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 CH3C(OH)=NH (Ethaninidic acid)

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-207.748259
Energy at 298.15K-207.754551
HF Energy-207.606460
Nuclear repulsion energy120.261203
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' 3488 3321 13.62      
2 A' 3404 3241 1.66      
3 A' 3181 3029 11.18      
4 A' 3095 2947 4.06      
5 A' 1724 1641 120.75      
6 A' 1563 1488 36.61      
7 A' 1473 1403 35.02      
8 A' 1442 1372 24.59      
9 A' 1247 1187 97.22      
10 A' 1096 1043 116.48      
11 A' 1012 963 137.12      
12 A' 841 801 0.82      
13 A' 538 512 40.95      
14 A' 404 384 3.09      
15 A" 3158 3006 5.65      
16 A" 1561 1486 8.27      
17 A" 1126 1072 12.09      
18 A" 862 820 34.75      
19 A" 655 624 166.66      
20 A" 522 496 19.49      
21 A" 101 96 1.59      

Unscaled Zero Point Vibrational Energy (zpe) 16244.3 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 15464.6 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
0.35273 0.30491 0.16868

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 0.000 0.139 0.000
C2 1.056 -0.941 0.000
N3 0.101 1.410 0.000
O4 -1.264 -0.436 0.000
H5 2.056 -0.507 0.000
H6 0.929 -1.572 0.883
H7 0.929 -1.572 -0.883
H8 1.067 1.761 0.000
H9 -1.913 0.319 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51061.27511.38872.15462.13852.13851.94161.9219
C21.51062.53792.37381.09021.09261.09262.70253.2255
N31.27512.53792.29642.73763.21913.21911.02782.2913
O41.38872.37382.29643.32012.62312.62313.20360.9962
H52.15461.09022.73763.32011.78421.78422.47384.0539
H62.13851.09263.21912.62311.78421.76573.45133.5268
H72.13851.09263.21912.62311.78421.76573.45133.5268
H81.94162.70251.02783.20362.47383.45133.45133.3113
H91.92193.22552.29130.99624.05393.52683.52683.3113

picture of Ethaninidic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.842 C1 C2 H6 109.418
C1 C2 H7 109.418 C1 N3 H8 114.510
C1 O4 H9 106.215 C2 C1 N3 131.115
C2 C1 O4 109.848 N3 C1 O4 119.037
H5 C2 H6 109.649 H5 C2 H7 109.649
H6 C2 H7 107.809
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability