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 CHOCHCHCH3 (2-Butenal)

using model chemistry: SVWN/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at SVWN/6-31+G**
 hartrees
Energy at 0K-229.987534
Energy at 298.15K-229.993281
HF Energy-229.987534
Nuclear repulsion energy153.341014
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 SVWN/6-31+G**
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' 3107 3061 3.03      
2 A' 3084 3038 11.11      
3 A' 3050 3004 5.81      
4 A' 2970 2926 3.95      
5 A' 2784 2742 106.60      
6 A' 1762 1735 330.85      
7 A' 1690 1665 77.84      
8 A' 1414 1393 29.10      
9 A' 1356 1336 3.81      
10 A' 1343 1323 20.60      
11 A' 1272 1253 4.69      
12 A' 1222 1204 9.34      
13 A' 1146 1129 49.84      
14 A' 1115 1099 4.96      
15 A' 914 901 35.20      
16 A' 533 525 7.89      
17 A' 454 447 3.01      
18 A' 203 200 6.28      
19 A" 3034 2989 1.68      
20 A" 1404 1383 15.71      
21 A" 1016 1001 0.87      
22 A" 987 973 4.36      
23 A" 960 945 41.99      
24 A" 771 759 0.03      
25 A" 302 298 8.90      
26 A" 201 198 0.89      
27 A" 127 125 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 19110.0 cm-1
Scaled (by 0.9851) Zero Point Vibrational Energy (zpe) 18825.3 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 SVWN/6-31+G**
ABC
1.10216 0.07337 0.06968

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.329 -0.606 0.000
C2 0.850 -0.778 0.000
C3 0.000 0.302 0.000
C4 -1.409 0.105 0.000
O5 -2.215 1.117 0.000
H6 -1.819 -0.882 0.000
H7 0.387 1.297 0.000
H8 0.441 -1.769 0.000
H9 2.579 0.441 0.000
H10 2.755 -1.081 0.876
H11 2.755 -1.081 -0.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11
C11.48932.50003.80484.85964.15772.71942.21801.07691.08321.0832
C21.48931.37402.42473.60282.67112.12601.07272.11602.11852.1185
C32.50001.37401.42242.35992.17061.06782.11782.58313.20453.2045
C43.80482.42471.42241.29391.06862.15562.63294.00224.41674.4167
O54.85963.60282.35991.29392.03742.60803.92194.84155.50405.5040
H64.15772.67112.17061.06862.03743.10102.42814.59344.66154.6615
H72.71942.12601.06782.15562.60803.10103.06712.35363.46833.4683
H82.21801.07272.11782.63293.92192.42813.06713.07592.56832.5683
H91.07692.11602.58314.00224.84154.59342.35363.07591.76481.7648
H101.08322.11853.20454.41675.50404.66153.46832.56831.76481.7512
H111.08322.11853.20454.41675.50404.66153.46832.56831.76481.7512

picture of 2-Butenal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 121.585 C1 C2 H8 119.031
C2 C1 H9 110.048 C2 C1 H10 109.870
C2 C1 H11 109.870 C2 C3 C4 120.225
C2 C3 H7 120.554 C3 C2 H8 119.384
C3 C4 O5 120.561 C3 C4 H6 120.576
C4 C3 H7 119.221 O5 C4 H6 118.862
H9 C1 H10 109.573 H9 C1 H11 109.573
H10 C1 H11 107.871
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.816      
2 C 0.008      
3 C 0.161      
4 C -0.072      
5 O -0.377      
6 H 0.127      
7 H 0.176      
8 H 0.168      
9 H 0.201      
10 H 0.212      
11 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.992 -2.082 0.000 4.502
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.210 3.492 0.000
y 3.492 -30.316 0.000
z 0.000 0.000 -31.599
Traceless
 xyz
x -4.253 3.492 0.000
y 3.492 3.089 0.000
z 0.000 0.000 1.164
Polar
3z2-r22.328
x2-y2-4.894
xy3.492
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.052 -2.160 0.000
y -2.160 8.292 0.000
z 0.000 0.000 5.094


<r2> (average value of r2) Å2
<r2> 160.169
(<r2>)1/2 12.656