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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: B1B95/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/CEP-31G*
 hartrees
Energy at 0K-36.468616
Energy at 298.15K-36.474925
Nuclear repulsion energy66.213392
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 B1B95/CEP-31G*
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' 3172 3036 30.45      
2 A' 3089 2957 19.73      
3 A' 3065 2934 30.92      
4 A' 2930 2804 152.11      
5 A' 1840 1761 175.10      
6 A' 1494 1430 11.30      
7 A' 1450 1388 13.48      
8 A' 1415 1354 17.30      
9 A' 1398 1338 7.39      
10 A' 1358 1300 7.82      
11 A' 1114 1066 11.51      
12 A' 995 952 1.29      
13 A' 868 831 20.28      
14 A' 662 634 5.04      
15 A' 250 239 8.45      
16 A" 3178 3042 33.78      
17 A" 3105 2972 14.89      
18 A" 1491 1428 8.33      
19 A" 1261 1207 0.37      
20 A" 1118 1070 1.10      
21 A" 885 848 2.01      
22 A" 646 618 8.01      
23 A" 246 236 0.20      
24 A" 152 145 3.33      

Unscaled Zero Point Vibrational Energy (zpe) 18590.9 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 17795.2 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 B1B95/CEP-31G*
ABC
0.54641 0.19352 0.15094

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.460 0.458 0.000
C2 0.000 0.929 0.000
C3 -1.004 -0.217 0.000
O4 -0.711 -1.403 0.000
H5 2.150 1.317 0.000
H6 1.670 -0.160 0.886
H7 1.670 -0.160 -0.886
H8 -0.231 1.559 0.878
H9 -0.231 1.559 -0.878
H10 -2.081 0.095 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.53442.55532.85921.10131.10051.10052.20132.20133.5596
C21.53441.52372.43742.18442.18192.18191.10571.10572.2415
C32.55531.52371.22133.50712.81782.81782.12712.12711.1211
O42.85922.43741.22133.94672.82782.82783.12633.12632.0301
H51.10132.18443.50713.94671.78791.78792.54932.54934.4032
H61.10052.18192.81782.82781.78791.77182.56353.11203.8626
H71.10052.18192.81782.82781.78791.77183.11202.56353.8626
H82.20131.10572.12713.12632.54932.56353.11201.75702.5170
H92.20131.10572.12713.12632.54933.11202.56351.75702.5170
H103.55962.24151.12112.03014.40323.86263.86262.51702.5170

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.355 C1 C2 H8 111.961
C1 C2 H9 111.961 C2 C1 H5 110.880
C2 C1 H6 110.724 C2 C1 H7 110.724
C2 C3 O4 124.866 C2 C3 H10 115.037
C3 C2 H8 106.915 C3 C2 H9 106.915
O4 C3 H10 120.096 H5 C1 H6 108.590
H5 C1 H7 108.590 H6 C1 H7 107.219
H8 C2 H9 105.222
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.494      
2 C -0.035      
3 C -0.301      
4 O -0.080      
5 H 0.165      
6 H 0.156      
7 H 0.156      
8 H 0.135      
9 H 0.135      
10 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.145 2.848 0.000 2.852
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.355 -1.868 0.000
y -1.868 -28.022 0.000
z 0.000 0.000 -23.591
Traceless
 xyz
x 2.451 -1.868 0.000
y -1.868 -4.549 0.000
z 0.000 0.000 2.098
Polar
3z2-r24.196
x2-y24.667
xy-1.868
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.434 0.096 0.000
y 0.096 5.612 0.000
z 0.000 0.000 3.873


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000