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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-191.808971
Energy at 298.15K-191.815368
HF Energy-191.671341
Nuclear repulsion energy117.825674
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 B2PLYP=FULL/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' 3165 3013 17.41      
2 A' 3096 2947 13.35      
3 A' 3063 2916 16.51      
4 A' 2943 2802 135.51      
5 A' 1700 1619 56.65      
6 A' 1584 1508 7.23      
7 A' 1532 1459 20.12      
8 A' 1491 1419 10.01      
9 A' 1452 1382 5.13      
10 A' 1381 1314 11.07      
11 A' 1130 1076 19.82      
12 A' 1025 976 1.90      
13 A' 850 809 19.81      
14 A' 687 654 2.77      
15 A' 274 261 10.03      
16 A" 3165 3013 18.84      
17 A" 3091 2943 6.31      
18 A" 1586 1510 7.73      
19 A" 1336 1272 0.26      
20 A" 1188 1131 0.72      
21 A" 945 900 2.05      
22 A" 717 682 6.33      
23 A" 238 227 0.45      
24 A" 125 119 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 18882.0 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 17975.7 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 B2PLYP=FULL/3-21G
ABC
0.53337 0.19999 0.15374

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.444 0.418 0.000
C2 0.000 0.945 0.000
C3 -1.005 -0.193 0.000
O4 -0.696 -1.391 0.000
H5 2.159 1.242 0.000
H6 1.618 -0.203 0.881
H7 1.618 -0.203 -0.881
H8 -0.197 1.572 0.879
H9 -0.197 1.572 -0.879
H10 -2.060 0.134 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.53692.52402.80241.09201.09201.09202.19042.19043.5155
C21.53691.51792.43752.17992.17082.17081.09791.09792.2139
C32.52401.51791.23783.47502.76772.76772.13072.13071.1046
O42.80242.43751.23783.88502.74722.74723.13093.13092.0465
H51.09202.17993.47503.88501.77731.77732.53682.53684.3629
H61.09202.17082.76772.74721.77731.76262.53893.08963.7978
H71.09202.17082.76772.74721.77731.76263.08962.53893.7978
H82.19041.09792.13073.13092.53682.53893.08961.75852.5121
H92.19041.09792.13073.13092.53683.08962.53891.75852.5121
H103.51552.21391.10462.04654.36293.79783.79782.51212.5121

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 111.429 C1 C2 H8 111.381
C1 C2 H9 111.381 C2 C1 H5 110.907
C2 C1 H6 110.183 C2 C1 H7 110.183
C2 C3 O4 124.074 C2 C3 H10 114.250
C3 C2 H8 108.005 C3 C2 H9 108.005
O4 C3 H10 121.676 H5 C1 H6 108.937
H5 C1 H7 108.937 H6 C1 H7 107.618
H8 C2 H9 106.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability