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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-46.595481
Energy at 298.15K-46.601248
HF Energy-46.595481
Nuclear repulsion energy102.335007
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/CEP-121G*
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' 3403 3074 20.65 100.87 0.60 0.75
2 A' 3354 3030 10.18 84.40 0.35 0.52
3 A' 3339 3017 8.10 45.10 0.34 0.50
4 A' 3318 2998 14.32 91.83 0.28 0.44
5 A' 3307 2988 9.21 40.83 0.16 0.27
6 A' 3142 2839 94.19 83.00 0.32 0.49
7 A' 1949 1760 613.61 295.24 0.34 0.51
8 A' 1847 1669 30.13 1025.44 0.29 0.45
9 A' 1774 1602 32.00 7.51 0.61 0.76
10 A' 1569 1417 3.71 52.45 0.38 0.55
11 A' 1527 1379 2.66 1.52 0.53 0.69
12 A' 1422 1285 1.85 0.73 0.15 0.26
13 A' 1415 1279 3.23 115.15 0.28 0.44
14 A' 1357 1226 1.21 18.17 0.48 0.65
15 A' 1269 1147 54.51 165.88 0.42 0.59
16 A' 1175 1062 108.67 7.46 0.54 0.70
17 A' 1018 920 3.18 6.35 0.48 0.65
18 A' 635 573 20.05 0.10 0.49 0.66
19 A' 450 407 1.05 5.94 0.19 0.32
20 A' 409 370 6.02 3.94 0.47 0.64
21 A' 161 146 8.18 1.41 0.65 0.79
22 A" 1140 1030 42.90 2.32 0.75 0.86
23 A" 1119 1011 28.06 14.30 0.75 0.86
24 A" 1089 984 39.98 10.53 0.75 0.86
25 A" 1075 971 21.10 3.49 0.75 0.86
26 A" 946 854 13.16 22.31 0.75 0.86
27 A" 701 633 3.98 2.38 0.75 0.86
28 A" 294 266 11.05 0.06 0.75 0.86
29 A" 208 188 1.91 0.13 0.75 0.86
30 A" 99 89 5.02 1.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22255.2 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 20105.3 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 HF/CEP-121G*
ABC
0.96274 0.04469 0.04271

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.142 -1.579 0.000
O2 -1.131 -2.776 0.000
C3 0.081 -0.738 0.000
C4 0.000 0.595 0.000
C5 1.163 1.499 0.000
C6 1.053 2.826 0.000
H7 -2.092 -1.027 0.000
H8 1.026 -1.259 0.000
H9 -0.974 1.065 0.000
H10 2.139 1.038 0.000
H11 0.092 3.316 0.000
H12 1.922 3.461 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.19731.48462.45563.84574.92111.09812.19152.64934.19655.04855.8984
O21.19732.37133.55574.85196.01231.99542.63713.84445.02356.21416.9442
C31.48462.37131.33552.48513.69372.19221.07842.08912.71784.05454.5848
C42.45563.55571.33551.47342.46662.64712.11841.08122.18412.72313.4510
C53.84574.85192.48511.47341.33104.12052.76112.18061.07902.10962.1035
C64.92116.01233.69372.46661.33104.97334.08422.68452.09171.07901.0769
H71.09811.99542.19222.64714.12054.97333.12612.37244.70764.86196.0214
H82.19152.63711.07842.11842.76114.08423.12613.06552.55184.66934.8038
H92.64933.84442.08911.08122.18062.68452.37243.06553.11252.49093.7586
H104.19655.02352.71782.18411.07902.09174.70762.55183.11253.06292.4328
H115.04856.21414.05452.72312.10961.07904.86194.66932.49093.06291.8360
H125.89846.94424.58483.45102.10351.07696.02144.80383.75862.43281.8360

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.004 C1 C3 H8 116.645
O2 C1 C3 123.953 O2 C1 H7 120.693
C3 C1 H7 115.355 C3 C4 C5 124.363
C3 C4 H9 119.263 C4 C3 H8 122.350
C4 C5 C6 123.096 C4 C5 H10 116.828
C5 C4 H9 116.373 C5 C6 H11 121.822
C5 C6 H12 121.397 C6 C5 H10 120.075
H11 C6 H12 116.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.073      
2 O -0.362      
3 C -0.184      
4 C -0.167      
5 C -0.020      
6 C -0.542      
7 H 0.128      
8 H 0.240      
9 H 0.220      
10 H 0.219      
11 H 0.198      
12 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.765 4.201 0.000 4.270
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.456 -3.840 0.000
y -3.840 -44.346 0.000
z 0.000 0.000 -38.849
Traceless
 xyz
x 9.141 -3.840 0.000
y -3.840 -8.694 0.000
z 0.000 0.000 -0.448
Polar
3z2-r2-0.895
x2-y211.890
xy-3.840
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.587 2.103 0.000
y 2.103 16.973 0.000
z 0.000 0.000 4.367


<r2> (average value of r2) Å2
<r2> 190.057
(<r2>)1/2 13.786