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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-264.053417
Energy at 298.15K-264.059312
HF Energy-264.053417
Nuclear repulsion energy209.195282
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 HSEh1PBE/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 3244 3097 6.99      
2 A1 3214 3068 14.34      
3 A1 3196 3051 12.91      
4 A1 1649 1575 54.54      
5 A1 1455 1389 53.17      
6 A1 1175 1122 0.52      
7 A1 1089 1039 0.69      
8 A1 1024 978 4.02      
9 A1 696 665 3.48      
10 A2 1008 962 0.00      
11 A2 405 387 0.00      
12 B1 1031 985 0.00      
13 B1 987 943 0.01      
14 B1 826 789 7.13      
15 B1 737 704 45.37      
16 B1 348 332 3.43      
17 B2 3199 3054 18.20      
18 B2 1646 1572 88.59      
19 B2 1507 1439 6.48      
20 B2 1396 1333 0.21      
21 B2 1298 1239 1.03      
22 B2 1247 1191 11.02      
23 B2 1104 1054 3.61      
24 B2 632 604 9.89      

Unscaled Zero Point Vibrational Energy (zpe) 17056.8 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 16285.8 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 HSEh1PBE/6-31+G**
ABC
0.21026 0.20359 0.10344

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.345
C2 0.000 0.000 -1.304
C3 0.000 1.188 0.619
C4 0.000 -1.188 0.619
N5 0.000 1.194 -0.710
N6 0.000 -1.194 -0.710
H7 0.000 0.000 2.425
H8 0.000 0.000 -2.382
H9 0.000 2.147 1.116
H10 0.000 -2.147 1.116

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C12.64861.39251.39252.37682.37681.08073.72712.15912.1591
C22.64862.26002.26001.33351.33353.72931.07853.23523.2352
C31.39252.26002.37641.32892.72792.16253.22761.08023.3721
C41.39252.26002.37642.72791.32892.16253.22763.37211.0802
N52.37681.33351.32892.72792.38833.35542.05472.06013.8078
N62.37681.33352.72791.32892.38833.35542.05473.80782.0601
H71.08073.72932.16252.16253.35543.35544.80782.51462.5146
H83.72711.07853.22763.22762.05472.05474.80784.10484.1048
H92.15913.23521.08023.37212.06013.80782.51464.10484.2940
H102.15913.23523.37211.08023.80782.06012.51464.10484.2940

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 121.687 C1 C3 H9 121.140
C1 C4 N6 121.687 C1 C4 H10 121.140
C2 N5 C3 116.173 C2 N6 C4 116.173
C3 C1 C4 117.140 C3 C1 H7 121.430
C4 C1 H7 121.430 N5 C2 N6 127.141
N5 C2 H8 116.430 N5 C3 H9 117.173
N6 C2 H8 116.430 N6 C4 H10 117.173
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.128      
2 C 0.001      
3 C -0.223      
4 C -0.223      
5 N -0.173      
6 N -0.173      
7 H 0.173      
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 2.465 2.465
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.170 0.000 0.000
y 0.000 -37.448 0.000
z 0.000 0.000 -30.685
Traceless
 xyz
x -2.103 0.000 0.000
y 0.000 -4.021 0.000
z 0.000 0.000 6.124
Polar
3z2-r212.248
x2-y21.279
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.857 0.000 0.000
y 0.000 9.525 0.000
z 0.000 0.000 9.923


<r2> (average value of r2) Å2
<r2> 114.846
(<r2>)1/2 10.717