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All results from a given calculation for C3H2O (Propadienal)

using model chemistry: PBE1PBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 1A1
1 2 yes CS (bent) 1A'

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at PBE1PBE/cc-pVTZ
 hartrees
Energy at 0K-190.501216
Energy at 298.15K 
HF Energy-190.501216
Nuclear repulsion energy88.738379
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 PBE1PBE/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3087 2966 28.04 213.29 0.12 0.21
2 A1 2349 2258 971.22 37.80 0.40 0.57
3 A1 1819 1748 30.24 0.53 0.73 0.84
4 A1 1476 1418 1.69 13.71 0.55 0.71
5 A1 939 902 5.41 42.59 0.23 0.38
6 B1 1026 986 24.40 0.93 0.75 0.86
7 B1 657 631 22.00 0.74 0.75 0.86
8 B1 221 212 0.48 3.29 0.75 0.86
9 B2 3156 3033 6.98 130.74 0.75 0.86
10 B2 1063 1021 1.85 0.13 0.75 0.86
11 B2 470 452 11.38 2.64 0.75 0.86
12 B2 118i 113i 16.21 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8072.1 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 7757.3 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 PBE1PBE/cc-pVTZ
ABC
9.80354 0.14021 0.13823

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.866
C2 0.000 0.000 -0.554
C3 0.000 0.000 0.718
O4 0.000 0.000 1.887
H5 0.000 0.924 -2.443
H6 0.000 -0.924 -2.443

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6
C11.31132.58403.75321.08941.0894
C21.31131.27272.44192.10262.1026
C32.58401.27271.16923.29383.2938
O43.75322.44191.16924.42824.4282
H51.08942.10263.29384.42821.8473
H61.08942.10263.29384.42821.8473

picture of Propadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 180.000 C2 C1 H5 122.020
C2 C1 H6 122.020 C2 C3 O4 180.000
H5 C1 H6 115.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.244      
2 C -0.171      
3 C 0.314      
4 O -0.190      
5 H 0.145      
6 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.684 2.684
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.635 0.000 0.000
y 0.000 -22.394 0.000
z 0.000 0.000 -21.490
Traceless
 xyz
x -0.693 0.000 0.000
y 0.000 -0.332 0.000
z 0.000 0.000 1.025
Polar
3z2-r22.050
x2-y2-0.241
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.880 0.000 0.000
y 0.000 3.467 0.000
z 0.000 0.000 10.658


<r2> (average value of r2) Å2
<r2> 81.821
(<r2>)1/2 9.046

Conformer 2 (CS (bent))

Jump to S1C1
Energy calculated at PBE1PBE/cc-pVTZ
 hartrees
Energy at 0K-190.501828
Energy at 298.15K 
HF Energy-190.501828
Nuclear repulsion energy88.941125
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 PBE1PBE/cc-pVTZ
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' 3169 3046 6.56 119.59 0.71 0.83
2 A' 3093 2973 27.51 177.79 0.12 0.22
3 A' 2278 2189 982.41 42.14 0.43 0.60
4 A' 1797 1727 10.86 2.20 0.39 0.56
5 A' 1479 1421 0.80 14.04 0.57 0.73
6 A' 1070 1028 15.33 3.77 0.10 0.18
7 A' 958 921 3.33 36.31 0.18 0.30
8 A' 507 488 13.55 4.75 0.69 0.82
9 A' 143 138 21.92 5.59 0.75 0.86
10 A" 1033 992 24.03 1.10 0.75 0.86
11 A" 701 673 16.73 1.20 0.75 0.86
12 A" 264 254 0.95 3.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8245.7 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 7924.1 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 PBE1PBE/cc-pVTZ
ABC
5.95604 0.14530 0.14184

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.899 -1.590 0.000
C2 0.000 -0.627 0.000
C3 -0.309 0.626 0.000
O4 -0.765 1.697 0.000
H5 1.971 -1.393 0.000
H6 0.609 -2.638 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6
C11.31752.52363.68401.08941.0878
C21.31751.29002.44642.11432.1016
C32.52361.29001.16423.04513.3905
O43.68402.44641.16424.12684.5476
H51.08942.11433.04514.12681.8452
H61.08782.10163.39054.54761.8452

picture of Propadienal state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 150.840 C2 C1 H5 122.622
C2 C1 H6 121.497 C2 C3 O4 170.833
H5 C1 H6 115.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.210      
2 C -0.154      
3 C 0.239      
4 O -0.162      
5 H 0.144      
6 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.683 -1.793 0.000 2.459
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.885 -0.922 0.000
y -0.922 -22.318 0.000
z 0.000 0.000 -22.725
Traceless
 xyz
x 0.636 -0.922 0.000
y -0.922 -0.013 0.000
z 0.000 0.000 -0.623
Polar
3z2-r2-1.246
x2-y20.433
xy-0.922
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.103 -2.551 0.000
y -2.551 9.049 0.000
z 0.000 0.000 2.912


<r2> (average value of r2) Å2
<r2> 80.100
(<r2>)1/2 8.950