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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-267.729774
Energy at 298.15K-267.735256
HF Energy-267.729774
Nuclear repulsion energy191.582652
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 BLYP/3-21G*
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' 3166 3145 11.14      
2 A' 3109 3089 8.95      
3 A' 3083 3063 5.99      
4 A' 3080 3060 7.79      
5 A' 3048 3028 5.15      
6 A' 2752 2734 137.85      
7 A' 1630 1619 40.91      
8 A' 1612 1602 163.87      
9 A' 1592 1582 12.47      
10 A' 1462 1452 4.10      
11 A' 1403 1394 4.19      
12 A' 1333 1324 1.05      
13 A' 1311 1303 2.98      
14 A' 1266 1258 1.76      
15 A' 1175 1167 10.88      
16 A' 1067 1060 107.28      
17 A' 962 956 4.22      
18 A' 591 588 12.44      
19 A' 425 422 0.69      
20 A' 379 377 3.43      
21 A' 148 147 3.55      
22 A" 1034 1027 38.69      
23 A" 1010 1004 14.06      
24 A" 964 958 14.95      
25 A" 926 920 32.43      
26 A" 869 863 9.29      
27 A" 640 636 2.89      
28 A" 284 282 5.41      
29 A" 221 220 0.53      
30 A" 102 102 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 20322.2 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 20190.1 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 BLYP/3-21G*
ABC
0.95204 0.04373 0.04181

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.094 -1.604 0.000
O2 -1.091 -2.854 0.000
C3 0.106 -0.748 0.000
C4 0.000 0.609 0.000
C5 1.124 1.535 0.000
C6 0.984 2.881 0.000
H7 -2.043 -1.006 0.000
H8 1.077 -1.250 0.000
H9 -1.004 1.055 0.000
H10 2.126 1.092 0.000
H11 -0.003 3.352 0.000
H12 1.847 3.550 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.24971.47372.46803.84344.94341.12222.19952.65994.19915.07455.9337
O21.24972.42173.62994.91586.09902.07892.69633.90915.09056.30027.0451
C31.47372.42171.36102.49993.73462.16481.09302.11702.73234.10184.6373
C42.46803.62991.36101.45672.47702.60412.14821.09822.18002.74353.4731
C53.84344.91582.49991.45671.35384.06062.78552.18141.09502.13812.1407
C64.94346.09903.73462.47701.35384.92734.13272.70002.12251.09351.0912
H71.12222.07892.16482.60414.06064.92733.13002.30784.66714.81195.9907
H82.19952.69631.09302.14822.78554.13273.13003.10502.56624.72714.8614
H92.65993.90912.11701.09822.18142.70002.30783.10503.12952.50603.7884
H104.19915.09052.73232.18001.09502.12254.66712.56623.12953.10442.4736
H115.07456.30024.10182.74352.13811.09354.81194.72712.50603.10441.8601
H125.93377.04514.63733.47312.14071.09125.99074.86143.78842.47361.8601

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.014 C1 C3 H8 117.180
O2 C1 C3 125.343 O2 C1 H7 122.348
C3 C1 H7 112.309 C3 C4 C5 125.016
C3 C4 H9 118.433 C4 C3 H8 121.806
C4 C5 C6 123.562 C4 C5 H10 116.653
C5 C4 H9 116.551 C5 C6 H11 121.412
C5 C6 H12 121.846 C6 C5 H10 119.785
H11 C6 H12 116.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.218      
2 O -0.403      
3 C -0.220      
4 C -0.147      
5 C -0.161      
6 C -0.331      
7 H 0.128      
8 H 0.185      
9 H 0.180      
10 H 0.181      
11 H 0.182      
12 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.074 3.585 0.000 3.743
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.990 -2.827 0.000
y -2.827 -41.092 0.000
z 0.000 0.000 -37.989
Traceless
 xyz
x 6.551 -2.827 0.000
y -2.827 -5.603 0.000
z 0.000 0.000 -0.948
Polar
3z2-r2-1.895
x2-y28.103
xy-2.827
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.962 3.066 0.000
y 3.066 16.884 0.000
z 0.000 0.000 2.338


<r2> (average value of r2) Å2
<r2> 246.596
(<r2>)1/2 15.703