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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-191.983600
Energy at 298.15K-191.990103
HF Energy-191.983600
Nuclear repulsion energy118.703483
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 B1B95/3-21G
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' 3178 3040 14.63      
2 A' 3098 2964 12.19      
3 A' 3063 2930 16.85      
4 A' 2948 2821 127.06      
5 A' 1767 1691 77.02      
6 A' 1566 1498 9.76      
7 A' 1503 1438 23.16      
8 A' 1476 1412 16.72      
9 A' 1443 1380 4.68      
10 A' 1370 1311 14.84      
11 A' 1132 1083 20.54      
12 A' 1033 988 0.70      
13 A' 870 833 21.59      
14 A' 694 663 3.01      
15 A' 293 280 10.58      
16 A" 3173 3036 15.15      
17 A" 3095 2961 4.35      
18 A" 1571 1503 10.45      
19 A" 1319 1262 0.16      
20 A" 1175 1124 1.12      
21 A" 941 900 2.33      
22 A" 704 673 8.95      
23 A" 261 250 0.18      
24 A" 156 149 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 18913.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 18094.7 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 B1B95/3-21G
ABC
0.53655 0.20506 0.15696

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.428 0.404 0.000
C2 0.000 0.941 0.000
C3 -0.998 -0.188 0.000
O4 -0.684 -1.373 0.000
H5 2.156 1.216 0.000
H6 1.593 -0.222 0.879
H7 1.593 -0.222 -0.879
H8 -0.196 1.570 0.878
H9 -0.196 1.570 -0.878
H10 -2.055 0.133 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52622.49792.76071.09101.09151.09152.18432.18433.4941
C21.52621.50702.41342.17402.15942.15941.09771.09772.2084
C32.49791.50701.22633.45322.73682.73682.12232.12231.1044
O42.76072.41341.22633.84392.69932.69933.11003.11002.0365
H51.09102.17403.45323.84391.77701.77702.53612.53614.3488
H61.09152.15942.73682.69931.77701.75882.53223.08233.7695
H71.09152.15942.73682.69931.77701.75883.08232.53223.7695
H82.18431.09772.12233.11002.53612.53223.08231.75592.5084
H92.18431.09772.12233.11002.53613.08232.53221.75592.5084
H103.49412.20841.10442.03654.34883.76953.76952.50842.5084

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 110.873 C1 C2 H8 111.666
C1 C2 H9 111.666 C2 C1 H5 111.247
C2 C1 H6 110.053 C2 C1 H7 110.053
C2 C3 O4 123.674 C2 C3 H10 114.615
C3 C2 H8 108.102 C3 C2 H9 108.102
O4 C3 H10 121.711 H5 C1 H6 109.023
H5 C1 H7 109.023 H6 C1 H7 107.348
H8 C2 H9 106.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.597      
2 C -0.564      
3 C 0.260      
4 O -0.420      
5 H 0.208      
6 H 0.226      
7 H 0.226      
8 H 0.242      
9 H 0.242      
10 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.163 2.461 0.000 2.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.782 -1.554 0.000
y -1.554 -27.949 0.000
z 0.000 0.000 -24.097
Traceless
 xyz
x 2.241 -1.554 0.000
y -1.554 -4.010 0.000
z 0.000 0.000 1.769
Polar
3z2-r23.538
x2-y24.167
xy-1.554
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.987 -0.047 0.000
y -0.047 5.214 0.000
z 0.000 0.000 3.581


<r2> (average value of r2) Å2
<r2> 82.987
(<r2>)1/2 9.110