return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: mPW1PW91/aug-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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-269.282786
Energy at 298.15K-269.288371
HF Energy-269.282786
Nuclear repulsion energy193.705550
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 mPW1PW91/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3274 3138 5.62      
2 A' 3208 3074 4.08      
3 A' 3193 3060 5.63      
4 A' 3172 3040 5.48      
5 A' 3165 3033 3.74      
6 A' 2916 2794 87.94      
7 A' 1785 1710 429.91      
8 A' 1719 1647 74.48      
9 A' 1667 1597 26.98      
10 A' 1448 1387 5.30      
11 A' 1398 1340 0.08      
12 A' 1319 1264 2.69      
13 A' 1313 1259 2.38      
14 A' 1256 1203 4.58      
15 A' 1197 1147 32.76      
16 A' 1142 1095 103.74      
17 A' 963 923 5.52      
18 A' 601 576 16.83      
19 A' 434 416 0.54      
20 A' 383 367 4.14      
21 A' 149 143 6.68      
22 A" 1049 1006 45.65      
23 A" 1027 984 5.85      
24 A" 997 955 21.37      
25 A" 973 932 20.67      
26 A" 891 854 9.00      
27 A" 658 630 2.82      
28 A" 288 276 7.47      
29 A" 217 208 1.63      
30 A" 98 94 3.17      

Unscaled Zero Point Vibrational Energy (zpe) 20947.9 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 20074.4 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 mPW1PW91/aug-cc-pVDZ
ABC
0.95741 0.04479 0.04279

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.098 -1.587 0.000
O2 -1.083 -2.801 0.000
C3 0.098 -0.746 0.000
C4 0.000 0.600 0.000
C5 1.125 1.512 0.000
C6 0.989 2.847 0.000
H7 -2.065 -1.031 0.000
H8 1.064 -1.254 0.000
H9 -0.998 1.049 0.000
H10 2.123 1.069 0.000
H11 0.005 3.316 0.000
H12 1.853 3.508 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21381.46242.44733.81384.90061.11622.18692.63824.17485.02625.8883
O21.21382.37073.56934.84546.01612.02442.64613.85105.02576.21366.9591
C31.46242.37071.34932.48013.70152.18221.09112.10332.71904.06344.6017
C42.44733.56931.34931.44812.45492.63142.13761.09462.17412.71663.4485
C53.81384.84542.48011.44811.34204.07952.76692.17291.09192.12402.1249
C64.90066.01613.70152.45491.34204.93604.10192.67962.10891.09031.0885
H71.11622.02442.18222.63144.07954.93603.13692.33764.68514.81495.9964
H82.18692.64611.09112.13762.76694.10193.13693.09142.55344.69194.8274
H92.63823.85102.10331.09462.17292.67962.33763.09143.12122.47943.7655
H104.17485.02572.71902.17411.09192.10894.68512.55343.12123.08842.4539
H115.02626.21364.06342.71662.12401.09034.81494.69192.47943.08841.8586
H125.88836.95914.60173.44852.12491.08855.99644.82743.76552.45391.8586

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.955 C1 C3 H8 117.092
O2 C1 C3 124.450 O2 C1 H7 120.590
C3 C1 H7 114.960 C3 C4 C5 124.860
C3 C4 H9 118.399 C4 C3 H8 121.953
C4 C5 C6 123.215 C4 C5 H10 117.036
C5 C4 H9 116.741 C5 C6 H11 121.330
C5 C6 H12 121.579 C6 C5 H10 119.749
H11 C6 H12 117.092
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.488      
2 O -0.589      
3 C 0.637      
4 C 1.275      
5 C 1.076      
6 C 0.265      
7 H -0.299      
8 H -0.626      
9 H -0.721      
10 H -0.636      
11 H -0.455      
12 H -0.416      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.040 4.177 0.000 4.305
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.818 -3.283 0.000
y -3.283 -43.567 0.000
z 0.000 0.000 -38.353
Traceless
 xyz
x 8.142 -3.283 0.000
y -3.283 -7.981 0.000
z 0.000 0.000 -0.161
Polar
3z2-r2-0.322
x2-y210.749
xy-3.283
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.607 3.149 0.000
y 3.149 18.876 0.000
z 0.000 0.000 6.254


<r2> (average value of r2) Å2
<r2> 242.269
(<r2>)1/2 15.565