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

using model chemistry: B3LYPultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-264.416096
Energy at 298.15K-264.422019
HF Energy-264.416096
Nuclear repulsion energy209.519534
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 B3LYPultrafine/cc-pVTZ
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 3198 3091 9.92      
2 A1 3161 3056 15.84      
3 A1 3147 3042 14.92      
4 A1 1611 1557 42.13      
5 A1 1439 1391 60.83      
6 A1 1164 1126 2.16      
7 A1 1084 1048 1.37      
8 A1 1011 977 4.33      
9 A1 697 674 3.33      
10 A2 1008 974 0.00      
11 A2 411 398 0.00      
12 B1 1035 1000 0.00      
13 B1 991 958 0.06      
14 B1 829 802 4.22      
15 B1 742 717 41.30      
16 B1 354 342 3.11      
17 B2 3150 3046 22.91      
18 B2 1610 1556 83.02      
19 B2 1499 1449 7.04      
20 B2 1398 1352 0.32      
21 B2 1255 1213 8.42      
22 B2 1214 1173 4.03      
23 B2 1097 1060 2.83      
24 B2 636 614 12.39      

Unscaled Zero Point Vibrational Energy (zpe) 16869.3 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 16307.5 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 B3LYPultrafine/cc-pVTZ
ABC
0.21084 0.20426 0.10375

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.342
C2 0.000 0.000 -1.301
C3 0.000 1.186 0.618
C4 0.000 -1.186 0.618
N5 0.000 1.194 -0.709
N6 0.000 -1.194 -0.709
H7 0.000 0.000 2.419
H8 0.000 0.000 -2.376
H9 0.000 2.141 1.115
H10 0.000 -2.141 1.115

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C12.64321.38921.38922.37342.37341.07693.71812.15302.1530
C22.64322.25652.25651.33261.33263.72011.07493.22863.2286
C31.38922.25652.37201.32772.72522.15593.22091.07663.3640
C41.38922.25652.37202.72521.32772.15593.22093.36401.0766
N52.37341.33261.32772.72522.38783.34822.05042.05583.8015
N62.37341.33262.72521.32772.38783.34822.05043.80152.0558
H71.07693.72012.15592.15593.34823.34824.79502.50662.5066
H83.71811.07493.22093.22092.05042.05044.79504.09574.0957
H92.15303.22861.07663.36402.05583.80152.50664.09574.2821
H102.15303.22863.36401.07663.80152.05582.50664.09574.2821

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 121.727 C1 C3 H9 121.128
C1 C4 N6 121.727 C1 C4 H10 121.128
C2 N5 C3 116.031 C2 N6 C4 116.031
C3 C1 C4 117.231 C3 C1 H7 121.385
C4 C1 H7 121.385 N5 C2 N6 127.252
N5 C2 H8 116.374 N5 C3 H9 117.145
N6 C2 H8 116.374 N6 C4 H10 117.145
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.119      
2 C 0.040      
3 C -0.040      
4 C -0.040      
5 N -0.176      
6 N -0.176      
7 H 0.129      
8 H 0.118      
9 H 0.131      
10 H 0.131      


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 2.279 2.279
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.755 0.000 0.000
y 0.000 -37.054 0.003
z 0.000 0.003 -30.847
Traceless
 xyz
x -1.804 0.000 0.000
y 0.000 -3.753 0.003
z 0.000 0.003 5.557
Polar
3z2-r211.114
x2-y21.299
xy0.000
xz0.000
yz0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.481 0.000 0.000
y 0.000 9.177 0.004
z 0.000 0.004 9.827


<r2> (average value of r2) Å2
<r2> 114.413
(<r2>)1/2 10.696