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: CCSD(T)/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 CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-208.655470
Energy at 298.15K-208.661790
HF Energy-207.973560
Nuclear repulsion energy120.759301
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 CCSD(T)/cc-pVDZ
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' 3760 3680        
2 A' 3494 3420        
3 A' 3169 3102        
4 A' 3061 2996        
5 A' 1755 1718        
6 A' 1483 1452        
7 A' 1459 1428        
8 A' 1381 1351        
9 A' 1285 1258        
10 A' 1127 1103        
11 A' 1008 987        
12 A' 877 859        
13 A' 542 530        
14 A' 414 405        
15 A" 3144 3078        
16 A" 1463 1432        
17 A" 1058 1035        
18 A" 853 835        
19 A" 619 606        
20 A" 509 499        
21 A" 123 121        

Unscaled Zero Point Vibrational Energy (zpe) 16293.0 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 15947.6 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 CCSD(T)/cc-pVDZ
ABC
0.35759 0.30572 0.17014

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.133 0.000
C2 0.917 -1.070 0.000
N3 0.292 1.383 0.000
O4 -1.308 -0.249 0.000
H5 1.976 -0.762 0.000
H6 0.714 -1.691 0.892
H7 0.714 -1.691 -0.892
H8 1.315 1.487 0.000
H9 -1.803 0.590 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51251.28411.36252.16882.15212.15211.88801.8597
C21.51252.53152.37171.10261.10531.10532.58823.1861
N31.28412.53152.28562.72673.22863.22861.02822.2401
O41.36252.37172.28563.32352.63902.63903.14570.9736
H52.16881.10262.72673.32351.80261.80262.34434.0128
H62.15211.10533.22862.63901.80261.78313.35543.5117
H72.15211.10533.22862.63901.80261.78313.35543.5117
H81.88802.58821.02823.14572.34433.35543.35543.2444
H91.85973.18612.24010.97364.01283.51173.51173.2444

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 111.093 C1 C2 H6 109.611
C1 C2 H7 109.611 C1 N3 H8 108.975
C1 O4 H9 104.272 C2 C1 N3 129.522
C2 C1 O4 111.059 N3 C1 O4 119.419
H5 C2 H6 109.460 H5 C2 H7 109.460
H6 C2 H7 107.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability