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

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-264.166060
Energy at 298.15K-264.171812
HF Energy-264.166060
Nuclear repulsion energy207.536860
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 B97D3/6-31+G**
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 3155 3100 17.70      
2 A1 3129 3075 21.40      
3 A1 3112 3058 14.27      
4 A1 1569 1542 39.87      
5 A1 1404 1380 54.25      
6 A1 1139 1119 1.39      
7 A1 1061 1043 0.54      
8 A1 983 966 3.02      
9 A1 680 668 2.92      
10 A2 965 948 0.00      
11 A2 386 380 0.00      
12 B1 984 967 0.00      
13 B1 945 929 0.00      
14 B1 793 779 5.83      
15 B1 714 702 41.57      
16 B1 323 318 3.41      
17 B2 3115 3061 28.58      
18 B2 1568 1541 76.92      
19 B2 1460 1435 3.89      
20 B2 1366 1342 0.17      
21 B2 1245 1224 4.09      
22 B2 1211 1190 8.80      
23 B2 1069 1050 3.95      
24 B2 620 610 9.14      

Unscaled Zero Point Vibrational Energy (zpe) 16496.4 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 16212.6 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 B97D3/6-31+G**
ABC
0.20713 0.20010 0.10178

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.362
C2 0.000 0.000 -1.316
C3 0.000 1.191 0.626
C4 0.000 -1.191 0.626
N5 0.000 1.206 -0.720
N6 0.000 -1.206 -0.720
H7 0.000 0.000 2.452
H8 0.000 0.000 -2.408
H9 0.000 2.165 1.122
H10 0.000 -2.165 1.122

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C12.67891.40041.40042.40662.40661.08933.77062.17792.1779
C22.67892.27902.27901.34551.34553.76821.09183.26093.2609
C31.40042.27902.38261.34662.74972.17973.26011.09243.3924
C41.40042.27902.38262.74971.34662.17973.26013.39241.0924
N52.40661.34551.34662.74972.41223.39342.07472.07693.8414
N62.40661.34552.74971.34662.41223.39342.07473.84142.0769
H71.08933.76822.17972.17973.39343.39344.85992.54032.5403
H83.77061.09183.26013.26012.07472.07474.85994.14134.1413
H92.17793.26091.09243.39242.07693.84142.54034.14134.3293
H102.17793.26093.39241.09243.84142.07692.54034.14134.3293

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 122.339 C1 C3 H9 121.289
C1 C4 N6 122.339 C1 C4 H10 121.289
C2 N5 C3 115.679 C2 N6 C4 115.679
C3 C1 C4 116.580 C3 C1 H7 121.710
C4 C1 H7 121.710 N5 C2 N6 127.383
N5 C2 H8 116.309 N5 C3 H9 116.372
N6 C2 H8 116.309 N6 C4 H10 116.372
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.138      
2 C 0.001      
3 C -0.201      
4 C -0.201      
5 N -0.163      
6 N -0.163      
7 H 0.150      
8 H 0.145      
9 H 0.147      
10 H 0.147      


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 2.438 2.438
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.113 0.000 0.000
y 0.000 -37.703 0.000
z 0.000 0.000 -30.972
Traceless
 xyz
x -1.776 0.000 0.000
y 0.000 -4.160 0.000
z 0.000 0.000 5.936
Polar
3z2-r211.872
x2-y21.589
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.028 0.000 0.000
y 0.000 9.966 0.000
z 0.000 0.000 10.394


<r2> (average value of r2) Å2
<r2> 116.417
(<r2>)1/2 10.790