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

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-157.173498
Energy at 298.15K-157.181212
Nuclear repulsion energy117.198480
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 B3PW91/cc-pVDZ
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 3164 3054 52.64      
2 A 3142 3032 4.98      
3 A 3033 2927 14.94      
4 A 1755 1693 4.58      
5 A 1461 1410 5.45      
6 A 1392 1343 3.22      
7 A 1280 1235 0.08      
8 A 1015 979 0.72      
9 A 880 850 0.64      
10 A 279 270 0.01      
11 A 3091 2983 0.00      
12 A 1448 1397 0.00      
13 A 1043 1007 0.00      
14 A 1001 966 0.00      
15 A 397 383 0.00      
16 A 150 145 0.00      
17 A 3091 2983 36.01      
18 A 1452 1401 12.40      
19 A 1049 1012 1.14      
20 A 696 671 34.84      
21 A 133 128 1.20      
22 A 3146 3036 18.50      
23 A 3129 3019 0.51      
24 A 3031 2925 43.18      
25 A 1459 1408 1.76      
26 A 1424 1374 12.07      
27 A 1362 1314 2.65      
28 A 1150 1109 0.19      
29 A 991 956 19.50      
30 A 566 546 7.81      

Unscaled Zero Point Vibrational Energy (zpe) 23603.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 22777.8 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 B3PW91/cc-pVDZ
ABC
0.54374 0.16893 0.13540

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 0.663
C2 0.000 -0.670 0.663
C3 0.000 1.587 -0.521
C4 0.000 -1.587 -0.521
H5 0.000 1.169 1.639
H6 0.000 -1.169 1.639
H7 0.000 1.052 -1.480
H8 0.000 -1.052 -1.480
H9 -0.883 2.249 -0.505
H10 0.883 2.249 -0.505
H11 0.883 -2.249 -0.505
H12 -0.883 -2.249 -0.505

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34051.49722.54911.09702.08292.17672.74912.15322.15323.26613.2661
C21.34052.54911.49722.08291.09702.74912.17673.26613.26612.15322.1532
C31.49722.54913.17492.20033.50241.09902.80821.10391.10393.93723.9372
C42.54911.49723.17493.50242.20032.80821.09903.93723.93721.10391.1039
H51.09702.08292.20033.50242.33883.12203.82972.55812.55814.13114.1311
H62.08291.09703.50242.20032.33883.82973.12204.13114.13112.55812.5581
H72.17672.74911.09902.80823.12203.82972.10341.77941.77943.55383.5538
H82.74912.17672.80821.09903.82973.12202.10343.55383.55381.77941.7794
H92.15323.26611.10393.93722.55814.13111.77943.55381.76654.83314.4988
H102.15323.26611.10393.93722.55814.13111.77943.55381.76654.49884.8331
H113.26612.15323.93721.10394.13112.55813.55381.77944.83314.49881.7665
H123.26612.15323.93721.10394.13112.55813.55381.77944.49884.83311.7665

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 127.776 C1 C2 H6 117.067
C1 C3 H7 113.050 C1 C3 H9 110.844
C1 C3 H10 110.844 C2 C1 C3 127.776
C2 C1 H5 117.067 C2 C4 H8 113.050
C2 C4 H11 110.844 C2 C4 H12 110.844
C3 C1 H5 115.157 C4 C2 H6 115.157
H7 C3 H9 107.759 H7 C3 H10 107.759
H8 C4 H11 107.759 H8 C4 H12 107.759
H9 C3 H10 106.284 H11 C4 H12 106.284
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.044      
2 C -0.044      
3 C -0.116      
4 C -0.116      
5 H 0.055      
6 H 0.055      
7 H 0.055      
8 H 0.055      
9 H 0.040      
10 H 0.040      
11 H 0.009      
12 H 0.009      


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 -0.243 0.243
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.692 0.000 0.000
y 0.000 -24.632 0.000
z 0.000 0.000 -25.851
Traceless
 xyz
x -2.450 0.000 0.000
y 0.000 2.139 0.000
z 0.000 0.000 0.311
Polar
3z2-r20.621
x2-y2-3.060
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> 99.514
(<r2>)1/2 9.976