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

using model chemistry: B3LYPultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-157.288811
Energy at 298.15K-157.296546
HF Energy-157.288811
Nuclear repulsion energy117.662200
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 B3LYPultrafine/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3139 3037 48.79      
2 A1 3110 3009 11.90      
3 A1 3016 2918 12.79      
4 A1 1726 1670 6.47      
5 A1 1495 1447 4.97      
6 A1 1419 1373 3.71      
7 A1 1295 1253 0.00      
8 A1 1025 992 0.90      
9 A1 868 840 0.48      
10 A1 287 278 0.00      
11 A2 3050 2951 0.00      
12 A2 1483 1435 0.00      
13 A2 1068 1033 0.00      
14 A2 1011 978 0.00      
15 A2 401 388 0.00      
16 A2 143 139 0.00      
17 B1 3050 2951 38.57      
18 B1 1486 1438 11.91      
19 B1 1067 1032 4.60      
20 B1 698 676 39.13      
21 B1 127 123 0.97      
22 B2 3118 3016 15.16      
23 B2 3096 2996 4.32      
24 B2 3014 2916 46.92      
25 B2 1490 1442 4.48      
26 B2 1441 1394 10.84      
27 B2 1396 1350 1.23      
28 B2 1160 1122 0.27      
29 B2 978 947 16.91      
30 B2 573 554 5.77      

Unscaled Zero Point Vibrational Energy (zpe) 23614.3 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 22846.9 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 B3LYPultrafine/aug-cc-pVTZ
ABC
0.54799 0.16956 0.13595

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.666 0.662
C2 0.000 -0.666 0.662
C3 0.000 1.587 -0.521
C4 0.000 -1.587 -0.521
H5 0.000 1.165 1.627
H6 0.000 -1.165 1.627
H7 0.000 1.057 -1.472
H8 0.000 -1.057 -1.472
H9 -0.877 2.239 -0.500
H10 0.877 2.239 -0.500
H11 0.877 -2.239 -0.500
H12 -0.877 -2.239 -0.500

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33121.50042.54511.08582.06872.16972.74252.14402.14403.24953.2495
C21.33122.54511.50042.06871.08582.74252.16973.24953.24952.14402.1440
C31.50042.54513.17482.18953.49121.08832.81001.09281.09283.92613.9261
C42.54511.50043.17483.49122.18952.81001.08833.92613.92611.09281.0928
H51.08582.06872.18953.49122.32913.10043.81262.53922.53924.10844.1084
H62.06871.08583.49122.18952.32913.81263.10044.10844.10842.53922.5392
H72.16972.74251.08832.81003.10043.81262.11401.76381.76383.54673.5467
H82.74252.16972.81001.08833.81263.10042.11403.54673.54671.76381.7638
H92.14403.24951.09283.92612.53924.10841.76383.54671.75334.80994.4789
H102.14403.24951.09283.92612.53924.10841.76383.54671.75334.47894.8099
H113.24952.14403.92611.09284.10842.53923.54671.76384.80994.47891.7533
H123.24952.14403.92611.09284.10842.53923.54671.76384.47894.80991.7533

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 127.907 C1 C2 H6 117.355
C1 C3 H7 112.922 C1 C3 H9 110.557
C1 C3 H10 110.557 C2 C1 C3 127.907
C2 C1 H5 117.355 C2 C4 H8 112.922
C2 C4 H11 110.557 C2 C4 H12 110.557
C3 C1 H5 114.738 C4 C2 H6 114.738
H7 C3 H9 107.934 H7 C3 H10 107.934
H8 C4 H11 107.934 H8 C4 H12 107.934
H9 C3 H10 106.689 H11 C4 H12 106.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.215      
2 C -0.215      
3 C -0.631      
4 C -0.631      
5 H 0.289      
6 H 0.289      
7 H 0.278      
8 H 0.278      
9 H 0.140      
10 H 0.140      
11 H 0.140      
12 H 0.140      


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 -0.262 0.262
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.313 0.000 0.000
y 0.000 -25.457 0.000
z 0.000 0.000 -26.575
Traceless
 xyz
x -2.297 0.000 0.000
y 0.000 1.987 0.000
z 0.000 0.000 0.310
Polar
3z2-r20.621
x2-y2-2.856
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.222 0.000 0.000
y 0.000 10.181 0.000
z 0.000 0.000 7.381


<r2> (average value of r2) Å2
<r2> 99.514
(<r2>)1/2 9.976