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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-268.509342
Energy at 298.15K-268.514843
HF Energy-267.670919
Nuclear repulsion energy192.278586
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/cc-pVDZ
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' 3300 3144 5.77      
2 A' 3223 3070 3.42      
3 A' 3210 3057 5.25      
4 A' 3190 3039 3.95      
5 A' 3175 3024 6.37      
6 A' 2932 2793 112.24      
7 A' 1764 1680 194.26      
8 A' 1710 1628 10.70      
9 A' 1646 1568 5.80      
10 A' 1453 1384 3.02      
11 A' 1412 1345 1.35      
12 A' 1313 1250 1.96      
13 A' 1308 1246 4.04      
14 A' 1250 1191 4.41      
15 A' 1187 1131 16.38      
16 A' 1139 1085 78.18      
17 A' 964 918 3.56      
18 A' 595 567 11.87      
19 A' 429 409 0.59      
20 A' 378 360 3.69      
21 A' 147 140 5.02      
22 A" 1049 999 43.15      
23 A" 1018 970 5.87      
24 A" 986 939 4.32      
25 A" 932 888 29.72      
26 A" 857 816 4.29      
27 A" 651 620 1.98      
28 A" 282 269 6.11      
29 A" 206 197 1.26      
30 A" 95 90 2.06      

Unscaled Zero Point Vibrational Energy (zpe) 20900.4 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 19907.6 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 MP2/cc-pVDZ
ABC
0.94083 0.04416 0.04218

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.110 -1.597 0.000
O2 -1.097 -2.820 0.000
C3 0.100 -0.751 0.000
C4 0.000 0.605 0.000
C5 1.138 1.518 0.000
C6 1.000 2.866 0.000
H7 -2.074 -1.021 0.000
H8 1.071 -1.260 0.000
H9 -1.003 1.058 0.000
H10 2.140 1.072 0.000
H11 0.008 3.331 0.000
H12 1.871 3.528 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22321.47632.46623.84174.93721.12222.20762.65684.20595.05385.9292
O21.22322.39043.59684.88046.06112.04652.67193.87895.06296.25017.0080
C31.47632.39041.36002.49563.72802.19001.09672.11852.73654.08364.6314
C42.46623.59681.36001.45892.47262.63532.15071.10052.19052.72633.4706
C53.84174.88042.49561.45891.35494.09412.77892.18981.09732.13602.1393
C64.93726.06113.72802.47261.35494.95624.12662.69922.12551.09581.0937
H71.12222.04652.19002.63534.09414.95623.15402.33844.70524.82506.0215
H82.20762.67191.09672.15072.77894.12663.15403.11032.56524.71264.8540
H92.65683.87892.11851.10052.18982.69922.33843.11033.14332.48863.7901
H104.20595.06292.73652.19051.09732.12554.70522.56523.14333.10632.4704
H115.05386.25014.08362.72632.13601.09584.82504.71262.48863.10631.8734
H125.92927.00804.63143.47062.13931.09376.02154.85403.79012.47041.8734

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.751 C1 C3 H8 117.419
O2 C1 C3 124.359 O2 C1 H7 121.458
C3 C1 H7 114.183 C3 C4 C5 124.553
C3 C4 H9 118.486 C4 C3 H8 121.830
C4 C5 C6 122.946 C4 C5 H10 117.252
C5 C4 H9 116.961 C5 C6 H11 120.928
C5 C6 H12 121.409 C6 C5 H10 119.803
H11 C6 H12 117.663
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability