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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: CCSD(T)/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/6-31G**
 hartrees
Energy at 0K-268.579003
Energy at 298.15K-268.584417
HF Energy-267.658168
Nuclear repulsion energy192.812714
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 CCSD(T)/6-31G**
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' 3303 3133        
2 A' 3233 3066        
3 A' 3216 3050        
4 A' 3204 3039        
5 A' 3183 3019        
6 A' 2965 2812        
7 A' 1769 1678        
8 A' 1719 1630        
9 A' 1662 1576        
10 A' 1486 1410        
11 A' 1440 1366        
12 A' 1341 1272        
13 A' 1335 1266        
14 A' 1284 1218        
15 A' 1211 1149        
16 A' 1140 1082        
17 A' 975 925        
18 A' 600 569        
19 A' 431 409        
20 A' 381 362        
21 A' 147 140        
22 A" 1032 979        
23 A" 1001 950        
24 A" 974 923        
25 A" 915 868        
26 A" 830 787        
27 A" 632 599        
28 A" 267 254        
29 A" 191 181        
30 A" 89 85        

Unscaled Zero Point Vibrational Energy (zpe) 20978.0 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 19897.6 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 CCSD(T)/6-31G**
ABC
0.95246 0.04432 0.04235

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.125 -1.583 0.000
O2 -1.110 -2.809 0.000
C3 0.087 -0.746 0.000
C4 0.000 0.606 0.000
C5 1.147 1.507 0.000
C6 1.028 2.851 0.000
H7 -2.082 -1.023 0.000
H8 1.043 -1.261 0.000
H9 -0.986 1.069 0.000
H10 2.133 1.049 0.000
H11 0.056 3.332 0.000
H12 1.895 3.498 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22641.47262.46073.83494.92861.10842.19142.65534.18825.05435.9109
O21.22642.38513.59074.87036.05022.03302.65173.87995.04026.25056.9867
C31.47262.38511.35462.48973.71802.18641.08562.10842.72204.07794.6135
C42.46073.59071.35461.45872.46932.64342.13801.08952.17852.72663.4581
C53.83494.87032.48971.45871.34974.10212.76932.17781.08652.12662.1276
C64.92866.05023.71802.46931.34974.96784.11172.68912.11351.08441.0822
H71.10842.03302.18642.64344.10214.96783.13352.36184.69674.85146.0217
H82.19142.65171.08562.13802.76934.11173.13353.08922.55444.69734.8350
H92.65533.87992.10841.08952.17782.68912.36183.08923.11902.49123.7686
H104.18825.04022.72202.17851.08652.11354.69672.55443.11903.08602.4608
H115.05436.25054.07792.72662.12661.08444.85144.69732.49123.08601.8465
H125.91096.98674.61353.45812.12761.08226.02174.83503.76862.46081.8465

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.943 C1 C3 H8 117.073
O2 C1 C3 123.929 O2 C1 H7 121.007
C3 C1 H7 115.064 C3 C4 C5 124.456
C3 C4 H9 118.840 C4 C3 H8 121.984
C4 C5 C6 123.056 C4 C5 H10 116.976
C5 C4 H9 116.704 C5 C6 H11 121.402
C5 C6 H12 121.678 C6 C5 H10 119.968
H11 C6 H12 116.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability