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=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-265.451862
Energy at 298.15K-265.456969
HF Energy-265.323265
Nuclear repulsion energy189.780020
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=FULL/STO-3G
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' 3590 3590 0.16      
2 A' 3490 3490 0.77      
3 A' 3486 3486 9.46      
4 A' 3465 3465 8.59      
5 A' 3433 3433 37.22      
6 A' 3228 3228 45.67      
7 A' 1814 1814 12.72      
8 A' 1782 1782 55.81      
9 A' 1751 1751 3.06      
10 A' 1575 1575 0.60      
11 A' 1482 1482 5.66      
12 A' 1415 1415 4.10      
13 A' 1408 1408 0.81      
14 A' 1344 1344 2.85      
15 A' 1250 1250 6.77      
16 A' 1132 1132 71.49      
17 A' 1016 1016 0.77      
18 A' 597 597 5.03      
19 A' 437 437 0.36      
20 A' 382 382 1.98      
21 A' 150 150 1.96      
22 A" 1134 1134 17.17      
23 A" 1086 1086 2.72      
24 A" 992 992 15.08      
25 A" 979 979 0.94      
26 A" 884 884 2.52      
27 A" 677 677 0.65      
28 A" 270 270 2.54      
29 A" 196 196 0.71      
30 A" 91 91 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 22265.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 22265.2 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=FULL/STO-3G
ABC
0.93710 0.04278 0.04091

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.164 -1.604 0.000
O2 -1.154 -2.864 0.000
C3 0.077 -0.732 0.000
C4 0.000 0.621 0.000
C5 1.179 1.528 0.000
C6 1.082 2.873 0.000
H7 -2.119 -1.010 0.000
H8 1.050 -1.243 0.000
H9 -0.990 1.102 0.000
H10 2.166 1.046 0.000
H11 0.110 3.379 0.000
H12 1.970 3.515 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.26041.51662.51103.91125.00821.12452.24372.71164.25515.14256.0016
O21.26042.46193.67144.97346.15702.09032.73653.96985.12896.36937.1026
C31.51662.46191.35562.51453.74212.21371.09902.12252.74274.11094.6495
C42.51103.67141.35561.48732.49792.67412.13951.10112.20702.75953.5004
C53.91124.97342.51451.48731.34764.16132.77402.21051.09912.13682.1382
C65.00826.15703.74212.49791.34765.03204.11532.72572.12431.09641.0958
H71.12452.09032.21372.67414.16135.03203.17802.39484.75234.92196.0985
H82.24372.73651.09902.13952.77404.11533.17803.10872.54554.71604.8453
H92.71163.96982.12251.10112.21052.72572.39483.10873.15682.52813.8190
H104.25515.12892.74272.20701.09912.12434.75232.54553.15683.11002.4769
H115.14256.36934.11092.75952.13681.09644.92194.71602.52813.11001.8656
H126.00167.10264.64953.50042.13821.09586.09854.84533.81902.47691.8656

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.808 C1 C3 H8 117.247
O2 C1 C3 124.618 O2 C1 H7 122.329
C3 C1 H7 113.053 C3 C4 C5 124.316
C3 C4 H9 119.173 C4 C3 H8 120.945
C4 C5 C6 123.483 C4 C5 H10 116.351
C5 C4 H9 116.511 C5 C6 H11 121.589
C5 C6 H12 121.768 C6 C5 H10 120.167
H11 C6 H12 116.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability