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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-157.155510
Energy at 298.15K-157.163232
Nuclear repulsion energy116.155658
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 B1B95/6-311G*
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 3134 3004 0.00      
2 A 3119 2990 0.00      
3 A 3036 2911 0.00      
4 A 1768 1695 0.00      
5 A 1503 1441 0.00      
6 A 1421 1362 0.00      
7 A 1337 1281 0.00      
8 A 1174 1125 0.00      
9 A 883 846 0.00      
10 A 503 482 0.00      
11 A 3088 2960 57.81      
12 A 1492 1431 17.59      
13 A 1067 1023 0.56      
14 A 1001 959 38.67      
15 A 244 234 4.29      
16 A 174 167 1.07      
17 A 3088 2960 0.00      
18 A 1493 1431 0.00      
19 A 1067 1023 0.00      
20 A 752 721 0.00      
21 A 230 220 0.00      
22 A 3140 3010 101.53      
23 A 3118 2989 11.72      
24 A 3036 2910 76.63      
25 A 1512 1449 22.36      
26 A 1421 1362 5.80      
27 A 1330 1275 3.92      
28 A 1097 1052 3.21      
29 A 988 947 14.85      
30 A 282 270 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 23748.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 22765.0 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 B1B95/6-311G*
ABC
1.16894 0.12504 0.11785

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.580 0.000
C2 -0.323 -0.580 0.000
C3 -0.323 1.925 0.000
C4 0.323 -1.925 0.000
H5 1.413 0.569 0.000
H6 -1.413 -0.569 0.000
H7 -1.412 1.847 0.000
H8 1.412 -1.847 0.000
H9 -0.028 2.510 0.877
H10 -0.028 2.510 -0.877
H11 0.028 -2.510 0.877
H12 0.028 -2.510 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.32841.49272.50561.08962.08212.14832.66002.14842.14843.22553.2255
C21.32842.50561.49272.08211.08962.66002.14833.22553.22552.14842.1484
C31.49272.50563.90492.20342.72201.09114.15241.09401.09404.53484.5348
C42.50561.49273.90492.72202.20344.15241.09114.53484.53481.09401.0940
H51.08962.08212.20342.72203.04633.10032.41602.57162.57163.48773.4877
H62.08211.08962.72202.20343.04632.41603.10033.48773.48772.57162.5716
H72.14832.66001.09114.15243.10032.41604.64951.76671.76674.67174.6717
H82.66002.14834.15241.09112.41603.10034.64954.67174.67171.76671.7667
H92.14843.22551.09404.53482.57163.48771.76674.67171.75315.02015.3174
H102.14843.22551.09404.53482.57163.48771.76674.67171.75315.31745.0201
H113.22552.14844.53481.09403.48772.57164.67171.76675.02015.31741.7531
H123.22552.14844.53481.09403.48772.57164.67171.76675.31745.02011.7531

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 125.194 C1 C2 H6 118.541
C1 C3 H7 111.553 C1 C3 H9 111.384
C1 C3 H10 111.384 C2 C1 C3 125.194
C2 C1 H5 118.541 C2 C4 H8 111.553
C2 C4 H11 111.384 C2 C4 H12 111.384
C3 C1 H5 116.265 C4 C2 H6 116.265
H7 C3 H9 107.898 H7 C3 H10 107.898
H8 C4 H11 107.898 H8 C4 H12 107.898
H9 C3 H10 106.495 H11 C4 H12 106.495
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.179      
2 C -0.179      
3 C -0.677      
4 C -0.677      
5 H 0.189      
6 H 0.189      
7 H 0.220      
8 H 0.220      
9 H 0.224      
10 H 0.224      
11 H 0.224      
12 H 0.224      


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 -25.536 0.350 0.000
y 0.350 -25.326 0.000
z 0.000 0.000 -28.087
Traceless
 xyz
x 1.170 0.350 0.000
y 0.350 1.486 0.000
z 0.000 0.000 -2.656
Polar
3z2-r2-5.312
x2-y2-0.210
xy0.350
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.365 0.380 0.000
y 0.380 9.562 0.000
z 0.000 0.000 4.824


<r2> (average value of r2) Å2
<r2> 111.062
(<r2>)1/2 10.539