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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-192.797410
Energy at 298.15K-192.803792
HF Energy-192.023530
Nuclear repulsion energy118.688425
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 QCISD/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' 3144 3004 20.06      
2 A' 3069 2933 15.13      
3 A' 3046 2911 26.48      
4 A' 2943 2812 115.70      
5 A' 1822 1741 127.62      
6 A' 1520 1453 6.81      
7 A' 1477 1412 9.98      
8 A' 1444 1380 12.88      
9 A' 1428 1364 2.09      
10 A' 1392 1330 6.93      
11 A' 1132 1081 12.57      
12 A' 1017 971 0.90      
13 A' 874 836 19.19      
14 A' 676 646 7.53      
15 A' 260 248 8.27      
16 A" 3147 3007 21.26      
17 A" 3076 2939 9.55      
18 A" 1514 1447 6.20      
19 A" 1300 1243 0.35      
20 A" 1165 1113 0.49      
21 A" 913 872 1.08      
22 A" 685 654 2.25      
23 A" 236 225 0.53      
24 A" 139 133 2.99      

Unscaled Zero Point Vibrational Energy (zpe) 18709.3 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 17876.8 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 QCISD/cc-pVTZ
ABC
0.55803 0.19758 0.15413

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.453 0.449 0.000
C2 0.000 0.911 0.000
C3 -1.004 -0.210 0.000
O4 -0.708 -1.384 0.000
H5 2.131 1.303 0.000
H6 1.672 -0.157 0.877
H7 1.672 -0.157 -0.877
H8 -0.217 1.545 0.867
H9 -0.217 1.545 -0.867
H10 -2.066 0.087 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52402.54332.83361.09071.08881.08882.17672.17673.5373
C21.52401.50462.40132.16702.16892.16891.09561.09562.2244
C32.54331.50461.21043.48102.81602.81602.10962.10961.1032
O42.83362.40131.21043.90922.81722.81723.09363.09362.0019
H51.09072.16703.48103.90921.76461.76462.51442.51444.3700
H61.08882.16892.81602.81721.76461.75412.54263.08303.8471
H71.08882.16892.81602.81721.76461.75413.08302.54263.8471
H82.17671.09562.10963.09362.51442.54263.08301.73322.5094
H92.17671.09562.10963.09362.51443.08302.54261.73322.5094
H103.53732.22441.10322.00194.37003.84713.84712.50942.5094

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.229 C1 C2 H8 111.340
C1 C2 H9 111.340 C2 C1 H5 110.855
C2 C1 H6 111.130 C2 C1 H7 111.130
C2 C3 O4 124.015 C2 C3 H10 116.229
C3 C2 H8 107.410 C3 C2 H9 107.410
O4 C3 H10 119.757 H5 C1 H6 108.127
H5 C1 H7 108.127 H6 C1 H7 107.326
H8 C2 H9 104.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability