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

using model chemistry: BLYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-157.130604
Energy at 298.15K-157.138221
Nuclear repulsion energy116.449439
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 BLYP/6-31G**
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 3073 3049 74.14      
2 A 3051 3027 8.03      
3 A 2953 2930 13.29      
4 A 1684 1671 3.51      
5 A 1472 1461 3.22      
6 A 1392 1382 1.50      
7 A 1266 1256 0.02      
8 A 999 991 0.93      
9 A 846 840 0.27      
10 A 278 276 0.00      
11 A 2990 2967 0.00      
12 A 1458 1447 0.00      
13 A 1027 1019 0.00      
14 A 973 966 0.00      
15 A 382 379 0.00      
16 A 147 146 0.00      
17 A 2991 2967 58.36      
18 A 1462 1451 7.79      
19 A 1041 1033 0.63      
20 A 677 672 27.86      
21 A 129 128 0.95      
22 A 3053 3030 24.85      
23 A 3036 3013 2.15      
24 A 2950 2927 53.03      
25 A 1465 1454 1.34      
26 A 1408 1397 7.67      
27 A 1364 1353 5.60      
28 A 1128 1119 1.13      
29 A 956 949 14.37      
30 A 556 552 6.83      

Unscaled Zero Point Vibrational Energy (zpe) 23104.3 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 22926.4 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 BLYP/6-31G**
ABC
0.53775 0.16599 0.13315

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.674 0.668
C2 0.000 -0.674 0.668
C3 0.000 1.603 -0.525
C4 0.000 -1.603 -0.525
H5 0.000 1.178 1.643
H6 0.000 -1.178 1.643
H7 0.000 1.069 -1.486
H8 0.000 -1.069 -1.486
H9 -0.884 2.266 -0.509
H10 0.884 2.266 -0.509
H11 0.884 -2.266 -0.509
H12 -0.884 -2.266 -0.509

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34871.51182.57111.09742.09312.18942.77062.16772.16773.28803.2880
C21.34872.57111.51182.09311.09742.77062.18943.28803.28802.16772.1677
C31.51182.57113.20682.20923.52621.09952.83971.10491.10493.96903.9690
C42.57111.51183.20683.52622.20922.83971.09953.96903.96901.10491.1049
H51.09742.09312.20923.52622.35543.13063.85172.56822.56824.15574.1557
H62.09311.09743.52622.20922.35543.85173.13064.15574.15572.56822.5682
H72.18942.77061.09952.83973.13063.85172.13771.78021.78023.58563.5856
H82.77062.18942.83971.09953.85173.13062.13773.58563.58561.78021.7802
H92.16773.28801.10493.96902.56824.15571.78023.58561.76834.86454.5318
H102.16773.28801.10493.96902.56824.15571.78023.58561.76834.53184.8645
H113.28802.16773.96901.10494.15572.56823.58561.78024.86454.53181.7683
H123.28802.16773.96901.10494.15572.56823.58561.78024.53184.86451.7683

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 127.917 C1 C2 H6 117.303
C1 C3 H7 112.995 C1 C3 H9 110.915
C1 C3 H10 110.915 C2 C1 C3 127.917
C2 C1 H5 117.303 C2 C4 H8 112.995
C2 C4 H11 110.915 C2 C4 H12 110.915
C3 C1 H5 114.780 C4 C2 H6 114.780
H7 C3 H9 107.710 H7 C3 H10 107.710
H8 C4 H11 107.710 H8 C4 H12 107.710
H9 C3 H10 106.294 H11 C4 H12 106.294
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.320      
2 C -0.320      
3 C -0.035      
4 C -0.035      
5 H 0.102      
6 H 0.102      
7 H 0.102      
8 H 0.102      
9 H 0.096      
10 H 0.096      
11 H 0.055      
12 H 0.055      


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 -0.219 0.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.587 0.000 0.000
y 0.000 -24.896 0.000
z 0.000 0.000 -25.922
Traceless
 xyz
x -2.178 0.000 0.000
y 0.000 1.858 0.000
z 0.000 0.000 0.320
Polar
3z2-r20.640
x2-y2-2.691
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 100.859
(<r2>)1/2 10.043