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

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 C2V 1A1
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-156.996440
Energy at 298.15K-157.004069
Nuclear repulsion energy116.614894
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 3085 3067 52.81      
2 A 3062 3044 5.26      
3 A 2959 2942 15.55      
4 A 1697 1687 4.87      
5 A 1413 1405 4.61      
6 A 1344 1336 2.82      
7 A 1241 1234 0.08      
8 A 984 979 0.69      
9 A 859 854 0.58      
10 A 275 274 0.02      
11 A 3013 2996 0.00      
12 A 1399 1391 0.00      
13 A 1003 997 0.00      
14 A 963 958 0.00      
15 A 385 383 0.00      
16 A 155 154 0.00      
17 A 3013 2996 34.20      
18 A 1404 1395 11.34      
19 A 1012 1007 0.68      
20 A 672 668 31.78      
21 A 135 134 1.31      
22 A 3068 3050 18.71      
23 A 3050 3032 0.61      
24 A 2957 2939 41.53      
25 A 1412 1404 0.84      
26 A 1375 1367 13.51      
27 A 1316 1308 2.44      
28 A 1116 1109 0.18      
29 A 966 960 20.68      
30 A 552 549 8.10      

Unscaled Zero Point Vibrational Energy (zpe) 22941.0 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 22808.0 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
0.53733 0.16777 0.13433

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.675 0.667
C2 0.000 -0.675 0.667
C3 0.000 1.591 -0.523
C4 0.000 -1.591 -0.523
H5 0.000 1.179 1.650
H6 0.000 -1.179 1.650
H7 0.000 1.048 -1.488
H8 0.000 -1.048 -1.488
H9 -0.888 2.260 -0.511
H10 0.888 2.260 -0.511
H11 0.888 -2.260 -0.511
H12 -0.888 -2.260 -0.511

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.35001.50192.55961.10462.09872.18712.75932.16482.16483.28443.2844
C21.35002.55961.50192.09871.10462.75932.18713.28443.28442.16482.1648
C31.50192.55963.18232.21163.52101.10712.81031.11181.11183.95193.9519
C42.55961.50193.18233.52102.21162.81031.10713.95193.95191.11181.1118
H51.10462.09872.21163.52102.35873.14053.84812.57342.57344.15714.1571
H62.09871.10463.52102.21162.35873.84813.14054.15714.15712.57342.5734
H72.18712.75931.10712.81033.14053.84812.09661.79221.79223.56183.5618
H82.75932.18712.81031.10713.84813.14052.09663.56183.56181.79221.7922
H92.16483.28441.11183.95192.57344.15711.79223.56181.77674.85584.5191
H102.16483.28441.11183.95192.57344.15711.79223.56181.77674.51914.8558
H113.28442.16483.95191.11184.15712.57343.56181.79224.85584.51911.7767
H123.28442.16483.95191.11184.15712.57343.56181.79224.51914.85581.7767

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 127.590 C1 C2 H6 117.167
C1 C3 H7 113.046 C1 C3 H9 110.958
C1 C3 H10 110.958 C2 C1 C3 127.590
C2 C1 H5 117.167 C2 C4 H8 113.046
C2 C4 H11 110.958 C2 C4 H12 110.958
C3 C1 H5 115.243 C4 C2 H6 115.243
H7 C3 H9 107.743 H7 C3 H10 107.743
H8 C4 H11 107.743 H8 C4 H12 107.743
H9 C3 H10 106.076 H11 C4 H12 106.076
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 -0.089      
2 C -0.089      
3 C -0.023      
4 C -0.023      
5 H -0.010      
6 H -0.010      
7 H 0.029      
8 H 0.029      
9 H 0.046      
10 H 0.046      
11 H 0.046      
12 H 0.046      


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 -0.256 0.256
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.843 0.000 0.000
y 0.000 -24.846 0.000
z 0.000 0.000 -26.138
Traceless
 xyz
x -2.351 0.000 0.000
y 0.000 2.145 0.000
z 0.000 0.000 0.206
Polar
3z2-r20.412
x2-y2-2.997
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.737 0.000 0.000
y 0.000 9.640 0.000
z 0.000 0.000 6.666


<r2> (average value of r2) Å2
<r2> 100.355
(<r2>)1/2 10.018