.000 -0.672 0.668
C3 0.000 1.584 -0.526
C4 0.000 -1.584 -0.526
H5 0.000 1.169 1.638
H6 0.000 -1.169 1.638
H7 0.000 1.038 -1.470
H8 0.000 -1.038 -1.470
H9 -0.881 2.235 -0.511
H10 0.881 2.235 -0.511
H11 0.881 -2.235 -0.511
H12 -0.881 -2.235 -0.511

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34391.50272.55251.08932.08072.17002.73822.14692.14693.25813.2581
C21.34392.55251.50272.08071.08932.73822.17003.25813.25812.14692.1469
C31.50272.55253.16782.20293.50151.09112.78641.09541.09543.91893.9189
C42.55251.50273.16783.50152.20292.78641.09113.91893.91891.09541.0954
H51.08932.08072.20293.50152.33853.11093.81182.55492.55494.12054.1205
H62.08071.08933.50152.20292.33853.81183.11094.12054.12052.55492.5549
H72.17002.73821.09112.78643.11093.81182.07511.76921.76923.52203.5220
H82.73822.17002.78641.09113.81183.11092.07513.52203.52201.76921.7692
H92.14693.25811.09543.91892.55494.12051.76923.52201.76224.80414.4692
H102.14693.25811.09543.91892.55494.12051.76923.52201.76224.46924.8041
H113.25812.14693.91891.09544.12052.55493.52201.76924.80414.46921.7622
H123.25812.14693.91891.09544.12052.55493.52201.76924.46924.80411.7622

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 127.362 C1 C2 H6 117.163
C1 C3 H7 112.593 C1 C3 H9 110.462
C1 C3 H10 110.462 C2 C1 C3 127.362
C2 C1 H5 117.163 C2 C4 H8 112.593
C2 C4 H11 110.462 C2 C4 H12 110.462
C3 C1 H5 115.475 C4 C2 H6 115.475
H7 C3 H9 108.018 H7 C3 H10 108.018
H8 C4 H11 108.018 H8 C4 H12 108.018
H9 C3 H10 107.089 H11 C4 H12 107.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability