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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: CCSD/TZVP

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/TZVP
 hartrees
Energy at 0K-268.662355
Energy at 298.15K-268.667612
HF Energy-267.739934
Nuclear repulsion energy193.730445
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/TZVP
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' 3275 3126 10.28      
2 A' 3216 3070 5.18      
3 A' 3199 3053 6.09      
4 A' 3182 3037 8.11      
5 A' 3171 3026 5.58      
6 A' 2966 2831 82.97      
7 A' 1801 1719 293.97      
8 A' 1738 1659 8.72      
9 A' 1674 1598 12.01      
10 A' 1485 1417 2.59      
11 A' 1452 1386 0.92      
12 A' 1347 1285 1.65      
13 A' 1340 1279 2.35      
14 A' 1287 1228 0.61      
15 A' 1210 1155 28.45      
16 A' 1127 1076 80.36      
17 A' 973 929 2.14      
18 A' 610 582 12.06      
19 A' 433 414 0.87      
20 A' 390 372 4.33      
21 A' 152 145 6.14      
22 A" 1014 968 38.00      
23 A" 993 947 26.40      
24 A" 952 909 2.37      
25 A" 846 807 38.27      
26 A" 772 737 3.34      
27 A" 589 562 2.44      
28 A" 252 241 7.77      
29 A" 132 126 1.89      
30 A" 75 72 2.98      

Unscaled Zero Point Vibrational Energy (zpe) 20826.0 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 19876.4 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/TZVP
ABC
0.95762 0.04473 0.04274

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.121 -1.580 0.000
O2 -1.109 -2.791 0.000
C3 0.090 -0.740 0.000
C4 0.000 0.599 0.000
C5 1.146 1.503 0.000
C6 1.023 2.836 0.000
H7 -2.078 -1.024 0.000
H8 1.044 -1.255 0.000
H9 -0.985 1.061 0.000
H10 2.132 1.048 0.000
H11 0.049 3.312 0.000
H12 1.888 3.485 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21141.47402.45093.82744.90881.10652.18982.64514.18205.03055.8915
O21.21142.37593.56724.85076.01722.01562.64493.85485.02406.21266.9549
C31.47402.37591.34212.47953.69542.18641.08462.09772.71404.05254.5915
C42.45093.56721.34211.45982.45932.63702.12801.08832.17832.71373.4484
C53.82744.85072.47951.45981.33824.09692.76022.17671.08552.11582.1158
C64.90886.01723.69542.45931.33824.95114.09092.67942.10391.08401.0818
H71.10652.01562.18642.63704.09694.95113.13092.35474.69214.83016.0051
H82.18982.64491.08462.12802.76024.09093.13093.07972.54694.67464.8144
H92.64513.85482.09771.08832.17672.67942.35473.07973.11682.47713.7587
H104.18205.02402.71402.17831.08552.10394.69212.54693.11683.07652.4490
H115.03056.21264.05252.71372.11581.08404.83014.67462.47713.07651.8471
H125.89156.95494.59153.44842.11581.08186.00514.81443.75872.44901.8471

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.918 C1 C3 H8 116.893
O2 C1 C3 124.152 O2 C1 H7 120.757
C3 C1 H7 115.092 C3 C4 C5 124.436
C3 C4 H9 118.970 C4 C3 H8 122.189
C4 C5 C6 122.967 C4 C5 H10 116.933
C5 C4 H9 116.594 C5 C6 H11 121.384
C5 C6 H12 121.565 C6 C5 H10 120.100
H11 C6 H12 117.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability