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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-267.680989
Energy at 298.15K-267.686825
HF Energy-267.680989
Nuclear repulsion energy195.382286
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 HF/6-31G(2df,p)
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' 3385 3065 12.05 94.73 0.59 0.75
2 A' 3337 3022 5.98 78.70 0.33 0.50
3 A' 3320 3006 6.34 52.40 0.27 0.43
4 A' 3300 2988 12.85 94.31 0.16 0.28
5 A' 3294 2983 2.34 13.79 0.64 0.78
6 A' 3089 2797 88.04 72.50 0.31 0.47
7 A' 1991 1803 505.11 213.52 0.34 0.51
8 A' 1875 1698 43.43 889.13 0.30 0.46
9 A' 1805 1635 29.34 6.88 0.57 0.73
10 A' 1573 1424 4.38 42.75 0.38 0.55
11 A' 1535 1390 2.91 2.04 0.44 0.61
12 A' 1430 1295 3.56 0.84 0.49 0.66
13 A' 1423 1289 2.77 82.13 0.31 0.47
14 A' 1359 1231 1.18 14.69 0.48 0.65
15 A' 1273 1153 48.68 136.34 0.43 0.60
16 A' 1181 1070 104.86 6.34 0.53 0.69
17 A' 1023 926 2.94 5.71 0.46 0.63
18 A' 642 581 19.42 0.14 0.51 0.67
19 A' 457 413 0.85 5.58 0.19 0.32
20 A' 413 374 5.04 2.88 0.42 0.59
21 A' 163 148 7.94 1.30 0.63 0.77
22 A" 1158 1049 13.33 3.90 0.75 0.86
23 A" 1142 1034 26.76 10.25 0.75 0.86
24 A" 1110 1005 25.47 4.79 0.75 0.86
25 A" 1087 985 21.30 2.22 0.75 0.86
26 A" 971 879 7.35 14.46 0.75 0.86
27 A" 713 646 2.27 3.41 0.75 0.86
28 A" 300 272 8.17 0.27 0.75 0.86
29 A" 214 194 1.88 0.06 0.75 0.86
30 A" 102 92 4.70 1.64 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22332.5 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 20222.0 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 HF/6-31G(2df,p)
ABC
0.97644 0.04533 0.04332

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.117 -1.579 0.000
O2 -1.103 -2.764 0.000
C3 0.089 -0.735 0.000
C4 0.000 0.587 0.000
C5 1.141 1.501 0.000
C6 1.018 2.815 0.000
H7 -2.067 -1.027 0.000
H8 1.035 -1.247 0.000
H9 -0.977 1.047 0.000
H10 2.120 1.050 0.000
H11 0.053 3.292 0.000
H12 1.876 3.462 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.18471.47252.43793.81954.88551.09852.17812.62964.17055.01015.8630
O21.18472.35333.52824.81915.96821.98632.62143.81264.99326.16546.9018
C31.47252.35331.32512.47083.66902.17571.07632.07572.70384.02694.5612
C42.43793.52821.32511.46182.44892.62312.10661.07942.16972.70523.4325
C53.81954.81912.47081.46181.31984.08482.75002.16641.07732.09612.0942
C64.88555.96823.66902.44891.31984.92754.06202.66572.08051.07661.0748
H71.09851.98632.17572.62314.08484.92753.11012.34304.67404.81185.9751
H82.17812.62141.07632.10662.75004.06203.11013.05122.54044.64444.7835
H92.62963.81262.07571.07942.16642.66572.34303.05123.09682.47053.7381
H104.17054.99322.70382.16971.07732.08054.67402.54043.09683.04942.4240
H115.01016.16544.02692.70522.09611.07664.81184.64442.47053.04941.8311
H125.86306.90184.56123.43252.09421.07485.97514.78353.73812.42401.8311

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.163 C1 C3 H8 116.556
O2 C1 C3 124.301 O2 C1 H7 120.867
C3 C1 H7 114.832 C3 C4 C5 124.824
C3 C4 H9 119.012 C4 C3 H8 122.281
C4 C5 C6 123.300 C4 C5 H10 116.605
C5 C4 H9 116.164 C5 C6 H11 121.686
C5 C6 H12 121.647 C6 C5 H10 120.095
H11 C6 H12 116.666
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.254      
2 O -0.388      
3 C -0.248      
4 C -0.091      
5 C -0.068      
6 C -0.361      
7 H 0.111      
8 H 0.162      
9 H 0.154      
10 H 0.153      
11 H 0.156      
12 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.792 3.975 0.000 4.053
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.349 -3.441 0.000
y -3.441 -43.228 0.000
z 0.000 0.000 -37.585
Traceless
 xyz
x 8.058 -3.441 0.000
y -3.441 -8.261 0.000
z 0.000 0.000 0.204
Polar
3z2-r20.407
x2-y210.879
xy-3.441
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.552 2.111 0.000
y 2.111 15.999 0.000
z 0.000 0.000 3.878


<r2> (average value of r2) Å2
<r2> 239.249
(<r2>)1/2 15.468