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All results from a given calculation for C3H3N3O3 (cyanuric acid)

using model chemistry: TPSSh/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at TPSSh/3-21G
 hartrees
Energy at 0K-503.342498
Energy at 298.15K-503.350128
HF Energy-503.342498
Nuclear repulsion energy442.048683
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 TPSSh/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 A1' 3566 3455 0.00      
2 A1' 1789 1733 0.00      
3 A1' 982 951 0.00      
4 A1' 644 624 0.00      
5 A2' 1424 1379 0.00      
6 A2' 1161 1125 0.00      
7 A2' 602 584 0.00      
8 A2" 856 829 404.56      
9 A2" 712 690 147.95      
10 A2" 169 163 2.90      
11 E' 3563 3452 132.68      
11 E' 3563 3452 132.70      
12 E' 1778 1723 656.38      
12 E' 1778 1723 656.37      
13 E' 1428 1383 1.15      
13 E' 1428 1383 1.13      
14 E' 1389 1346 369.56      
14 E' 1389 1346 369.50      
15 E' 1012 980 5.31      
15 E' 1012 980 5.31      
16 E' 500 484 24.51      
16 E' 500 484 24.50      
17 E' 378 366 21.06      
17 E' 378 366 21.06      
18 E" 792 767 0.00      
18 E" 792 767 0.00      
19 E" 682 660 0.00      
19 E" 682 660 0.00      
20 E" 166 161 0.00      
20 E" 166 161 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17639.3 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 17089.0 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 TPSSh/3-21G
ABC
0.06566 0.06566 0.03283

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.255 0.724 0.000
C2 -1.255 0.724 0.000
C3 0.000 -1.449 0.000
N4 0.000 1.344 0.000
N5 -1.164 -0.672 0.000
N6 1.164 -0.672 0.000
O7 2.323 1.341 0.000
O8 -2.323 1.341 0.000
O9 0.000 -2.682 0.000
H10 0.000 2.362 0.000
H11 -2.045 -1.181 0.000
H12 2.045 -1.181 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.50932.50931.39922.79251.39921.23353.63033.63032.06293.81062.0629
C22.50932.50931.39921.39922.79253.63031.23353.63032.06292.06293.8106
C32.50932.50932.79251.39921.39923.63033.63031.23353.81062.06292.0629
N41.39921.39922.79252.32742.32742.32292.32294.02591.01813.24923.2492
N52.79251.39921.39922.32742.32744.02592.32292.32293.24921.01813.2492
N61.39922.79251.39922.32742.32742.32294.02592.32293.24923.24921.0181
O71.23353.63033.63032.32294.02592.32294.64574.64572.53725.04402.5372
O83.63031.23353.63032.32292.32294.02594.64574.64572.53722.53725.0440
O93.63033.63031.23354.02592.32292.32294.64574.64575.04402.53722.5372
H102.06292.06293.81061.01813.24923.24922.53722.53725.04404.09084.0908
H113.81062.06292.06293.24921.01813.24925.04402.53722.53724.09084.0908
H122.06293.81062.06293.24923.24921.01812.53725.04402.53724.09084.0908

picture of cyanuric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N4 C2 127.454 C1 N4 H10 116.273
C1 N6 C3 127.454 C1 N6 H12 116.273
C2 N4 H10 116.273 C2 N5 C3 127.454
C2 N5 H11 116.273 C3 N5 H11 116.273
C3 N6 H12 116.273 N4 C1 N6 112.546
N4 C1 O7 123.727 N4 C2 N5 112.546
N4 C2 O8 123.727 N5 C2 O8 123.727
N5 C3 N6 112.546 N5 C3 O9 123.727
N6 C1 O7 123.727 N6 C3 O9 123.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability