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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: CISD/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 CISD/6-311G*
 hartrees
Energy at 0K-268.429209
Energy at 298.15K-268.434875
HF Energy-267.708021
Nuclear repulsion energy194.612476
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 CISD/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' 3349 3099 11.62      
2 A' 3292 3046 5.91      
3 A' 3278 3033 5.92      
4 A' 3257 3014 11.25      
5 A' 3252 3009 3.18      
6 A' 3052 2824 93.33      
7 A' 1913 1770 394.14      
8 A' 1822 1686 24.06      
9 A' 1750 1619 18.49      
10 A' 1528 1414 4.81      
11 A' 1488 1377 2.67      
12 A' 1392 1288 1.95      
13 A' 1384 1281 3.18      
14 A' 1328 1228 1.17      
15 A' 1247 1154 31.08      
16 A' 1166 1079 96.80      
17 A' 1006 931 3.77      
18 A' 628 581 16.26      
19 A' 448 414 0.75      
20 A' 402 372 5.34      
21 A' 157 145 6.68      
22 A" 1095 1013 31.50      
23 A" 1079 998 33.96      
24 A" 1041 964 13.48      
25 A" 1008 933 38.41      
26 A" 913 845 10.03      
27 A" 677 626 3.57      
28 A" 287 265 9.89      
29 A" 201 186 1.65      
30 A" 95 88 3.51      

Unscaled Zero Point Vibrational Energy (zpe) 21767.3 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 20141.3 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 CISD/6-311G*
ABC
0.96763 0.04506 0.04305

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.123 -1.578 0.000
O2 -1.109 -2.774 0.000
C3 0.086 -0.737 0.000
C4 0.000 0.594 0.000
C5 1.146 1.498 0.000
C6 1.027 2.822 0.000
H7 -2.078 -1.026 0.000
H8 1.035 -1.254 0.000
H9 -0.980 1.057 0.000
H10 2.127 1.044 0.000
H11 0.061 3.306 0.000
H12 1.892 3.467 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.19661.47242.44513.82214.89731.10272.18222.63914.17565.02515.8766
O21.19662.36163.54624.83075.99021.99872.62803.83395.00486.19166.9246
C31.47242.36161.33392.47373.68162.18291.08112.08722.70894.04294.5751
C42.44513.54621.33391.45932.45352.63512.11841.08422.17412.71243.4394
C53.82214.83072.47371.45931.32944.09442.75462.17101.08172.10802.1050
C64.89735.99023.68162.45351.32944.94504.07642.67282.09131.08031.0784
H71.10271.99872.18292.63514.09444.94503.12132.35524.68704.83155.9954
H82.18222.62801.08112.11842.75464.07643.12133.06672.54424.66294.7977
H92.63913.83392.08721.08422.17102.67282.35523.06673.10742.47783.7487
H104.17565.00482.70892.17411.08172.09134.68702.54423.10743.06372.4342
H115.02516.19164.04292.71242.10801.08034.83154.66292.47783.06371.8379
H125.87666.92464.57513.43942.10501.07845.99544.79773.74872.43421.8379

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.140 C1 C3 H8 116.597
O2 C1 C3 124.137 O2 C1 H7 120.692
C3 C1 H7 115.171 C3 C4 C5 124.597
C3 C4 H9 118.981 C4 C3 H8 122.264
C4 C5 C6 123.166 C4 C5 H10 116.874
C5 C4 H9 116.422 C5 C6 H11 121.705
C5 C6 H12 121.568 C6 C5 H10 119.960
H11 C6 H12 116.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability