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

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-501.486977
Energy at 298.15K-501.494669
HF Energy-500.562256
Nuclear repulsion energy442.155419
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 CCD/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' 3597 3441 0.00      
2 A1' 1844 1764 0.00      
3 A1' 999 956 0.00      
4 A1' 662 633 0.00      
5 A2' 1451 1388 0.00      
6 A2' 1213 1160 0.00      
7 A2' 643 615 0.00      
8 A2" 852 815 448.57      
9 A2" 706 675 198.18      
10 A2" 165 158 1.72      
11 E' 3595 3438 117.53      
11 E' 3595 3438 117.53      
12 E' 1831 1751 746.73      
12 E' 1831 1751 746.74      
13 E' 1462 1398 15.19      
13 E' 1462 1398 15.19      
14 E' 1423 1361 433.89      
14 E' 1423 1361 433.89      
15 E' 1029 985 16.30      
15 E' 1029 985 16.30      
16 E' 520 497 25.18      
16 E' 520 497 25.18      
17 E' 397 379 25.82      
17 E' 397 379 25.82      
18 E" 789 754 0.00      
18 E" 789 754 0.00      
19 E" 675 646 0.00      
19 E" 675 646 0.00      
20 E" 159 152 0.00      
20 E" 159 152 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17945.0 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 17164.4 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 CCD/3-21G*
ABC
0.06572 0.06572 0.03286

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.255 0.725 0.000
C2 -1.255 0.725 0.000
C3 0.000 -1.449 0.000
N4 0.000 1.349 0.000
N5 -1.168 -0.674 0.000
N6 1.168 -0.674 0.000
O7 2.319 1.339 0.000
O8 -2.319 1.339 0.000
O9 0.000 -2.678 0.000
H10 0.000 2.364 0.000
H11 -2.047 -1.182 0.000
H12 2.047 -1.182 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.51042.51041.40172.79791.40171.22863.62683.62682.06443.81302.0644
C22.51042.51041.40171.40172.79793.62681.22863.62682.06442.06443.8130
C32.51042.51042.79791.40171.40173.62683.62681.22863.81302.06442.0644
N41.40171.40172.79792.33572.33572.31922.31924.02661.01513.25473.2547
N52.79791.40171.40172.33572.33574.02662.31922.31923.25471.01513.2547
N61.40172.79791.40172.33572.33572.31924.02662.31923.25473.25471.0151
O71.22863.62683.62682.31924.02662.31924.63844.63842.53555.04172.5355
O83.62681.22863.62682.31922.31924.02664.63844.63842.53552.53555.0417
O93.62683.62681.22864.02662.31922.31924.63844.63845.04172.53552.5355
H102.06442.06443.81301.01513.25473.25472.53552.53555.04174.09404.0940
H113.81302.06442.06443.25471.01513.25475.04172.53552.53554.09404.0940
H122.06443.81302.06443.25473.25471.01512.53555.04172.53554.09404.0940

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 127.143 C1 N4 H10 116.429
C1 N6 C3 127.143 C1 N6 H12 116.429
C2 N4 H10 116.429 C2 N5 C3 127.143
C2 N5 H11 116.429 C3 N5 H11 116.428
C3 N6 H12 116.428 N4 C1 N6 112.857
N4 C1 O7 123.571 N4 C2 N5 112.857
N4 C2 O8 123.571 N5 C2 O8 123.571
N5 C3 N6 112.857 N5 C3 O9 123.571
N6 C1 O7 123.571 N6 C3 O9 123.571
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability