return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-192.825556
Energy at 298.15K-192.831997
HF Energy-192.023380
Nuclear repulsion energy119.236397
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 MP2=FULL/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' 3188 3026 13.68      
2 A' 3111 2954 14.63      
3 A' 3082 2926 19.31      
4 A' 2969 2818 121.03      
5 A' 1788 1697 101.77      
6 A' 1528 1451 7.37      
7 A' 1476 1401 12.57      
8 A' 1446 1373 12.83      
9 A' 1427 1355 2.78      
10 A' 1386 1316 10.29      
11 A' 1137 1079 12.02      
12 A' 1022 971 0.82      
13 A' 888 843 21.33      
14 A' 681 646 5.75      
15 A' 261 248 8.11      
16 A" 3186 3025 13.87      
17 A" 3108 2950 5.71      
18 A" 1523 1446 7.45      
19 A" 1300 1235 0.35      
20 A" 1164 1105 0.67      
21 A" 923 876 1.11      
22 A" 682 648 3.20      
23 A" 255 243 0.35      
24 A" 153 145 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 18841.5 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 17888.1 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 MP2=FULL/cc-pVTZ
ABC
0.56042 0.20055 0.15603

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.437 0.445 0.000
C2 0.000 0.913 0.000
C3 -0.991 -0.206 0.000
O4 -0.697 -1.380 0.000
H5 2.118 1.288 0.000
H6 1.640 -0.165 0.873
H7 1.640 -0.165 -0.873
H8 -0.223 1.536 0.866
H9 -0.223 1.536 -0.866
H10 -2.047 0.102 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.51142.51412.80831.08401.08381.08382.16702.16703.5011
C21.51141.49522.39712.15092.14762.14761.08981.08982.2020
C32.51411.49521.21043.44982.77232.77232.09212.09211.1002
O42.80832.39711.21043.87902.77512.77513.07933.07932.0052
H51.08402.15093.44983.87901.76121.76122.50802.50804.3308
H61.08382.14762.77232.77511.76121.74612.52223.06363.7983
H71.08382.14762.77232.77511.76121.74613.06362.52223.7983
H82.16701.08982.09213.07932.50802.52223.06361.73172.4769
H92.16701.08982.09213.07932.50803.06362.52221.73172.4769
H103.50112.20201.10022.00524.33083.79833.79832.47692.4769

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.476 C1 C2 H8 111.808
C1 C2 H9 111.808 C2 C1 H5 110.864
C2 C1 H6 110.608 C2 C1 H7 110.608
C2 C3 O4 124.413 C2 C3 H10 115.240
C3 C2 H8 107.015 C3 C2 H9 107.015
O4 C3 H10 120.347 H5 C1 H6 108.670
H5 C1 H7 108.670 H6 C1 H7 107.320
H8 C2 H9 105.218
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability