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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-268.535033
Energy at 298.15K-268.540524
HF Energy-267.660328
Nuclear repulsion energy193.470848
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 CCD/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' 3328 3121 12.27      
2 A' 3265 3061 4.77      
3 A' 3244 3042 6.31      
4 A' 3231 3029 9.09      
5 A' 3215 3015 7.37      
6 A' 3014 2826 88.24      
7 A' 1856 1740 205.67      
8 A' 1780 1669 3.80      
9 A' 1712 1605 4.95      
10 A' 1506 1412 1.80      
11 A' 1465 1373 2.17      
12 A' 1362 1277 3.01      
13 A' 1358 1273 2.20      
14 A' 1300 1219 0.76      
15 A' 1226 1150 23.89      
16 A' 1152 1080 66.75      
17 A' 987 925 2.00      
18 A' 611 573 12.61      
19 A' 437 410 0.78      
20 A' 389 365 4.42      
21 A' 152 142 6.12      
22 A" 1055 989 39.80      
23 A" 1028 964 8.34      
24 A" 1000 938 4.42      
25 A" 950 890 32.54      
26 A" 856 803 4.26      
27 A" 646 606 1.84      
28 A" 270 253 6.87      
29 A" 189 177 1.84      
30 A" 90 84 3.62      

Unscaled Zero Point Vibrational Energy (zpe) 21335.3 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 20003.9 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 CCD/6-31G**
ABC
0.95832 0.04458 0.04260

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.128 -1.579 0.000
O2 -1.112 -2.796 0.000
C3 0.084 -0.741 0.000
C4 0.000 0.601 0.000
C5 1.150 1.503 0.000
C6 1.033 2.838 0.000
H7 -2.084 -1.024 0.000
H8 1.037 -1.257 0.000
H9 -0.982 1.066 0.000
H10 2.132 1.044 0.000
H11 0.064 3.321 0.000
H12 1.899 3.483 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21641.47452.45493.83234.91771.10502.18872.64964.18495.04295.8989
O21.21642.37813.57414.85706.02822.02032.64293.86405.02706.22836.9639
C31.47452.37811.34422.48323.70222.18671.08322.09832.71644.06124.5973
C42.45493.57411.34421.46102.46402.64262.12771.08702.17782.72043.4519
C53.83234.85702.48321.46101.34054.10352.76202.17621.08442.11752.1179
C64.91776.02823.70222.46401.34054.96294.09512.68342.10391.08251.0804
H71.10502.02032.18672.64264.10354.96293.12902.36284.69604.84666.0152
H82.18872.64291.08322.12772.76204.09513.12903.07812.54884.67994.8183
H92.64963.86402.09831.08702.17622.68342.36283.07813.11482.48533.7613
H104.18495.02702.71642.17781.08442.10394.69602.54883.11483.07572.4503
H115.04296.22834.06122.72042.11751.08254.84664.67992.48533.07571.8426
H125.89896.96394.59733.45192.11791.08046.01524.81833.76132.45031.8426

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.064 C1 C3 H8 116.854
O2 C1 C3 123.915 O2 C1 H7 120.910
C3 C1 H7 115.175 C3 C4 C5 124.503
C3 C4 H9 118.947 C4 C3 H8 122.082
C4 C5 C6 123.116 C4 C5 H10 116.884
C5 C4 H9 116.550 C5 C6 H11 121.467
C5 C6 H12 121.687 C6 C5 H10 120.001
H11 C6 H12 116.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability