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: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-208.958265
Energy at 298.15K-208.964483
HF Energy-208.958265
Nuclear repulsion energy120.688048
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3569 3548 27.49      
2 A' 3392 3372 0.57      
3 A' 3099 3081 8.87      
4 A' 2985 2967 7.04      
5 A' 1705 1696 192.58      
6 A' 1414 1406 38.90      
7 A' 1391 1383 40.18      
8 A' 1313 1305 0.53      
9 A' 1224 1217 92.08      
10 A' 1074 1068 161.59      
11 A' 961 956 23.95      
12 A' 857 852 3.07      
13 A' 526 523 39.73      
14 A' 403 401 1.77      
15 A" 3058 3040 4.77      
16 A" 1391 1383 8.68      
17 A" 1011 1006 7.25      
18 A" 808 803 12.89      
19 A" 630 627 115.02      
20 A" 506 503 11.85      
21 A" 109 108 1.29      

Unscaled Zero Point Vibrational Energy (zpe) 15712.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 15621.8 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 PBEPBE/cc-pVDZ
ABC
0.35854 0.30526 0.17020

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.131 0.000
C2 0.947 -1.042 0.000
N3 0.247 1.391 0.000
O4 -1.298 -0.288 0.000
H5 2.000 -0.709 0.000
H6 0.764 -1.677 0.890
H7 0.764 -1.677 -0.890
H8 1.267 1.551 0.000
H9 -1.816 0.550 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50701.28411.36402.16922.15502.15501.90321.8641
C21.50702.53142.36801.10461.10891.10892.61233.1887
N31.28412.53142.28142.73573.23613.23611.03282.2281
O41.36402.36802.28143.32492.64072.64073.15610.9851
H52.16921.10462.73573.32491.80491.80492.37584.0187
H62.15501.10893.23612.64071.80491.78043.38603.5225
H72.15501.10893.23612.64071.80491.78043.38603.5225
H81.90322.61231.03283.15612.37583.38603.38603.2420
H91.86413.18872.22810.98514.01873.52253.52253.2420

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 111.394 C1 C2 H6 110.006
C1 C2 H7 110.006 C1 N3 H8 109.983
C1 O4 H9 103.873 C2 C1 N3 130.005
C2 C1 O4 111.041 N3 C1 O4 118.954
H5 C2 H6 109.261 H5 C2 H7 109.261
H6 C2 H7 106.800
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.018      
2 C -0.007      
3 N -0.209      
4 O -0.156      
5 H 0.037      
6 H 0.063      
7 H 0.063      
8 H 0.078      
9 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.940 -0.928 0.000 1.321
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.307 -1.088 0.000
y -1.088 -26.553 0.000
z 0.000 0.000 -24.628
Traceless
 xyz
x 5.284 -1.088 0.000
y -1.088 -4.086 0.000
z 0.000 0.000 -1.198
Polar
3z2-r2-2.395
x2-y26.247
xy-1.088
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.556 0.101 0.000
y 0.101 5.970 0.000
z 0.000 0.000 3.177


<r2> (average value of r2) Å2
<r2> 75.478
(<r2>)1/2 8.688