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 C3H3N3O3 (cyanuric acid)

using model chemistry: QCISD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at QCISD/TZVP
 hartrees
Energy at 0K-505.046999
Energy at 298.15K 
HF Energy-503.551942
Nuclear repulsion energy447.754250
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 QCISD/TZVP
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' 3674 3510 0.00      
2 A1' 1867 1784 0.00      
3 A1' 1000 956 0.00      
4 A1' 674 644 0.00      
5 A2' 1417 1353 0.00      
6 A2' 1244 1188 0.00      
7 A2' 645 616 0.00      
8 A2" 674 644 5.91      
9 A2" 550 525 376.96      
10 A2" 84i 81i 2.67      
11 E' 3671 3507 152.59      
11 E' 3671 3507 152.59      
12 E' 1848 1765 1051.22      
12 E' 1848 1765 1051.23      
13 E' 1488 1421 320.10      
13 E' 1488 1421 320.17      
14 E' 1432 1368 140.07      
14 E' 1432 1368 140.16      
15 E' 1047 1000 25.14      
15 E' 1047 1000 25.15      
16 E' 524 501 25.44      
16 E' 524 501 25.46      
17 E' 398 381 27.56      
17 E' 398 381 27.58      
18 E" 708 676 0.00      
18 E" 708 676 0.00      
19 E" 436 417 0.00      
19 E" 436 417 0.00      
20 E" 97i 92i 0.00      
20 E" 97i 92i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17285.9 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 16513.2 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 QCISD/TZVP
ABC
0.06746 0.06746 0.03373

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.241 0.716 0.000
C2 -1.241 0.716 0.000
C3 0.000 -1.433 0.000
N4 0.000 1.338 0.000
N5 -1.159 -0.669 0.000
N6 1.159 -0.669 0.000
O7 2.285 1.319 0.000
O8 -2.285 1.319 0.000
O9 0.000 -2.638 0.000
H10 0.000 2.347 0.000
H11 -2.032 -1.173 0.000
H12 2.032 -1.173 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.48172.48171.38792.77091.38791.20553.57683.57682.04893.77972.0489
C22.48172.48171.38791.38792.77093.57681.20553.57682.04892.04893.7797
C32.48172.48172.77091.38791.38793.57683.57681.20553.77972.04892.0489
N41.38791.38792.77092.31772.31772.28492.28493.97641.00883.23093.2309
N52.77091.38791.38792.31772.31773.97642.28492.28493.23091.00883.2309
N61.38792.77091.38792.31772.31772.28493.97642.28493.23093.23091.0088
O71.20553.57683.57682.28493.97642.28494.56974.56972.50534.98522.5053
O83.57681.20553.57682.28492.28493.97644.56974.56972.50532.50534.9852
O93.57683.57681.20553.97642.28492.28494.56974.56974.98522.50532.5053
H102.04892.04893.77971.00883.23093.23092.50532.50534.98524.06494.0649
H113.77972.04892.04893.23091.00883.23094.98522.50532.50534.06494.0649
H122.04893.77972.04893.23093.23091.00882.50534.98522.50534.06494.0649

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 126.774 C1 N4 H10 116.613
C1 N6 C3 126.774 C1 N6 H12 116.613
C2 N4 H10 116.613 C2 N5 C3 126.774
C2 N5 H11 116.613 C3 N5 H11 116.613
C3 N6 H12 116.613 N4 C1 N6 113.226
N4 C1 O7 123.387 N4 C2 N5 113.226
N4 C2 O8 123.387 N5 C2 O8 123.387
N5 C3 N6 113.226 N5 C3 O9 123.387
N6 C1 O7 123.387 N6 C3 O9 123.387
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability