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/6-311G*

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/6-311G*
 hartrees
Energy at 0K-269.130371
Energy at 298.15K-269.135902
HF Energy-268.813218
Nuclear repulsion energy193.676334
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/6-311G*
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' 3259 3259 11.87      
2 A' 3194 3194 8.36      
3 A' 3180 3180 7.33      
4 A' 3165 3165 9.76      
5 A' 3151 3151 7.03      
6 A' 2906 2906 119.32      
7 A' 1758 1758 309.07      
8 A' 1705 1705 43.59      
9 A' 1652 1652 17.32      
10 A' 1473 1473 4.67      
11 A' 1427 1427 0.28      
12 A' 1341 1341 1.16      
13 A' 1330 1330 2.66      
14 A' 1280 1280 2.22      
15 A' 1205 1205 27.53      
16 A' 1130 1130 107.53      
17 A' 976 976 4.55      
18 A' 607 607 14.96      
19 A' 433 433 0.71      
20 A' 387 387 4.42      
21 A' 151 151 5.71      
22 A" 1049 1049 50.86      
23 A" 1021 1021 8.73      
24 A" 985 985 8.89      
25 A" 941 941 37.06      
26 A" 871 871 8.46      
27 A" 651 651 3.04      
28 A" 283 283 7.93      
29 A" 209 209 1.22      
30 A" 96 96 2.41      

Unscaled Zero Point Vibrational Energy (zpe) 20907.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20907.9 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/6-311G*
ABC
0.96324 0.04467 0.04269

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.104 -1.590 0.000
O2 -1.087 -2.804 0.000
C3 0.094 -0.743 0.000
C4 0.000 0.601 0.000
C5 1.129 1.512 0.000
C6 0.998 2.847 0.000
H7 -2.067 -1.035 0.000
H8 1.053 -1.253 0.000
H9 -0.992 1.053 0.000
H10 2.121 1.069 0.000
H11 0.022 3.321 0.000
H12 1.860 3.503 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21391.46662.45343.82184.90951.11142.18292.64524.17935.03815.8920
O21.21392.37503.57444.85166.02322.02142.64313.85785.02886.22426.9610
C31.46662.37501.34792.48163.70252.18051.08612.09882.71894.06484.5985
C42.45343.57441.34791.45042.45752.63642.13251.08962.17182.71963.4462
C53.82184.85162.48161.45041.34124.08682.76642.16941.08682.12022.1204
C64.90956.02323.70252.45751.34124.94644.10052.67912.10301.08481.0827
H71.11142.02142.18052.63644.08684.94643.12752.34894.68664.83126.0010
H82.18292.64311.08612.13252.76644.10053.12753.08192.55574.68874.8236
H92.64523.85782.09881.08962.16942.67912.34893.08193.11252.48423.7591
H104.17935.02882.71892.17181.08682.10304.68662.55573.11253.07832.4477
H115.03816.22424.06482.71962.12021.08484.83124.68872.48423.07831.8466
H125.89206.96104.59853.44622.12041.08276.00104.82363.75912.44771.8466

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.256 C1 C3 H8 116.759
O2 C1 C3 124.483 O2 C1 H7 120.698
C3 C1 H7 114.818 C3 C4 C5 124.911
C3 C4 H9 118.483 C4 C3 H8 121.986
C4 C5 C6 123.318 C4 C5 H10 117.013
C5 C4 H9 116.606 C5 C6 H11 121.486
C5 C6 H12 121.674 C6 C5 H10 119.669
H11 C6 H12 116.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability