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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: QCISD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31+G**
 hartrees
Energy at 0K-268.563922
Energy at 298.15K-268.569323
HF Energy-267.669408
Nuclear repulsion energy192.956721
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 QCISD/6-31+G**
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' 3312 3131 11.11      
2 A' 3249 3072 4.63      
3 A' 3231 3055 6.36      
4 A' 3215 3039 8.72      
5 A' 3201 3026 6.74      
6 A' 3002 2838 80.48      
7 A' 1776 1679 371.38      
8 A' 1746 1651 1.98      
9 A' 1679 1587 7.55      
10 A' 1493 1412 2.26      
11 A' 1443 1364 0.18      
12 A' 1353 1279 1.40      
13 A' 1345 1272 2.19      
14 A' 1295 1224 0.40      
15 A' 1221 1154 34.52      
16 A' 1143 1081 80.91      
17 A' 981 927 2.69      
18 A' 605 572 12.50      
19 A' 434 410 0.97      
20 A' 387 366 4.53      
21 A' 152 143 6.81      
22 A" 1035 978 57.63      
23 A" 1012 956 11.25      
24 A" 980 927 3.19      
25 A" 933 882 38.43      
26 A" 840 794 7.37      
27 A" 632 598 3.02      
28 A" 262 247 9.40      
29 A" 167 158 1.97      
30 A" 83 78 3.52      

Unscaled Zero Point Vibrational Energy (zpe) 21102.9 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 19950.7 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 QCISD/6-31+G**
ABC
0.95326 0.04437 0.04240

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.124 -1.581 0.000
O2 -1.111 -2.807 0.000
C3 0.088 -0.744 0.000
C4 0.000 0.603 0.000
C5 1.149 1.508 0.000
C6 1.026 2.848 0.000
H7 -2.083 -1.031 0.000
H8 1.043 -1.260 0.000
H9 -0.985 1.066 0.000
H10 2.134 1.054 0.000
H11 0.054 3.327 0.000
H12 1.892 3.496 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22531.47342.45683.83524.92391.10532.19042.65084.19045.04775.9054
O21.22532.38573.58634.87046.04532.02412.65163.87445.04316.24326.9813
C31.47342.38571.35052.48933.71302.18991.08432.10442.72354.07154.6077
C42.45683.58631.35051.46212.46842.64712.13471.08812.18122.72433.4564
C53.83524.87042.48931.46211.34614.10932.76962.17881.08532.12332.1223
C64.92396.04533.71302.46841.34614.97104.10812.68712.10951.08361.0815
H71.10532.02412.18992.64714.10934.97103.13352.36664.70394.85336.0240
H82.19042.65161.08432.13472.76964.10813.13353.08512.55794.69214.8306
H92.65083.87442.10441.08812.17882.68712.36663.08513.11912.48833.7658
H104.19045.04312.72352.18121.08532.10954.70392.55793.11913.08182.4541
H115.04776.24324.07152.72432.12331.08364.85334.69212.48833.08181.8462
H125.90546.98134.60773.45642.12231.08156.02404.83063.76582.45411.8462

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.858 C1 C3 H8 117.010
O2 C1 C3 124.007 O2 C1 H7 120.478
C3 C1 H7 115.515 C3 C4 C5 124.465
C3 C4 H9 118.917 C4 C3 H8 122.132
C4 C5 C6 122.985 C4 C5 H10 117.029
C5 C4 H9 116.618 C5 C6 H11 121.450
C5 C6 H12 121.528 C6 C5 H10 119.986
H11 C6 H12 117.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability