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

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-264.264881
Energy at 298.15K-264.270760
Nuclear repulsion energy206.119081
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 B3LYP/LANL2DZ
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 3248 3122 7.47      
2 A1 3240 3114 24.10      
3 A1 3209 3084 7.36      
4 A1 1583 1522 20.35      
5 A1 1430 1375 61.24      
6 A1 1151 1106 1.61      
7 A1 1070 1029 0.85      
8 A1 976 938 1.21      
9 A1 686 659 4.57      
10 A2 993 954 0.00      
11 A2 419 402 0.00      
12 B1 1036 996 0.08      
13 B1 983 945 0.24      
14 B1 836 804 21.55      
15 B1 757 727 51.10      
16 B1 360 346 3.85      
17 B2 3213 3089 18.31      
18 B2 1579 1518 61.10      
19 B2 1477 1419 11.24      
20 B2 1403 1348 0.14      
21 B2 1242 1194 7.06      
22 B2 1225 1178 1.31      
23 B2 1081 1039 7.11      
24 B2 632 608 9.14      

Unscaled Zero Point Vibrational Energy (zpe) 16914.1 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 16257.9 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 B3LYP/LANL2DZ
ABC
0.20316 0.19818 0.10032

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.373
C2 0.000 0.000 -1.339
C3 0.000 1.200 0.636
C4 0.000 -1.200 0.636
N5 0.000 1.210 -0.723
N6 0.000 -1.210 -0.723
H7 0.000 0.000 2.458
H8 0.000 0.000 -2.424
H9 0.000 2.171 1.126
H10 0.000 -2.171 1.126

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C12.71141.40801.40802.41982.41981.08513.79672.18472.1847
C22.71142.31122.31121.35751.35753.79641.08533.28453.2845
C31.40802.31122.40041.35942.76702.18123.28731.08713.4063
C41.40802.31122.40042.76701.35942.18123.28733.40631.0871
N52.41981.35751.35942.76702.41963.40302.08742.08403.8532
N62.41981.35752.76701.35942.41963.40302.08743.85322.0840
H71.08513.79642.18122.18123.40303.40304.88172.54652.5465
H83.79671.08533.28733.28732.08742.08744.88174.16134.1613
H92.18473.28451.08713.40632.08403.85322.54654.16134.3414
H102.18473.28453.40631.08713.85322.08402.54654.16134.3414

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 121.931 C1 C3 H9 121.694
C1 C4 N6 121.931 C1 C4 H10 121.694
C2 N5 C3 116.569 C2 N6 C4 116.569
C3 C1 C4 116.948 C3 C1 H7 121.526
C4 C1 H7 121.526 N5 C2 N6 126.052
N5 C2 H8 116.974 N5 C3 H9 116.375
N6 C2 H8 116.974 N6 C4 H10 116.375
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.161      
2 C -0.299      
3 C -0.237      
4 C -0.237      
5 N -0.023      
6 N -0.023      
7 H 0.234      
8 H 0.250      
9 H 0.248      
10 H 0.248      


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 2.815 2.815
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.259 0.000 0.000
y 0.000 8.437 0.000
z 0.000 0.000 9.015


<r2> (average value of r2) Å2
<r2> 117.754
(<r2>)1/2 10.851