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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-264.237288
Energy at 298.15K-264.243072
HF Energy-264.237288
Nuclear repulsion energy208.535835
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 B97D3/6-311+G(3df,2p)
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 3138 3097 16.11      
2 A1 3099 3059 17.06      
3 A1 3087 3047 18.33      
4 A1 1560 1540 37.71      
5 A1 1401 1383 55.99      
6 A1 1142 1127 2.17      
7 A1 1065 1051 0.63      
8 A1 982 970 3.16      
9 A1 682 673 2.59      
10 A2 972 959 0.00      
11 A2 388 383 0.00      
12 B1 995 982 0.00      
13 B1 955 943 0.02      
14 B1 799 789 3.99      
15 B1 720 710 38.79      
16 B1 324 320 3.39      
17 B2 3090 3050 26.22      
18 B2 1561 1540 76.69      
19 B2 1459 1440 4.16      
20 B2 1366 1348 0.20      
21 B2 1230 1214 7.18      
22 B2 1203 1188 5.60      
23 B2 1069 1055 3.03      
24 B2 623 615 10.42      

Unscaled Zero Point Vibrational Energy (zpe) 16454.7 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 16240.8 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 B97D3/6-311+G(3df,2p)
ABC
0.20903 0.20219 0.10278

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.355
C2 0.000 0.000 -1.311
C3 0.000 1.185 0.624
C4 0.000 -1.185 0.624
N5 0.000 1.199 -0.716
N6 0.000 -1.199 -0.716
H7 0.000 0.000 2.441
H8 0.000 0.000 -2.400
H9 0.000 2.155 1.120
H10 0.000 -2.155 1.120

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C12.66651.39311.39312.39362.39361.08553.75572.16802.1680
C22.66652.26912.26911.33881.33883.75201.08923.24893.2489
C31.39312.26912.37091.33982.73542.16973.24811.08943.3773
C41.39312.26912.37092.73541.33982.16973.24813.37731.0894
N52.39361.33881.33982.73542.39873.37712.06762.07003.8241
N62.39361.33882.73541.33982.39873.37712.06763.82412.0700
H71.08553.75202.16972.16973.37713.37714.84122.52772.5277
H83.75571.08923.24813.24812.06762.06764.84124.12774.1277
H92.16803.24891.08943.37732.07003.82412.52774.12774.3103
H102.16803.24893.37731.08943.82412.07002.52774.12774.3103

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 122.295 C1 C3 H9 121.270
C1 C4 N6 122.295 C1 C4 H10 121.270
C2 N5 C3 115.694 C2 N6 C4 115.694
C3 C1 C4 116.680 C3 C1 H7 121.660
C4 C1 H7 121.660 N5 C2 N6 127.342
N5 C2 H8 116.329 N5 C3 H9 116.435
N6 C2 H8 116.329 N6 C4 H10 116.435
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.179      
2 C 0.684      
3 C 0.250      
4 C 0.250      
5 N -0.905      
6 N -0.905      
7 H 0.102      
8 H 0.118      
9 H 0.114      
10 H 0.114      


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 2.323 2.323
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.905 0.000 0.000
y 0.000 -37.377 0.000
z 0.000 0.000 -30.955
Traceless
 xyz
x -1.739 0.000 0.000
y 0.000 -3.947 0.000
z 0.000 0.000 5.686
Polar
3z2-r211.372
x2-y21.472
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.550 0.000 0.000
y 0.000 10.188 0.000
z 0.000 0.000 10.683


<r2> (average value of r2) Å2
<r2> 115.404
(<r2>)1/2 10.743