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

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-156.734020
Energy at 298.15K-156.741705
HF Energy-156.137297
Nuclear repulsion energy115.356354
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 QCISD/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 3129 2995 0.00      
2 A 3111 2979 0.00      
3 A 3029 2900 0.00      
4 A 1761 1686 0.00      
5 A 1524 1459 0.00      
6 A 1452 1390 0.00      
7 A 1347 1290 0.00      
8 A 1186 1136 0.00      
9 A 889 852 0.00      
10 A 505 484 0.00      
11 A 3087 2955 55.89      
12 A 1511 1446 15.72      
13 A 1086 1040 1.09      
14 A 985 943 39.46      
15 A 244 234 3.96      
16 A 162 155 0.64      
17 A 3087 2956 0.00      
18 A 1511 1447 0.00      
19 A 1077 1032 0.00      
20 A 741 709 0.00      
21 A 207 198 0.00      
22 A 3135 3002 79.87      
23 A 3109 2977 20.10      
24 A 3028 2899 64.99      
25 A 1530 1465 19.80      
26 A 1451 1390 6.49      
27 A 1353 1296 2.01      
28 A 1101 1054 1.46      
29 A 1004 961 10.30      
30 A 285 273 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 23813.3 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 22798.8 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 QCISD/6-311G*
ABC
1.14921 0.12332 0.11619

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 0.000
C2 0.000 -0.670 0.000
C3 -1.237 1.531 0.000
C4 1.237 -1.531 0.000
H5 0.959 1.197 0.000
H6 -0.959 -1.197 0.000
H7 -2.146 0.918 0.000
H8 2.146 -0.918 0.000
H9 -1.265 2.183 0.883
H10 -1.265 2.183 -0.883
H11 1.265 -2.183 0.883
H12 1.265 -2.183 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34001.50672.52431.09382.09862.15992.66952.16072.16073.24333.2433
C21.34002.52431.50672.09861.09382.66952.15993.24333.24332.16072.1607
C31.50672.52433.93562.22052.74161.09594.17581.09801.09804.56384.5638
C42.52431.50673.93562.74162.22054.17581.09594.56384.56381.09801.0980
H51.09382.09862.22052.74163.06683.11662.42552.58762.58763.50663.5066
H62.09861.09382.74162.22053.06682.42553.11663.50663.50662.58762.5876
H72.15992.66951.09594.17583.11662.42554.66761.77601.77604.69354.6935
H82.66952.15994.17581.09592.42553.11664.66764.69354.69351.77601.7760
H92.16073.24331.09804.56382.58763.50661.77604.69351.76555.04605.3459
H102.16073.24331.09804.56382.58763.50661.77604.69351.76555.34595.0460
H113.24332.16074.56381.09803.50662.58764.69351.77605.04605.34591.7655
H123.24332.16074.56381.09803.50662.58764.69351.77605.34595.04601.7655

picture of 2-Butene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.834 C1 C2 H6 118.795
C1 C3 H7 111.195 C1 C3 H9 111.129
C1 C3 H10 111.129 C2 C1 C3 124.834
C2 C1 H5 118.795 C2 C4 H8 111.195
C2 C4 H11 111.129 C2 C4 H12 111.129
C3 C1 H5 116.371 C4 C2 H6 116.371
H7 C3 H9 108.099 H7 C3 H10 108.099
H8 C4 H11 108.099 H8 C4 H12 108.099
H9 C3 H10 107.020 H11 C4 H12 107.020
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability