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

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-156.668732
Energy at 298.15K-156.676401
HF Energy-156.106679
Nuclear repulsion energy117.128813
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/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 A1 3193 3022 64.65      
2 A1 3179 3009 0.07      
3 A1 3074 2909 10.97      
4 A1 1789 1693 2.05      
5 A1 1553 1470 6.26      
6 A1 1478 1399 4.82      
7 A1 1330 1259 0.05      
8 A1 1059 1002 0.78      
9 A1 895 847 0.57      
10 A1 304 287 0.00      
11 A2 3130 2962 0.00      
12 A2 1536 1454 0.00      
13 A2 1090 1032 0.00      
14 A2 1002 948 0.00      
15 A2 387 367 0.00      
16 A2 115 108 0.00      
17 B1 3130 2963 46.44      
18 B1 1541 1459 10.70      
19 B1 1102 1043 1.97      
20 B1 709 672 35.21      
21 B1 109 104 0.58      
22 B2 3174 3004 23.92      
23 B2 3159 2990 0.23      
24 B2 3070 2906 34.23      
25 B2 1544 1461 3.40      
26 B2 1489 1410 5.82      
27 B2 1439 1362 2.02      
28 B2 1188 1125 0.79      
29 B2 1015 960 8.25      
30 B2 575 544 5.65      

Unscaled Zero Point Vibrational Energy (zpe) 24178.0 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 22884.4 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/6-31G*
ABC
0.54217 0.16825 0.13485

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.674 0.637
C2 0.000 -0.674 0.637
C3 0.000 1.661 -0.507
C4 0.000 -1.661 -0.507
H5 0.000 1.154 1.618
H6 0.000 -1.154 1.618
H7 0.000 1.202 -1.494
H8 0.000 -1.202 -1.494
H9 -0.880 2.316 -0.454
H10 0.880 2.316 -0.454
H11 0.880 -2.316 -0.454
H12 -0.880 -2.316 -0.454

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34841.51062.60011.09132.07422.19592.83982.15922.15923.30283.3028
C21.34842.60011.51062.07421.09132.83982.19593.30283.30282.15922.1592
C31.51062.60013.32132.18413.52611.08863.02851.09851.09854.07344.0734
C42.60011.51063.32133.52612.18413.02851.08864.07344.07341.09851.0985
H51.09132.07422.18413.52612.30733.11223.90312.53362.53364.13614.1361
H62.07421.09133.52612.18412.30733.90313.11224.13614.13612.53362.5336
H72.19592.83981.08863.02853.11223.90312.40471.75961.75963.77303.7730
H82.83982.19593.02851.08863.90313.11222.40473.77303.77301.75961.7596
H92.15923.30281.09854.07342.53364.13611.75963.77301.75994.95544.6324
H102.15923.30281.09854.07342.53364.13611.75963.77301.75994.63244.9554
H113.30282.15924.07341.09854.13612.53363.77301.75964.95544.63241.7599
H123.30282.15924.07341.09854.13612.53363.77301.75964.63244.95541.7599

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 130.770 C1 C2 H6 116.059
C1 C3 H7 114.330 C1 C3 H9 110.704
C1 C3 H10 110.704 C2 C1 C3 130.770
C2 C1 H5 116.059 C2 C4 H8 114.330
C2 C4 H11 110.704 C2 C4 H12 110.704
C3 C1 H5 113.171 C4 C2 H6 113.171
H7 C3 H9 107.130 H7 C3 H10 107.130
H8 C4 H11 107.130 H8 C4 H12 107.130
H9 C3 H10 106.456 H11 C4 H12 106.456
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability