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All results from a given calculation for CH2CHCHO (Acrolein)

using model chemistry: CCD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
1 2 no CS cis 1A'

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-191.569587
Energy at 298.15K 
HF Energy-190.836508
Nuclear repulsion energy103.281971
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 CCD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/aug-cc-pVTZ
ABC
1.59874 0.15596 0.14210

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.151 -0.746 0.000
C2 0.000 0.723 0.000
C3 1.212 1.279 0.000
O4 -1.213 -1.317 0.000
H5 0.797 -1.314 0.000
H6 -0.910 1.308 0.000
H7 1.351 2.350 0.000
H8 2.103 0.662 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.47682.44061.20601.10452.19023.44162.6577
C21.47681.33312.37322.18671.08192.11522.1037
C32.44061.33313.55202.62522.12171.08061.0834
O41.20602.37323.55202.01022.64244.47483.8619
H51.10452.18672.62522.01023.12833.70552.3686
H62.19021.08192.12172.64243.12832.48973.0811
H73.44162.11521.08064.47483.70552.48971.8475
H82.65772.10371.08343.86192.36863.08111.8475

picture of Acrolein state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.505 C1 C2 H6 116.891
C2 C1 O4 124.097 C2 C1 H5 115.041
C2 C3 H7 122.064 C2 C3 H8 120.695
C3 C2 H6 122.605 O4 C1 H5 120.862
H7 C3 H8 117.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-191.566058
Energy at 298.15K 
HF Energy-190.832483
Nuclear repulsion energy104.809238
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 CCD/aug-cc-pVTZ
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 3133 1.42      
2 A' 3205 3067 8.09      
3 A' 3176 3039 3.38      
4 A' 2988 2860 101.27      
5 A' 1832 1753 113.79      
6 A' 1714 1640 29.32      
7 A' 1458 1396 37.65      
8 A' 1449 1387 0.34      
9 A' 1327 1270 1.41      
10 A' 1080 1034 3.83      
11 A' 946 905 55.33      
12 A' 686 657 15.20      
13 A' 288 275 6.79      
14 A" 1043 998 0.86      
15 A" 1026 982 39.78      
16 A" 1009 965 8.92      
17 A" 564 540 10.36      
18 A" 115 110 6.61      

Unscaled Zero Point Vibrational Energy (zpe) 13589.6 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 13005.2 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 CCD/aug-cc-pVTZ
ABC
0.77036 0.20841 0.16403

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.889 -0.297 0.000
C2 0.000 0.896 0.000
C3 1.327 0.778 0.000
O4 -0.492 -1.436 0.000
H5 -1.971 -0.087 0.000
H6 -0.481 1.866 0.000
H7 1.971 1.646 0.000
H8 1.786 -0.202 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.48772.46281.20621.10222.20113.45732.6764
C21.48771.33232.38322.20261.08262.10882.0963
C32.46281.33232.86533.40962.11001.08071.0819
O41.20622.38322.86532.00153.30193.94502.5906
H51.10222.20263.40962.00152.45684.30623.7585
H62.20111.08262.11003.30192.45682.46173.0682
H73.45732.10881.08073.94504.30622.46171.8568
H82.67642.09631.08192.59063.75853.06821.8568

picture of Acrolein state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 121.608 C1 C2 H6 116.944
C2 C1 O4 124.095 C2 C1 H5 115.729
C2 C3 H7 121.500 C2 C3 H8 120.174
C3 C2 H6 121.448 O4 C1 H5 120.176
H7 C3 H8 118.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability