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

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-157.201692
Energy at 298.15K-157.209371
Nuclear repulsion energy116.490349
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 B3LYP/SDD
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 3173 3051 96.35      
2 A 3145 3023 8.50      
3 A 3029 2912 18.25      
4 A 1734 1667 5.40      
5 A 1521 1462 12.36      
6 A 1447 1391 16.10      
7 A 1309 1259 0.76      
8 A 1038 998 1.62      
9 A 873 839 1.12      
10 A 288 277 0.14      
11 A 3091 2972 0.00      
12 A 1510 1451 0.00      
13 A 1082 1040 0.00      
14 A 1023 983 0.00      
15 A 399 384 0.00      
16 A 127 122 0.00      
17 A 3093 2973 75.26      
18 A 1515 1457 24.00      
19 A 1080 1038 0.74      
20 A 714 686 67.23      
21 A 117 112 1.41      
22 A 3145 3023 33.96      
23 A 3127 3006 1.17      
24 A 3026 2909 53.60      
25 A 1513 1455 11.39      
26 A 1447 1391 10.24      
27 A 1418 1363 0.02      
28 A 1169 1124 1.94      
29 A 998 959 19.70      
30 A 572 550 8.78      

Unscaled Zero Point Vibrational Energy (zpe) 23860.4 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 22937.0 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 B3LYP/SDD
ABC
0.53648 0.16608 0.13312

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.677 0.670
C2 0.000 -0.677 0.670
C3 0.000 1.604 -0.527
C4 0.000 -1.604 -0.527
H5 0.000 1.179 1.641
H6 0.000 -1.179 1.641
H7 0.000 1.065 -1.480
H8 0.000 -1.065 -1.480
H9 -0.883 2.259 -0.510
H10 0.883 2.259 -0.510
H11 0.883 -2.259 -0.510
H12 -0.883 -2.259 -0.510

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.35311.51402.57531.09292.09412.18502.76682.16222.16223.28453.2845
C21.35312.57531.51402.09411.09292.76682.18503.28453.28452.16222.1622
C31.51402.57533.20712.20873.52731.09502.83331.10001.10003.96213.9621
C42.57531.51403.20713.52732.20872.83331.09503.96213.96211.10001.1000
H51.09292.09412.20873.52732.35833.12283.84362.56302.56304.15004.1500
H62.09411.09293.52732.20872.35833.84363.12284.15004.15002.56302.5630
H72.18502.76681.09502.83333.12283.84362.12911.77441.77443.57313.5731
H82.76682.18502.83331.09503.84363.12282.12913.57313.57311.77441.7744
H92.16223.28451.10003.96212.56304.15001.77443.57311.76674.85074.5176
H102.16223.28451.10003.96212.56304.15001.77443.57311.76674.51764.8507
H113.28452.16223.96211.10004.15002.56303.57311.77444.85074.51761.7667
H123.28452.16223.96211.10004.15002.56303.57311.77444.51764.85071.7667

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 127.754 C1 C2 H6 117.378
C1 C3 H7 112.759 C1 C3 H9 110.622
C1 C3 H10 110.622 C2 C1 C3 127.754
C2 C1 H5 117.378 C2 C4 H8 112.759
C2 C4 H11 110.622 C2 C4 H12 110.622
C3 C1 H5 114.868 C4 C2 H6 114.868
H7 C3 H9 107.878 H7 C3 H10 107.878
H8 C4 H11 107.878 H8 C4 H12 107.878
H9 C3 H10 106.846 H11 C4 H12 106.846
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.129      
2 C -0.129      
3 C -0.680      
4 C -0.680      
5 H 0.189      
6 H 0.189      
7 H 0.205      
8 H 0.205      
9 H 0.207      
10 H 0.207      
11 H 0.207      
12 H 0.207      


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 -0.217 0.217
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.971 0.000 0.000
y 0.000 -24.289 0.000
z 0.000 0.000 -25.404
Traceless
 xyz
x -3.124 0.000 0.000
y 0.000 2.398 0.000
z 0.000 0.000 0.726
Polar
3z2-r21.452
x2-y2-3.681
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.351 0.000 0.000
y 0.000 8.773 0.000
z 0.000 0.000 5.668


<r2> (average value of r2) Å2
<r2> 100.620
(<r2>)1/2 10.031