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 CH2CCHCH3 (1,2-Butadiene)

using model chemistry: B97D3/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-155.931747
Energy at 298.15K-155.936624
HF Energy-155.931747
Nuclear repulsion energy102.254235
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/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 A' 3073 3026 24.08      
2 A' 3060 3013 9.92      
3 A' 3055 3008 0.78      
4 A' 2969 2924 42.75      
5 A' 2001 1971 42.60      
6 A' 1472 1450 3.31      
7 A' 1440 1418 8.47      
8 A' 1374 1353 3.89      
9 A' 1331 1311 8.46      
10 A' 1126 1109 0.28      
11 A' 1066 1050 3.23      
12 A' 861 848 5.51      
13 A' 835 823 48.01      
14 A' 557 548 9.32      
15 A' 200 197 1.71      
16 A" 3127 3079 4.48      
17 A" 3018 2971 20.92      
18 A" 1453 1431 5.43      
19 A" 1036 1020 0.94      
20 A" 997 982 0.93      
21 A" 870 857 16.70      
22 A" 522 514 4.44      
23 A" 324 319 8.18      
24 A" 158 155 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 17961.6 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 17686.8 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 B97D3/aug-cc-pVTZ
ABC
1.14572 0.13949 0.13073

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.692 1.825 0.000
C2 0.000 0.715 0.000
C3 0.683 -0.400 0.000
C4 0.078 -1.782 0.000
H5 -0.991 2.309 0.928
H6 -0.991 2.309 -0.928
H7 1.773 -0.338 0.000
H8 -1.013 -1.736 0.000
H9 0.403 -2.347 -0.882
H10 0.403 -2.347 0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.30752.61523.68811.08881.08883.27853.57514.40224.4022
C21.30751.30762.49842.09352.09352.06162.65213.21203.2120
C32.61521.30761.50853.31663.31661.09152.15892.15582.1558
C43.68812.49841.50854.32874.32872.22641.09251.09691.0969
H51.08882.09353.31664.32871.85673.93724.14955.18604.8598
H61.08882.09353.31664.32871.85673.93724.14954.85985.1860
H73.27852.06161.09152.22643.93723.93723.11702.58692.5869
H83.57512.65212.15891.09254.14954.14953.11701.77691.7769
H94.40223.21202.15581.09695.18604.85982.58691.77691.7650
H104.40223.21202.15581.09694.85985.18602.58691.77691.7650

picture of 1,2-Butadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.547 C2 C1 H5 121.499
C2 C1 H6 121.499 C2 C3 C4 124.895
C2 C3 H7 118.201 C3 C4 H8 111.195
C3 C4 H9 110.684 C3 C4 H10 110.684
C4 C3 H7 116.904 H5 C1 H6 117.003
H8 C4 H9 108.507 H8 C4 H10 108.507
H9 C4 H10 107.135
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.762      
2 C 0.734      
3 C -0.417      
4 C -0.448      
5 H 0.187      
6 H 0.187      
7 H 0.092      
8 H 0.138      
9 H 0.144      
10 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.053 -0.468 0.000 0.471
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.163 -1.703 0.000
y -1.703 -23.653 0.000
z 0.000 0.000 -25.745
Traceless
 xyz
x -0.464 -1.703 0.000
y -1.703 1.801 0.000
z 0.000 0.000 -1.337
Polar
3z2-r2-2.673
x2-y2-1.510
xy-1.703
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.468 -2.200 0.000
y -2.200 11.592 0.000
z 0.000 0.000 6.008


<r2> (average value of r2) Å2
<r2> 98.830
(<r2>)1/2 9.941