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

using model chemistry: CID/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 CID/3-21G*
 hartrees
Energy at 0K-501.315075
Energy at 298.15K-501.323073
HF Energy-500.567614
Nuclear repulsion energy446.183374
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 CID/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' 3715 3456 0.00      
2 A1' 1917 1784 0.00      
3 A1' 1038 966 0.00      
4 A1' 691 643 0.00      
5 A2' 1507 1402 0.00      
6 A2' 1276 1188 0.00      
7 A2' 666 620 0.00      
8 A2" 932 868 551.38      
9 A2" 736 685 180.11      
10 A2" 182 169 4.38      
11 E' 3710 3453 159.56      
11 E' 3710 3453 159.56      
12 E' 1896 1765 875.12      
12 E' 1896 1765 875.12      
13 E' 1518 1412 34.07      
13 E' 1518 1412 34.07      
14 E' 1480 1377 441.11      
14 E' 1480 1377 441.12      
15 E' 1073 998 11.26      
15 E' 1073 998 11.26      
16 E' 542 504 26.71      
16 E' 542 504 26.71      
17 E' 412 383 29.61      
17 E' 412 383 29.61      
18 E" 847 788 0.00      
18 E" 847 788 0.00      
19 E" 717 668 0.00      
19 E" 717 668 0.00      
20 E" 174 162 0.00      
20 E" 174 162 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18699.0 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 17399.4 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 CID/3-21G*
ABC
0.06694 0.06694 0.03347

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.243 0.718 0.000
C2 -1.243 0.718 0.000
C3 0.000 -1.435 0.000
N4 0.000 1.338 0.000
N5 -1.159 -0.669 0.000
N6 1.159 -0.669 0.000
O7 2.297 1.326 0.000
O8 -2.297 1.326 0.000
O9 0.000 -2.653 0.000
H10 0.000 2.345 0.000
H11 -2.031 -1.172 0.000
H12 2.031 -1.172 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.48612.48611.38922.77321.38921.21743.59233.59232.04763.78022.0476
C22.48612.48611.38921.38922.77323.59231.21743.59232.04762.04763.7802
C32.48612.48612.77321.38921.38923.59233.59231.21743.78022.04762.0476
N41.38921.38922.77322.31722.31722.29742.29743.99061.00703.22883.2288
N52.77321.38921.38922.31722.31723.99062.29742.29743.22881.00703.2288
N61.38922.77321.38922.31722.31722.29743.99062.29743.22883.22881.0070
O71.21743.59233.59232.29743.99062.29744.59474.59472.51304.99762.5130
O83.59231.21743.59232.29742.29743.99064.59474.59472.51302.51304.9976
O93.59233.59231.21743.99062.29742.29744.59474.59474.99762.51302.5130
H102.04762.04763.78021.00703.22883.22882.51302.51304.99764.06144.0614
H113.78022.04762.04763.22881.00703.22884.99762.51302.51304.06144.0614
H122.04763.78022.04763.22883.22881.00702.51304.99762.51304.06144.0614

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 126.970 C1 N4 H10 116.515
C1 N6 C3 126.970 C1 N6 H12 116.515
C2 N4 H10 116.515 C2 N5 C3 126.970
C2 N5 H11 116.515 C3 N5 H11 116.515
C3 N6 H12 116.515 N4 C1 N6 113.030
N4 C1 O7 123.485 N4 C2 N5 113.030
N4 C2 O8 123.485 N5 C2 O8 123.485
N5 C3 N6 113.030 N5 C3 O9 123.485
N6 C1 O7 123.485 N6 C3 O9 123.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability