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)/6-31+G**

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)/6-31+G**
 hartrees
Energy at 0K-208.660438
Energy at 298.15K-208.666744
HF Energy-207.973597
Nuclear repulsion energy121.034591
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)/6-31+G**
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' 3802 3648        
2 A' 3567 3423        
3 A' 3205 3076        
4 A' 3101 2976        
5 A' 1743 1673        
6 A' 1527 1465        
7 A' 1469 1410        
8 A' 1418 1360        
9 A' 1274 1222        
10 A' 1128 1082        
11 A' 1038 996        
12 A' 879 844        
13 A' 547 525        
14 A' 423 406        
15 A" 3184 3055        
16 A" 1508 1447        
17 A" 1078 1034        
18 A" 850 815        
19 A" 587 564        
20 A" 506 485        
21 A" 120 116        

Unscaled Zero Point Vibrational Energy (zpe) 16476.7 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 15811.1 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 CCSD(T)/6-31+G**
ABC
0.35779 0.30763 0.17067

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.131 0.000
C2 0.953 -1.035 0.000
N3 0.245 1.389 0.000
O4 -1.297 -0.296 0.000
H5 1.986 -0.687 0.000
H6 0.777 -1.652 0.883
H7 0.777 -1.652 -0.883
H8 1.250 1.555 0.000
H9 -1.846 0.505 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50561.28171.36542.14752.13522.13521.89471.8833
C21.50562.52492.36841.08931.09151.09152.60643.1945
N31.28172.52492.28392.70933.21033.21031.01852.2696
O41.36542.36842.28393.30592.63002.63003.14820.9710
H52.14751.08932.70933.30591.78091.78092.35974.0125
H62.13521.09153.21032.63001.78091.76593.35933.5081
H72.13521.09153.21032.63001.78091.76593.35933.5081
H81.89472.60641.01853.14822.35973.35933.35933.2685
H91.88333.19452.26960.97104.01253.50813.50813.2685

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 110.682 C1 C2 H6 109.570
C1 C2 H7 109.570 C1 N3 H8 110.394
C1 O4 H9 106.194 C2 C1 N3 129.704
C2 C1 O4 111.074 N3 C1 O4 119.222
H5 C2 H6 109.497 H5 C2 H7 109.497
H6 C2 H7 107.979
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability