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All results from a given calculation for C4H4N2 (1,3-Diazine)

using model chemistry: wB97X-D/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/TZVP
 hartrees
Energy at 0K-264.310058
Energy at 298.15K-264.315971
HF Energy-264.310058
Nuclear repulsion energy209.943273
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 wB97X-D/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 3245 3099 5.37      
2 A1 3207 3062 12.04      
3 A1 3196 3052 15.65      
4 A1 1650 1576 51.09      
5 A1 1464 1398 62.68      
6 A1 1183 1130 0.63      
7 A1 1096 1047 0.92      
8 A1 1027 981 4.18      
9 A1 705 673 3.53      
10 A2 997 952 0.00      
11 A2 411 392 0.00      
12 B1 1009 964 0.03      
13 B1 977 933 0.05      
14 B1 821 784 5.32      
15 B1 733 700 44.65      
16 B1 347 331 3.25      
17 B2 3199 3055 17.14      
18 B2 1647 1573 89.08      
19 B2 1512 1444 8.73      
20 B2 1408 1344 0.10      
21 B2 1272 1215 8.72      
22 B2 1216 1162 5.03      
23 B2 1105 1055 4.05      
24 B2 642 613 9.87      

Unscaled Zero Point Vibrational Energy (zpe) 17033.5 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 16267.0 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 wB97X-D/TZVP
ABC
0.21151 0.20537 0.10420

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.346
C2 0.000 0.000 -1.301
C3 0.000 1.176 0.619
C4 0.000 -1.176 0.619
N5 0.000 1.191 -0.711
N6 0.000 -1.191 -0.711
H7 0.000 0.000 2.427
H8 0.000 0.000 -2.385
H9 0.000 2.143 1.110
H10 0.000 -2.143 1.110

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C12.64691.38291.38292.37742.37741.08133.73082.15602.1560
C22.64692.25142.25141.32891.32893.72811.08393.22553.2255
C31.38292.25142.35251.33052.71552.15733.22571.08443.3554
C41.38292.25142.35252.71551.33052.15733.22573.35541.0844
N52.37741.32891.33052.71552.38213.35722.05392.05523.7992
N62.37741.32892.71551.33052.38213.35722.05393.79922.0552
H71.08133.72812.15732.15733.35723.35724.81212.51562.5156
H83.73081.08393.22573.22572.05392.05394.81214.09944.0994
H92.15603.22551.08443.35542.05523.79922.51564.09944.2861
H102.15603.22553.35541.08443.79922.05522.51564.09944.2861

picture of 1,3-Diazine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N5 122.365 C1 C3 H9 121.350
C1 C4 N6 122.365 C1 C4 H10 121.350
C2 N5 C3 115.685 C2 N6 C4 115.685
C3 C1 C4 116.548 C3 C1 H7 121.726
C4 C1 H7 121.726 N5 C2 N6 127.351
N5 C2 H8 116.324 N5 C3 H9 116.285
N6 C2 H8 116.324 N6 C4 H10 116.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.073      
2 C -0.058      
3 C -0.118      
4 C -0.118      
5 N -0.091      
6 N -0.091      
7 H 0.153      
8 H 0.130      
9 H 0.132      
10 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.434 2.434
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.770 0.000 0.000
y 0.000 -37.189 0.000
z 0.000 0.000 -30.565
Traceless
 xyz
x -1.893 0.000 0.000
y 0.000 -4.022 0.000
z 0.000 0.000 5.915
Polar
3z2-r211.830
x2-y21.420
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.625 0.000 0.000
y 0.000 9.097 0.000
z 0.000 0.000 9.620


<r2> (average value of r2) Å2
<r2> 114.018
(<r2>)1/2 10.678