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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: HF/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 HF/CEP-31G*
 hartrees
Energy at 0K-35.644076
Energy at 298.15K-35.650551
HF Energy-35.644076
Nuclear repulsion energy66.636842
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 HF/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' 3300 2963 57.37 62.87 0.74 0.85
2 A' 3234 2904 19.74 236.49 0.01 0.02
3 A' 3219 2891 93.93 60.69 0.14 0.25
4 A' 3167 2844 122.98 102.82 0.52 0.69
5 A' 2000 1796 243.35 11.01 0.39 0.56
6 A' 1625 1459 7.19 6.69 0.74 0.85
7 A' 1596 1433 6.46 13.29 0.67 0.81
8 A' 1558 1399 5.54 5.86 0.46 0.63
9 A' 1522 1367 17.30 6.62 0.61 0.76
10 A' 1501 1348 0.81 1.50 0.09 0.17
11 A' 1198 1076 15.57 6.52 0.50 0.66
12 A' 1070 961 1.82 5.87 0.71 0.83
13 A' 912 819 12.92 14.32 0.18 0.31
14 A' 707 635 14.09 2.23 0.75 0.86
15 A' 267 240 10.44 0.67 0.54 0.70
16 A" 3315 2977 65.89 34.62 0.75 0.86
17 A" 3251 2919 30.78 92.96 0.75 0.86
18 A" 1620 1455 4.78 15.20 0.75 0.86
19 A" 1392 1250 0.80 10.72 0.75 0.86
20 A" 1250 1123 0.09 1.20 0.75 0.86
21 A" 973 873 1.95 1.69 0.75 0.86
22 A" 720 647 1.86 2.03 0.75 0.86
23 A" 248 223 0.76 0.51 0.75 0.86
24 A" 140 126 6.47 0.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19892.0 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 17863.0 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 HF/CEP-31G*
ABC
0.55838 0.19332 0.15160

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.466 0.459 0.000
C2 0.000 0.920 0.000
C3 -1.004 -0.224 0.000
O4 -0.720 -1.391 0.000
H5 2.132 1.323 0.000
H6 1.682 -0.146 0.880
H7 1.682 -0.146 -0.880
H8 -0.223 1.540 0.873
H9 -0.223 1.540 -0.873
H10 -2.062 0.085 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.53642.56232.86311.09121.08971.08972.18702.18703.5479
C21.53641.52202.42012.17022.17712.17711.09381.09382.2252
C32.56231.52201.20073.49712.82732.82732.11772.11771.1027
O42.86312.42011.20073.93682.84432.84433.09833.09831.9949
H51.09122.17023.49713.93681.77081.77082.52152.52154.3739
H61.08972.17712.82732.84431.77081.76002.54433.08963.8532
H71.08972.17712.82732.84431.77081.76003.08962.54433.8532
H82.18701.09382.11773.09832.52152.54433.08961.74542.5028
H92.18701.09382.11773.09832.52153.08962.54431.74542.5028
H103.54792.22521.10271.99494.37393.85323.85322.50282.5028

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.812 C1 C2 H8 111.393
C1 C2 H9 111.393 C2 C1 H5 110.211
C2 C1 H6 110.845 C2 C1 H7 110.845
C2 C3 O4 125.041 C2 C3 H10 115.009
C3 C2 H8 106.967 C3 C2 H9 106.967
O4 C3 H10 119.950 H5 C1 H6 108.572
H5 C1 H7 108.572 H6 C1 H7 107.711
H8 C2 H9 105.855
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.373      
2 C 0.002      
3 C -0.142      
4 O -0.197      
5 H 0.128      
6 H 0.121      
7 H 0.121      
8 H 0.099      
9 H 0.099      
10 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.266 3.107 0.000 3.118
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.642 -2.055 0.000
y -2.055 -29.203 0.000
z 0.000 0.000 -24.006
Traceless
 xyz
x 2.962 -2.055 0.000
y -2.055 -5.379 0.000
z 0.000 0.000 2.416
Polar
3z2-r24.833
x2-y25.561
xy-2.055
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.076 -0.023 0.000
y -0.023 5.333 0.000
z 0.000 0.000 3.797


<r2> (average value of r2) Å2
<r2> 71.940
(<r2>)1/2 8.482