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

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-500.569473
Energy at 298.15K-500.577799
HF Energy-500.569473
Nuclear repulsion energy450.221445
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 HF/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' 3805 3446 0.00      
2 A1' 1991 1803 0.00      
3 A1' 1078 977 0.00      
4 A1' 717 650 0.00      
5 A2' 1569 1421 0.00      
6 A2' 1348 1221 0.00      
7 A2' 693 628 0.00      
8 A2" 1034 936 690.15      
9 A2" 769 696 166.25      
10 A2" 204 185 9.62      
11 E' 3800 3442 200.69      
11 E' 3800 3442 200.69      
12 E' 1965 1780 1016.56      
12 E' 1965 1780 1016.56      
13 E' 1578 1429 36.54      
13 E' 1578 1429 36.54      
14 E' 1536 1391 470.77      
14 E' 1536 1391 470.77      
15 E' 1114 1009 7.42      
15 E' 1114 1009 7.42      
16 E' 566 513 29.69      
16 E' 566 513 29.69      
17 E' 428 388 35.25      
17 E' 428 388 35.25      
18 E" 917 831 0.00      
18 E" 917 831 0.00      
19 E" 763 691 0.00      
19 E" 763 691 0.00      
20 E" 191 173 0.00      
20 E" 191 173 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19462.8 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 17625.5 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 HF/3-21G
ABC
0.06820 0.06820 0.03410

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.231 0.711 0.000
C2 -1.231 0.711 0.000
C3 0.000 -1.421 0.000
N4 0.000 1.329 0.000
N5 -1.151 -0.664 0.000
N6 1.151 -0.664 0.000
O7 2.275 1.313 0.000
O8 -2.275 1.313 0.000
O9 0.000 -2.627 0.000
H10 0.000 2.329 0.000
H11 -2.017 -1.164 0.000
H12 2.017 -1.164 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.46182.46181.37752.75031.37751.20523.55703.55702.03323.75032.0332
C22.46182.46181.37751.37752.75033.55701.20523.55702.03322.03323.7503
C32.46182.46182.75031.37751.37753.55703.55701.20523.75032.03322.0332
N41.37751.37752.75032.30182.30182.27472.27473.95541.00003.20703.2070
N52.75031.37751.37752.30182.30183.95542.27472.27473.20701.00003.2070
N61.37752.75031.37752.30182.30182.27473.95542.27473.20703.20701.0000
O71.20523.55703.55702.27473.95542.27474.54924.54922.49114.95542.4911
O83.55701.20523.55702.27472.27473.95544.54924.54922.49112.49114.9554
O93.55703.55701.20523.95542.27472.27474.54924.54924.95542.49112.4911
H102.03322.03323.75031.00003.20703.20702.49112.49114.95544.03384.0338
H113.75032.03322.03323.20701.00003.20704.95542.49112.49114.03384.0338
H122.03323.75032.03323.20703.20701.00002.49114.95542.49114.03384.0338

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 126.661 C1 N4 H10 116.669
C1 N6 C3 126.661 C1 N6 H12 116.669
C2 N4 H10 116.669 C2 N5 C3 126.661
C2 N5 H11 116.669 C3 N5 H11 116.669
C3 N6 H12 116.669 N4 C1 N6 113.339
N4 C1 O7 123.331 N4 C2 N5 113.339
N4 C2 O8 123.331 N5 C2 O8 123.331
N5 C3 N6 113.339 N5 C3 O9 123.331
N6 C1 O7 123.331 N6 C3 O9 123.331
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability