return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-157.180708
Energy at 298.15K-157.188283
HF Energy-157.180708
Nuclear repulsion energy117.388293
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 B97D3/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 3089 3046 65.37      
2 A1 3061 3018 13.03      
3 A1 2966 2925 15.91      
4 A1 1690 1667 5.28      
5 A1 1464 1444 4.28      
6 A1 1386 1367 3.53      
7 A1 1269 1251 0.02      
8 A1 1001 987 0.81      
9 A1 854 842 0.38      
10 A1 278 274 0.00      
11 A2 3006 2964 0.00      
12 A2 1452 1431 0.00      
13 A2 1035 1020 0.00      
14 A2 979 966 0.00      
15 A2 386 381 0.00      
16 A2 119 118 0.00      
17 B1 3006 2964 50.83      
18 B1 1456 1436 9.92      
19 B1 1041 1027 2.79      
20 B1 675 665 35.64      
21 B1 107 106 0.91      
22 B2 3068 3025 21.85      
23 B2 3048 3005 4.08      
24 B2 2964 2923 54.27      
25 B2 1459 1439 3.22      
26 B2 1409 1390 10.85      
27 B2 1363 1344 1.72      
28 B2 1133 1117 0.44      
29 B2 963 949 17.84      
30 B2 560 553 6.36      

Unscaled Zero Point Vibrational Energy (zpe) 23143.6 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 22819.6 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 B97D3/cc-pVTZ
ABC
0.54376 0.16938 0.13563

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 0.664
C2 0.000 -0.669 0.664
C3 0.000 1.586 -0.522
C4 0.000 -1.586 -0.522
H5 0.000 1.169 1.634
H6 0.000 -1.169 1.634
H7 0.000 1.052 -1.475
H8 0.000 -1.052 -1.475
H9 -0.880 2.243 -0.507
H10 0.880 2.243 -0.507
H11 0.880 -2.243 -0.507
H12 -0.880 -2.243 -0.507

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33781.49992.54841.09042.07752.17342.74532.15022.15023.25963.2596
C21.33782.54841.49992.07751.09042.74532.17343.25963.25962.15022.1502
C31.49992.54843.17282.19583.49821.09282.80481.09781.09783.92943.9294
C42.54841.49993.17283.49822.19582.80481.09283.92943.92941.09781.0978
H51.09042.07752.19583.49822.33733.11083.82002.55132.55134.12254.1225
H62.07751.09043.49822.19582.33733.82003.11084.12254.12252.55132.5513
H72.17342.74531.09282.80483.11083.82002.10301.76961.76963.54493.5449
H82.74532.17342.80481.09283.82003.11082.10303.54493.54491.76961.7696
H92.15023.25961.09783.92942.55134.12251.76963.54491.75904.81894.4864
H102.15023.25961.09783.92942.55134.12251.76963.54491.75904.48644.8189
H113.25962.15023.92941.09784.12252.55133.54491.76964.81894.48641.7590
H123.25962.15023.92941.09784.12252.55133.54491.76964.48644.81891.7590

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 129.800 C1 C2 H6 116.481
C1 C3 H7 113.939 C1 C3 H9 110.887
C1 C3 H10 110.887 C2 C1 C3 129.800
C2 C1 H5 116.481 C2 C4 H8 113.939
C2 C4 H11 110.887 C2 C4 H12 110.887
C3 C1 H5 113.718 C4 C2 H6 113.718
H7 C3 H9 107.243 H7 C3 H10 107.243
H8 C4 H11 107.243 H8 C4 H12 107.243
H9 C3 H10 106.257 H11 C4 H12 106.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.110      
2 C -0.110      
3 C -0.247      
4 C -0.247      
5 H 0.095      
6 H 0.095      
7 H 0.084      
8 H 0.084      
9 H 0.089      
10 H 0.089      
11 H 0.089      
12 H 0.089      


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 -0.248 0.248
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.972 0.000 0.000
y 0.000 -25.229 0.000
z 0.000 0.000 -26.288
Traceless
 xyz
x -2.213 0.000 0.000
y 0.000 1.900 0.000
z 0.000 0.000 0.313
Polar
3z2-r20.626
x2-y2-2.742
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.499 0.000 0.000
y 0.000 10.056 0.000
z 0.000 0.000 7.082


<r2> (average value of r2) Å2
<r2> 99.567
(<r2>)1/2 9.978