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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-268.527068
Energy at 298.15K-268.532577
HF Energy-267.658855
Nuclear repulsion energy193.585110
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=FULL/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' 3348 3128 8.03      
2 A' 3270 3056 3.45      
3 A' 3253 3040 5.54      
4 A' 3241 3028 5.54      
5 A' 3216 3005 7.49      
6 A' 2990 2794 101.48      
7 A' 1769 1653 198.11      
8 A' 1738 1624 7.82      
9 A' 1676 1566 3.73      
10 A' 1498 1400 2.26      
11 A' 1450 1355 0.46      
12 A' 1353 1264 2.09      
13 A' 1347 1259 2.04      
14 A' 1293 1208 2.89      
15 A' 1223 1143 23.93      
16 A' 1161 1084 80.94      
17 A' 988 923 3.23      
18 A' 607 567 12.12      
19 A' 437 408 0.71      
20 A' 387 361 4.04      
21 A' 151 141 5.77      
22 A" 1060 990 44.38      
23 A" 1021 954 4.05      
24 A" 995 930 5.20      
25 A" 938 877 33.28      
26 A" 852 796 3.94      
27 A" 651 608 1.75      
28 A" 278 260 6.43      
29 A" 198 185 1.45      
30 A" 93 87 2.85      

Unscaled Zero Point Vibrational Energy (zpe) 21239.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 19846.3 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=FULL/6-31G**
ABC
0.95836 0.04473 0.04273

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.101 -1.582 0.000
O2 -1.087 -2.808 0.000
C3 0.099 -0.744 0.000
C4 0.000 0.602 0.000
C5 1.129 1.510 0.000
C6 0.991 2.847 0.000
H7 -2.057 -1.024 0.000
H8 1.057 -1.246 0.000
H9 -0.990 1.050 0.000
H10 2.119 1.071 0.000
H11 0.013 3.308 0.000
H12 1.847 3.504 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22701.46362.44573.81254.89781.10652.18472.63404.17235.01525.8785
O21.22702.38083.57944.85406.02482.03162.65273.85975.03256.21476.9609
C31.46362.38081.34942.47843.69972.17381.08262.09842.71584.05284.5936
C42.44573.57941.34941.44912.45372.62182.12961.08692.17062.70623.4399
C53.81254.85402.47841.44911.34344.07092.75782.16871.08352.11592.1191
C64.89786.02483.69972.45371.34344.92654.09382.67462.10411.08121.0791
H71.10652.03162.17382.62184.07094.92653.12242.33204.67214.80115.9783
H82.18472.65271.08262.12962.75784.09383.12243.07692.54904.67294.8159
H92.63403.85972.09841.08692.16872.67462.33203.07693.10972.47113.7512
H104.17235.03252.71582.17061.08352.10414.67212.54903.10973.07282.4488
H115.01526.21474.05282.70622.11591.08124.80114.67292.47113.07281.8439
H125.87856.96094.59363.43992.11911.07915.97834.81593.75122.44881.8439

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.728 C1 C3 H8 117.407
O2 C1 C3 124.230 O2 C1 H7 120.973
C3 C1 H7 114.797 C3 C4 C5 124.625
C3 C4 H9 118.536 C4 C3 H8 121.865
C4 C5 C6 122.923 C4 C5 H10 117.242
C5 C4 H9 116.839 C5 C6 H11 121.160
C5 C6 H12 121.644 C6 C5 H10 119.835
H11 C6 H12 117.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability