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

using model chemistry: wB97X-D/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-264.243716
Energy at 298.15K-264.249635
HF Energy-264.243716
Nuclear repulsion energy209.148126
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/cc-pVDZ
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 3258 3103 7.11      
2 A1 3227 3074 14.51      
3 A1 3212 3059 13.18      
4 A1 1661 1582 55.66      
5 A1 1467 1397 57.32      
6 A1 1181 1125 0.50      
7 A1 1093 1041 0.74      
8 A1 1028 979 4.01      
9 A1 701 667 3.44      
10 A2 1006 958 0.00      
11 A2 408 389 0.00      
12 B1 1032 983 0.01      
13 B1 986 939 0.07      
14 B1 822 783 5.26      
15 B1 733 698 48.97      
16 B1 352 335 3.65      
17 B2 3215 3062 18.61      
18 B2 1657 1579 92.80      
19 B2 1512 1440 6.87      
20 B2 1402 1335 0.07      
21 B2 1283 1222 4.14      
22 B2 1237 1179 9.44      
23 B2 1104 1051 3.77      
24 B2 636 606 10.12      

Unscaled Zero Point Vibrational Energy (zpe) 17104.9 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 16294.2 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 wB97X-D/cc-pVDZ
ABC
0.20999 0.20366 0.10339

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.352
C2 0.000 0.000 -1.306
C3 0.000 1.181 0.621
C4 0.000 -1.181 0.621
N5 0.000 1.195 -0.714
N6 0.000 -1.195 -0.714
H7 0.000 0.000 2.436
H8 0.000 0.000 -2.392
H9 0.000 2.150 1.113
H10 0.000 -2.150 1.113

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C12.65831.38911.38912.38732.38731.08393.74442.16352.1635
C22.65832.26072.26071.33401.33403.74221.08613.23683.2368
C31.38912.26072.36261.33572.72632.16533.23691.08663.3677
C41.38912.26072.36262.72631.33572.16533.23693.36771.0866
N52.38731.33401.33572.72632.39093.36952.06032.06183.8123
N62.38731.33402.72631.33572.39093.36952.06033.81232.0618
H71.08393.74222.16532.16533.36953.36954.82832.52462.5246
H83.74441.08613.23693.23692.06032.06034.82834.11244.1124
H92.16353.23681.08663.36772.06183.81232.52464.11244.3006
H102.16353.23683.36771.08663.81232.06182.52464.11244.3006

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 122.348 C1 C3 H9 121.348
C1 C4 N6 122.348 C1 C4 H10 121.348
C2 N5 C3 115.737 C2 N6 C4 115.737
C3 C1 C4 116.516 C3 C1 H7 121.742
C4 C1 H7 121.742 N5 C2 N6 127.313
N5 C2 H8 116.343 N5 C3 H9 116.304
N6 C2 H8 116.343 N6 C4 H10 116.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.066      
2 C 0.026      
3 C -0.178      
4 C -0.178      
5 N -0.201      
6 N -0.201      
7 H 0.175      
8 H 0.160      
9 H 0.165      
10 H 0.165      


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 2.510 2.510
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.108 0.000 0.000
y 0.000 -37.434 0.000
z 0.000 0.000 -30.532
Traceless
 xyz
x -2.124 0.000 0.000
y 0.000 -4.115 0.000
z 0.000 0.000 6.239
Polar
3z2-r212.478
x2-y21.327
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.867 0.000 0.000
y 0.000 9.482 0.000
z 0.000 0.000 9.848


<r2> (average value of r2) Å2
<r2> 114.831
(<r2>)1/2 10.716