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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-268.116881
Energy at 298.15K-268.122220
HF Energy-267.564173
Nuclear repulsion energy189.310148
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 MP2/SDD
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' 3257 3144 23.66      
2 A' 3176 3066 10.57      
3 A' 3157 3048 11.29      
4 A' 3139 3030 15.28      
5 A' 3121 3013 12.77      
6 A' 2974 2871 97.86      
7 A' 1670 1612 29.09      
8 A' 1624 1568 75.60      
9 A' 1558 1504 34.18      
10 A' 1472 1421 8.29      
11 A' 1408 1359 3.89      
12 A' 1339 1292 0.97      
13 A' 1321 1275 0.75      
14 A' 1285 1240 0.69      
15 A' 1204 1162 20.43      
16 A' 1113 1074 66.31      
17 A' 962 928 4.60      
18 A' 588 568 10.97      
19 A' 425 411 0.88      
20 A' 375 362 5.34      
21 A' 148 143 6.52      
22 A" 1008 973 92.19      
23 A" 968 935 0.00      
24 A" 953 920 2.79      
25 A" 868 838 53.57      
26 A" 811 783 2.59      
27 A" 617 595 2.19      
28 A" 267 258 11.65      
29 A" 193 187 1.57      
30 A" 93 90 4.10      

Unscaled Zero Point Vibrational Energy (zpe) 20546.8 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 19833.8 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 MP2/SDD
ABC
0.93106 0.04267 0.04080

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.161 -1.588 0.000
O2 -1.158 -2.863 0.000
C3 0.073 -0.753 0.000
C4 0.000 0.623 0.000
C5 1.179 1.519 0.000
C6 1.089 2.890 0.000
H7 -2.121 -1.025 0.000
H8 1.036 -1.277 0.000
H9 -0.991 1.103 0.000
H10 2.167 1.042 0.000
H11 0.119 3.399 0.000
H12 1.982 3.519 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.27461.48952.49723.88985.01101.11272.21862.69614.24235.14875.9969
O21.27462.44203.67284.96616.17542.07482.70653.96895.12906.39057.1125
C31.48952.44201.37812.52763.78202.21001.09632.13932.75914.15274.6798
C42.49723.67281.37811.48092.51462.68542.16401.10112.20772.77883.5096
C53.88984.96612.52761.48091.37324.16632.80032.20941.09792.15792.1552
C65.01106.17543.78202.51461.37325.06174.16722.74182.13941.09531.0929
H71.11272.07482.21002.68544.16635.06173.16642.40874.76034.95836.1219
H82.21862.70651.09632.16402.80034.16723.16643.12602.58094.76534.8890
H92.69613.96892.13931.10112.20942.74182.40873.12603.15912.55053.8311
H104.24235.12902.75912.20771.09792.13944.76032.58093.15913.12272.4841
H115.14876.39054.15272.77882.15791.09534.95834.76532.55053.12271.8668
H125.99697.11254.67983.50962.15521.09296.12194.88903.83112.48411.8668

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.060 C1 C3 H8 117.373
O2 C1 C3 123.940 O2 C1 H7 120.557
C3 C1 H7 115.503 C3 C4 C5 124.237
C3 C4 H9 118.858 C4 C3 H8 121.567
C4 C5 C6 123.491 C4 C5 H10 116.981
C5 C4 H9 116.905 C5 C6 H11 121.482
C5 C6 H12 121.417 C6 C5 H10 119.528
H11 C6 H12 117.101
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability