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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-268.853244
Energy at 298.15K-268.845792
HF Energy-267.648992
Nuclear repulsion energy194.895277
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 CBS-Q
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' 3408 3408 14.50 102.55 0.60 0.75
2 A' 3360 3360 6.59 82.05 0.34 0.51
3 A' 3343 3343 6.76 57.97 0.27 0.43
4 A' 3323 3323 16.33 92.87 0.17 0.28
5 A' 3317 3317 3.12 13.95 0.64 0.78
6 A' 3127 3127 99.66 77.68 0.31 0.47
7 A' 1997 1997 551.76 233.07 0.36 0.53
8 A' 1887 1887 41.76 899.79 0.30 0.46
9 A' 1814 1814 27.42 6.97 0.55 0.71
10 A' 1580 1580 4.06 45.64 0.39 0.56
11 A' 1540 1540 3.63 2.79 0.47 0.64
12 A' 1435 1435 2.93 2.55 0.22 0.36
13 A' 1431 1431 3.56 77.83 0.32 0.49
14 A' 1366 1366 1.04 16.71 0.49 0.65
15 A' 1280 1280 51.08 142.26 0.43 0.60
16 A' 1191 1191 103.53 6.88 0.54 0.70
17 A' 1028 1028 3.63 5.57 0.44 0.61
18 A' 643 643 20.20 0.16 0.53 0.69
19 A' 457 457 0.85 5.50 0.21 0.35
20 A' 413 413 5.65 3.40 0.46 0.63
21 A' 163 163 8.04 1.13 0.63 0.77
22 A" 1151 1151 25.40 3.35 0.75 0.86
23 A" 1131 1131 24.20 15.75 0.75 0.86
24 A" 1099 1099 23.34 4.59 0.75 0.86
25 A" 1078 1078 27.11 3.30 0.75 0.86
26 A" 958 958 8.97 19.74 0.75 0.86
27 A" 706 706 2.54 5.00 0.75 0.86
28 A" 297 297 9.26 0.46 0.75 0.86
29 A" 211 211 1.91 0.03 0.75 0.86
30 A" 100 100 4.94 1.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22417.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 22417.0 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 CBS-Q
ABC
0.94803 0.04437 0.04239

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.125 -1.580 0.000
O2 -1.112 -2.767 0.000
C3 0.085 -0.737 0.000
C4 0.000 0.590 0.000
C5 1.149 1.500 0.000
C6 1.030 2.819 0.000
H7 -2.077 -1.030 0.000
H8 1.032 -1.254 0.000
H9 -0.977 1.055 0.000
H10 2.128 1.045 0.000
H11 0.066 3.304 0.000
H12 1.893 3.464 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.18691.47472.44483.82844.89931.09912.18172.63894.18005.02785.8787
O21.18692.35633.53664.82855.98311.98702.62413.82395.00256.18466.9182
C31.47472.35631.33022.47703.68022.18131.07872.08272.71094.04174.5743
C42.44483.53661.33021.46502.45572.63412.11291.08162.17562.71493.4417
C53.82844.82852.47701.46501.32504.09912.75582.17161.07952.10442.1011
C64.89935.98313.68022.45571.32504.94694.07302.67282.08641.07921.0774
H71.09911.98702.18132.63414.09914.94693.11672.35694.68854.83525.9968
H82.18172.62411.07872.11292.75584.07303.11673.05982.54634.65924.7960
H92.63893.82392.08271.08162.17162.67282.35693.05983.10452.47993.7477
H104.18005.00252.71092.17561.07952.08644.68852.54633.10453.05862.4308
H115.02786.18464.04172.71492.10441.07924.83524.65922.47993.05861.8341
H125.87876.91824.57433.44172.10111.07745.99684.79603.74772.43081.8341

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.208 C1 C3 H8 116.538
O2 C1 C3 124.213 O2 C1 H7 120.684
C3 C1 H7 115.103 C3 C4 C5 124.718
C3 C4 H9 119.072 C4 C3 H8 122.254
C4 C5 C6 123.246 C4 C5 H10 116.711
C5 C4 H9 116.211 C5 C6 H11 121.829
C5 C6 H12 121.645 C6 C5 H10 120.043
H11 C6 H12 116.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability