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

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 C2V 1A1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-157.153616
Energy at 298.15K-157.161238
Nuclear repulsion energy117.818629
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 3163 3032 72.18      
2 A 3141 3011 6.63      
3 A 3043 2917 15.03      
4 A 1760 1687 4.65      
5 A 1504 1442 6.93      
6 A 1420 1362 7.69      
7 A 1296 1242 0.05      
8 A 1022 980 0.51      
9 A 879 843 0.61      
10 A 263 252 0.00      
11 A 3089 2961 0.00      
12 A 1494 1432 0.00      
13 A 1060 1016 0.00      
14 A 1004 963 0.00      
15 A 395 378 0.00      
16 A 124 119 0.00      
17 A 3089 2962 53.32      
18 A 1499 1437 16.13      
19 A 1063 1019 2.55      
20 A 694 665 45.36      
21 A 117 113 0.95      
22 A 3143 3013 27.16      
23 A 3125 2996 1.66      
24 A 3040 2914 47.47      
25 A 1500 1438 5.58      
26 A 1446 1387 10.70      
27 A 1391 1334 1.61      
28 A 1159 1111 0.44      
29 A 992 951 16.43      
30 A 562 539 7.14      

Unscaled Zero Point Vibrational Energy (zpe) 23738.8 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 22756.0 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
0.54894 0.17040 0.13655

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.666 0.661
C2 0.000 -0.666 0.661
C3 0.000 1.582 -0.519
C4 0.000 -1.582 -0.519
H5 0.000 1.163 1.628
H6 0.000 -1.163 1.628
H7 0.000 1.054 -1.472
H8 0.000 -1.054 -1.472
H9 -0.876 2.237 -0.503
H10 0.876 2.237 -0.503
H11 0.876 -2.237 -0.503
H12 -0.876 -2.237 -0.503

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33131.49372.53841.08792.06872.16722.73922.14262.14263.24773.2477
C21.33132.53841.49372.06871.08792.73922.16723.24773.24772.14262.1426
C31.49372.53843.16392.18793.48481.08912.80271.09391.09393.91833.9183
C42.53841.49373.16393.48482.18792.80271.08913.91833.91831.09391.0939
H51.08792.06872.18793.48482.32533.10193.81092.54262.54264.10724.1072
H62.06871.08793.48482.18792.32533.81093.10194.10724.10722.54262.5426
H72.16722.73921.08912.80273.10193.81092.10781.76221.76223.54073.5407
H82.73922.16722.80271.08913.81093.10192.10783.54073.54071.76221.7622
H92.14263.24771.09393.91832.54264.10721.76223.54071.75174.80504.4744
H102.14263.24771.09393.91832.54264.10721.76223.54071.75174.47444.8050
H113.24772.14263.91831.09394.10722.54263.54071.76224.80504.47441.7517
H123.24772.14263.91831.09394.10722.54263.54071.76224.47444.80501.7517

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 127.840 C1 C2 H6 117.182
C1 C3 H7 113.159 C1 C3 H9 110.851
C1 C3 H10 110.851 C2 C1 C3 127.840
C2 C1 H5 117.182 C2 C4 H8 113.159
C2 C4 H11 110.851 C2 C4 H12 110.851
C3 C1 H5 114.979 C4 C2 H6 114.979
H7 C3 H9 107.645 H7 C3 H10 107.645
H8 C4 H11 107.645 H8 C4 H12 107.645
H9 C3 H10 106.383 H11 C4 H12 106.383
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 -0.181      
2 C -0.181      
3 C -0.686      
4 C -0.686      
5 H 0.193      
6 H 0.193      
7 H 0.221      
8 H 0.221      
9 H 0.226      
10 H 0.226      
11 H 0.226      
12 H 0.226      


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 -0.187 0.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.079 0.000 0.000
y 0.000 -24.993 0.000
z 0.000 0.000 -25.939
Traceless
 xyz
x -2.613 0.000 0.000
y 0.000 2.015 0.000
z 0.000 0.000 0.597
Polar
3z2-r21.194
x2-y2-3.085
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.793 0.000 0.000
y 0.000 9.294 0.000
z 0.000 0.000 6.339


<r2> (average value of r2) Å2
<r2> 98.686
(<r2>)1/2 9.934