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

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-207.222776
Energy at 298.15K-207.229042
HF Energy-206.782573
Nuclear repulsion energy119.560732
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/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' 3490 3354 8.24      
2 A' 3360 3230 2.19      
3 A' 3126 3004 12.99      
4 A' 3047 2928 5.47      
5 A' 1722 1655 103.14      
6 A' 1561 1501 31.11      
7 A' 1470 1413 34.20      
8 A' 1450 1394 19.88      
9 A' 1262 1213 94.49      
10 A' 1100 1057 114.64      
11 A' 1008 969 130.16      
12 A' 825 793 0.76      
13 A' 537 516 40.77      
14 A' 402 386 3.47      
15 A" 3112 2991 7.41      
16 A" 1554 1494 6.46      
17 A" 1121 1077 10.21      
18 A" 879 845 38.29      
19 A" 624 600 163.20      
20 A" 509 489 21.39      
21 A" 106 102 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 16132.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 15505.1 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 QCISD/3-21G*
ABC
0.34795 0.30140 0.16659

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.142 0.000
C2 1.063 -0.948 0.000
N3 0.105 1.417 0.000
O4 -1.275 -0.438 0.000
H5 2.066 -0.505 0.000
H6 0.937 -1.579 0.889
H7 0.937 -1.579 -0.889
H8 1.076 1.764 0.000
H9 -1.923 0.319 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.52181.27941.40062.16522.15142.15141.94691.9310
C21.52182.55112.39311.09661.09801.09802.71203.2433
N31.27942.55112.31142.74633.23373.23371.03132.3054
O41.40062.39312.31143.34232.64322.64323.22110.9961
H52.16521.09662.74633.34231.79431.79432.47654.0734
H62.15141.09803.23372.64321.79431.77883.46243.5455
H72.15141.09803.23372.64321.79431.77883.46243.5455
H81.94692.71201.03133.22112.47653.46243.46243.3284
H91.93103.24332.30540.99614.07343.54553.54553.3284

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 110.512 C1 C2 H6 109.344
C1 C2 H7 109.344 C1 N3 H8 114.400
C1 O4 H9 106.123 C2 C1 N3 131.007
C2 C1 O4 109.874 N3 C1 O4 119.119
H5 C2 H6 109.698 H5 C2 H7 109.698
H6 C2 H7 108.206
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability