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All results from a given calculation for CH3C(OH)=NH (Ethaninidic acid)

using model chemistry: QCISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-208.298904
Energy at 298.15K-208.305220
HF Energy-207.851784
Nuclear repulsion energy119.370684
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 QCISD/6-31G
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' 3604 3473 22.16      
2 A' 3451 3325 3.75      
3 A' 3117 3003 16.30      
4 A' 3030 2920 8.17      
5 A' 1728 1665 138.92      
6 A' 1544 1488 25.83      
7 A' 1476 1423 32.81      
8 A' 1443 1390 13.84      
9 A' 1269 1222 90.78      
10 A' 1107 1067 127.03      
11 A' 1028 990 124.04      
12 A' 854 823 4.39      
13 A' 540 521 43.57      
14 A' 420 405 3.84      
15 A" 3107 2994 9.45      
16 A" 1526 1470 7.43      
17 A" 1113 1073 8.52      
18 A" 878 846 46.43      
19 A" 613 591 201.55      
20 A" 514 495 18.92      
21 A" 118 114 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 16239.1 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 15648.0 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 QCISD/6-31G
ABC
0.34640 0.30048 0.16597

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.133 0.000
C2 1.070 -0.939 0.000
N3 0.098 1.420 0.000
O4 -1.277 -0.441 0.000
H5 2.072 -0.483 0.000
H6 0.960 -1.577 0.891
H7 0.960 -1.577 -0.891
H8 1.062 1.775 0.000
H9 -1.946 0.280 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51491.29081.40072.16172.15382.15381.95491.9511
C21.51492.55152.40001.10011.10121.10122.71313.2529
N31.29082.55152.31482.74213.24323.24321.02682.3406
O41.40072.40002.31483.34972.66252.66253.22220.9830
H52.16171.10012.74213.34971.79591.79592.47334.0893
H62.15381.10123.24322.66251.79591.78123.46903.5613
H72.15381.10123.24322.66251.79591.78123.46903.5613
H81.95492.71311.02683.22222.47333.46903.46903.3586
H91.95113.25292.34060.98304.08933.56133.56133.3586

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 110.509 C1 C2 H6 109.825
C1 C2 H7 109.825 C1 N3 H8 114.542
C1 O4 H9 108.601 C2 C1 N3 130.671
C2 C1 O4 110.746 N3 C1 O4 118.584
H5 C2 H6 109.339 H5 C2 H7 109.339
H6 C2 H7 107.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability