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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-156.998204
Energy at 298.15K-157.005843
Nuclear repulsion energy114.893677
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3058 3040 0.00      
2 A 3042 3024 0.00      
3 A 2953 2936 0.00      
4 A 1706 1696 0.00      
5 A 1408 1399 0.00      
6 A 1344 1336 0.00      
7 A 1272 1265 0.00      
8 A 1130 1123 0.00      
9 A 856 851 0.00      
10 A 489 487 0.00      
11 A 3011 2993 37.39      
12 A 1398 1390 12.49      
13 A 1017 1011 0.01      
14 A 964 958 24.50      
15 A 240 239 3.10      
16 A 182 181 1.82      
17 A 3011 2994 0.00      
18 A 1398 1390 0.00      
19 A 1009 1003 0.00      
20 A 726 722 0.00      
21 A 236 234 0.00      
22 A 3062 3044 78.50      
23 A 3044 3026 6.05      
24 A 2953 2935 70.86      
25 A 1418 1410 16.95      
26 A 1343 1335 1.58      
27 A 1261 1253 6.68      
28 A 1074 1068 5.77      
29 A 944 938 17.05      
30 A 273 272 1.35      

Unscaled Zero Point Vibrational Energy (zpe) 22909.6 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 22776.7 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 PBEPBE/cc-pVDZ
ABC
1.13906 0.12271 0.11562

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.326 0.589 0.000
C2 -0.326 -0.589 0.000
C3 -0.326 1.942 0.000
C4 0.326 -1.942 0.000
H5 1.432 0.578 0.000
H6 -1.432 -0.578 0.000
H7 -1.432 1.864 0.000
H8 1.432 -1.864 0.000
H9 -0.024 2.538 0.889
H10 -0.024 2.538 -0.889
H11 0.024 -2.538 0.889
H12 0.024 -2.538 -0.889

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34681.50092.53101.10672.11012.17092.69112.16962.16963.26483.2648
C21.34682.53101.50092.11011.10672.69112.17093.26483.26482.16962.1696
C31.50092.53103.93742.22512.75141.10864.19171.11191.11194.57984.5798
C42.53101.50093.93742.75142.22514.19171.10864.57984.57981.11191.1119
H51.10672.11012.22512.75143.08873.13962.44152.59842.59843.53243.5324
H62.11011.10672.75142.22513.08872.44153.13963.53243.53242.59842.5984
H72.17092.69111.10864.19173.13962.44154.70061.79611.79614.72034.7203
H82.69112.17094.19171.10862.44153.13964.70064.72034.72031.79611.7961
H92.16963.26481.11194.57982.59843.53241.79614.72031.77765.07545.3776
H102.16963.26481.11194.57982.59843.53241.79614.72031.77765.37765.0754
H113.26482.16964.57981.11193.53242.59844.72031.79615.07545.37761.7776
H123.26482.16964.57981.11193.53242.59844.72031.79615.37765.07541.7776

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 125.351 C1 C2 H6 118.310
C1 C3 H7 111.711 C1 C3 H9 111.407
C1 C3 H10 111.407 C2 C1 C3 125.351
C2 C1 H5 118.310 C2 C4 H8 111.711
C2 C4 H11 111.407 C2 C4 H12 111.407
C3 C1 H5 116.339 C4 C2 H6 116.339
H7 C3 H9 107.967 H7 C3 H10 107.967
H8 C4 H11 107.967 H8 C4 H12 107.967
H9 C3 H10 106.130 H11 C4 H12 106.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.078      
2 C -0.078      
3 C -0.018      
4 C -0.018      
5 H -0.020      
6 H -0.020      
7 H 0.027      
8 H 0.027      
9 H 0.044      
10 H 0.044      
11 H 0.044      
12 H 0.044      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.830 0.308 0.000
y 0.308 -25.005 0.000
z 0.000 0.000 -27.867
Traceless
 xyz
x 0.606 0.308 0.000
y 0.308 1.843 0.000
z 0.000 0.000 -2.449
Polar
3z2-r2-4.899
x2-y2-0.825
xy0.308
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.610 0.259 0.000
y 0.259 10.047 0.000
z 0.000 0.000 4.769


<r2> (average value of r2) Å2
<r2> 113.073
(<r2>)1/2 10.634