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 C5H6O (Pentadienal)

using model chemistry: B2PLYP/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 B2PLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-269.200226
Energy at 298.15K-269.205794
HF Energy-268.856946
Nuclear repulsion energy194.134931
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 B2PLYP/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' 3254 3127 5.43      
2 A' 3189 3065 3.80      
3 A' 3174 3050 4.68      
4 A' 3160 3037 5.21      
5 A' 3144 3021 4.30      
6 A' 2909 2795 85.57      
7 A' 1731 1663 365.37      
8 A' 1691 1625 59.98      
9 A' 1641 1577 20.75      
10 A' 1464 1407 4.14      
11 A' 1413 1358 0.31      
12 A' 1330 1278 1.62      
13 A' 1321 1270 1.71      
14 A' 1268 1219 2.11      
15 A' 1200 1153 37.50      
16 A' 1129 1085 105.59      
17 A' 969 931 3.92      
18 A' 603 579 14.73      
19 A' 432 416 0.74      
20 A' 385 370 3.81      
21 A' 150 144 6.51      
22 A" 1053 1012 47.96      
23 A" 1026 986 3.21      
24 A" 992 953 14.79      
25 A" 965 928 24.35      
26 A" 884 849 7.73      
27 A" 658 632 2.76      
28 A" 285 274 7.27      
29 A" 211 203 1.80      
30 A" 96 92 3.15      

Unscaled Zero Point Vibrational Energy (zpe) 20862.7 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 20049.1 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 B2PLYP/aug-cc-pVTZ
ABC
0.96513 0.04494 0.04294

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.094 -1.584 0.000
O2 -1.081 -2.800 0.000
C3 0.100 -0.743 0.000
C4 0.000 0.599 0.000
C5 1.122 1.511 0.000
C6 0.984 2.842 0.000
H7 -2.053 -1.030 0.000
H8 1.059 -1.245 0.000
H9 -0.991 1.043 0.000
H10 2.113 1.073 0.000
H11 0.006 3.303 0.000
H12 1.841 3.500 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21601.46102.44183.80694.88981.10732.18012.62914.16515.00935.8698
O21.21602.37203.56654.84136.00802.01922.64513.84405.02016.19896.9438
C31.46102.37201.34552.47483.69232.17251.08272.09312.71104.04714.5854
C42.44183.56651.34551.44632.44962.62102.12691.08632.16592.70433.4352
C53.80694.84132.47481.44631.33834.06722.75712.16491.08342.11182.1142
C64.88986.00803.69232.44961.33834.92134.08822.67182.09901.08181.0796
H71.10732.01922.17252.62104.06724.92133.11992.32944.66724.79745.9731
H82.18012.64511.08272.12692.75714.08823.11993.07282.54674.66914.8088
H92.62913.84402.09311.08632.16492.67182.32943.07283.10482.47013.7487
H104.16515.02012.71102.16591.08342.09904.66722.54673.10483.06882.4419
H115.00936.19894.04712.70432.11181.08184.79744.66912.47013.06881.8456
H125.86986.94384.58543.43522.11421.07965.97314.80883.74872.44191.8456

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.877 C1 C3 H8 117.194
O2 C1 C3 124.514 O2 C1 H7 120.644
C3 C1 H7 114.843 C3 C4 C5 124.824
C3 C4 H9 118.410 C4 C3 H8 121.930
C4 C5 C6 123.161 C4 C5 H10 117.052
C5 C4 H9 116.766 C5 C6 H11 121.159
C5 C6 H12 121.574 C6 C5 H10 119.787
H11 C6 H12 117.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.159      
2 O -0.664      
3 C -0.249      
4 C 0.143      
5 C -0.009      
6 C -1.040      
7 H 0.440      
8 H 0.383      
9 H 0.257      
10 H 0.265      
11 H 0.212      
12 H 0.420      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.991 4.058 0.000 4.177
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.421 -3.277 0.000
y -3.277 -44.097 0.000
z 0.000 0.000 -38.572
Traceless
 xyz
x 7.913 -3.277 0.000
y -3.277 -8.101 0.000
z 0.000 0.000 0.188
Polar
3z2-r20.375
x2-y210.676
xy-3.277
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.608 3.012 -0.000
y 3.012 18.484 0.000
z -0.000 0.000 6.334


<r2> (average value of r2) Å2
<r2> 241.708
(<r2>)1/2 15.547