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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-267.726486
Energy at 298.15K-267.732117
HF Energy-267.726486
Nuclear repulsion energy193.247130
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 B3PW91/3-21G
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' 3257 3130 7.18      
2 A' 3207 3083 4.42      
3 A' 3178 3055 5.69      
4 A' 3165 3042 4.10      
5 A' 3140 3018 4.34      
6 A' 2886 2774 116.50      
7 A' 1719 1652 157.22      
8 A' 1699 1633 100.46      
9 A' 1661 1597 10.48      
10 A' 1497 1439 5.95      
11 A' 1442 1386 1.57      
12 A' 1366 1313 1.29      
13 A' 1348 1295 2.48      
14 A' 1300 1249 3.79      
15 A' 1209 1162 11.12      
16 A' 1113 1070 111.91      
17 A' 990 951 6.61      
18 A' 609 586 14.14      
19 A' 440 423 0.59      
20 A' 390 375 4.60      
21 A' 152 146 4.36      
22 A" 1069 1028 38.57      
23 A" 1051 1010 24.65      
24 A" 1008 969 41.83      
25 A" 977 939 27.06      
26 A" 908 872 13.33      
27 A" 662 636 3.86      
28 A" 290 279 8.03      
29 A" 221 213 0.72      
30 A" 104 100 1.49      

Unscaled Zero Point Vibrational Energy (zpe) 21028.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 20212.4 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 B3PW91/3-21G
ABC
0.96020 0.04457 0.04259

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.085 -1.588 0.000
O2 -1.085 -2.823 0.000
C3 0.111 -0.744 0.000
C4 0.000 0.599 0.000
C5 1.118 1.522 0.000
C6 0.972 2.855 0.000
H7 -2.027 -0.999 0.000
H8 1.076 -1.242 0.000
H9 -0.998 1.042 0.000
H10 2.115 1.083 0.000
H11 -0.012 3.317 0.000
H12 1.827 3.524 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.23531.46382.44083.81094.89591.11142.18872.63114.16815.02115.8826
O21.23532.39903.58984.87186.03952.05322.67833.86595.05006.23356.9830
C31.46382.39901.34722.47943.70052.15351.08632.10222.71174.06314.5994
C42.44083.58981.34721.45012.45692.58082.13251.09192.16962.71863.4486
C53.81094.87182.47941.45011.34134.03072.76412.17011.08842.12182.1236
C64.89596.03953.70052.45691.34134.88334.09852.67762.10801.08731.0851
H71.11142.05322.15352.58084.03074.88333.11312.28534.63574.76325.9417
H82.18872.67831.08632.13252.76414.09853.11313.08542.54684.68754.8244
H92.63113.86592.10221.09192.17012.67762.28533.08543.11302.48003.7602
H104.16815.05002.71172.16961.08842.10804.63572.54683.11303.08422.4570
H115.02116.23354.06312.71862.12181.08734.76324.68752.48003.08421.8503
H125.88266.98304.59943.44862.12361.08515.94174.82443.76022.45701.8503

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.473 C1 C3 H8 117.490
O2 C1 C3 125.239 O2 C1 H7 121.985
C3 C1 H7 112.776 C3 C4 C5 124.797
C3 C4 H9 118.678 C4 C3 H8 122.037
C4 C5 C6 123.277 C4 C5 H10 116.727
C5 C4 H9 116.525 C5 C6 H11 121.416
C5 C6 H12 121.780 C6 C5 H10 119.996
H11 C6 H12 116.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.233      
2 O -0.443      
3 C -0.291      
4 C -0.193      
5 C -0.219      
6 C -0.401      
7 H 0.170      
8 H 0.238      
9 H 0.228      
10 H 0.230      
11 H 0.221      
12 H 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.001 3.774 0.000 3.905
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.295 -3.088 0.000
y -3.088 -41.386 0.000
z 0.000 0.000 -38.262
Traceless
 xyz
x 7.529 -3.088 0.000
y -3.088 -6.108 0.000
z 0.000 0.000 -1.422
Polar
3z2-r2-2.843
x2-y29.091
xy-3.088
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.484 2.666 0.000
y 2.666 16.256 0.000
z 0.000 0.000 2.310


<r2> (average value of r2) Å2
<r2> 242.493
(<r2>)1/2 15.572