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

using model chemistry: QCISD/6-31G**

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/6-31G**
 hartrees
Energy at 0K-504.804204
Energy at 298.15K-504.811590
HF Energy-503.393332
Nuclear repulsion energy446.403122
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1' 3727 3508 0.00      
2 A1' 1893 1782 0.00      
3 A1' 1006 947 0.00      
4 A1' 680 640 0.00      
5 A2' 1416 1333 0.00      
6 A2' 1277 1203 0.00      
7 A2' 631 594 0.00      
8 A2" 717 675 69.05      
9 A2" 667 628 382.91      
10 A2" 115 109 0.13      
11 E' 3724 3506 160.68      
11 E' 3724 3506 160.68      
12 E' 1880 1770 927.02      
12 E' 1880 1770 927.04      
13 E' 1511 1423 353.83      
13 E' 1511 1423 353.83      
14 E' 1438 1353 58.86      
14 E' 1438 1353 58.85      
15 E' 1053 992 15.33      
15 E' 1053 992 15.33      
16 E' 523 493 22.21      
16 E' 523 493 22.21      
17 E' 392 369 27.65      
17 E' 392 369 27.67      
18 E" 734 691 0.00      
18 E" 734 691 0.00      
19 E" 598 563 0.00      
19 E" 598 563 0.00      
20 E" 143 134 0.00      
20 E" 143 134 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18061.7 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 17003.3 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/6-31G**
ABC
0.06701 0.06701 0.03351

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

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 -1.436 0.000
N4 0.000 1.338 0.000
N5 -1.159 -0.669 0.000
N6 1.159 -0.669 0.000
O7 2.295 1.325 0.000
O8 -2.295 1.325 0.000
O9 0.000 -2.650 0.000
H10 0.000 2.346 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
C12.48702.48701.38962.77401.38961.21443.59043.59042.04883.78212.0488
C22.48702.48701.38961.38962.77403.59041.21443.59042.04882.04883.7821
C32.48702.48702.77401.38961.38963.59043.59041.21443.78212.04882.0488
N41.38961.38962.77402.31762.31762.29522.29523.98831.00813.23033.2303
N52.77401.38961.38962.31762.31763.98832.29522.29523.23031.00813.2303
N61.38962.77401.38962.31762.31762.29523.98832.29523.23033.23031.0081
O71.21443.59043.59042.29523.98832.29524.59034.59032.51204.99642.5120
O83.59041.21443.59042.29522.29523.98834.59034.59032.51202.51204.9964
O93.59043.59041.21443.98832.29522.29524.59034.59034.99642.51202.5120
H102.04882.04883.78211.00813.23033.23032.51202.51204.99644.06374.0637
H113.78212.04882.04883.23031.00813.23034.99642.51202.51204.06374.0637
H122.04883.78212.04883.23033.23031.00812.51204.99642.51204.06374.0637

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 126.987 C1 N4 H10 116.507
C1 N6 C3 126.987 C1 N6 H12 116.507
C2 N4 H10 116.507 C2 N5 C3 126.987
C2 N5 H11 116.507 C3 N5 H11 116.507
C3 N6 H12 116.507 N4 C1 N6 113.013
N4 C1 O7 123.493 N4 C2 N5 113.013
N4 C2 O8 123.493 N5 C2 O8 123.493
N5 C3 N6 113.013 N5 C3 O9 123.493
N6 C1 O7 123.493 N6 C3 O9 123.493
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability