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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-146.150971
Energy at 298.15K-146.153200
HF Energy-145.940333
Nuclear repulsion energy57.510844
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 MP2=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3610 3209 0.01      
2 A 1197 1064 2.11      
3 A 1086 965 0.07      
4 A 904 803 47.85      
5 A 463 412 0.31      
6 B 3624 3222 22.18      
7 B 2202 1958 82.00      
8 B 1043 927 328.51      
9 B 466 414 56.20      

Unscaled Zero Point Vibrational Energy (zpe) 7297.6 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 6486.9 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 MP2=FULL/STO-3G
ABC
9.14256 0.32221 0.32140

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.085
N2 0.000 1.270 -0.113
N3 0.000 -1.270 -0.113
H4 0.695 1.754 0.534
H5 -0.695 -1.754 0.534

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.28481.28481.93961.9396
N21.28482.53921.06603.1691
N31.28482.53923.16911.0660
H41.93961.06603.16913.7735
H51.93963.16911.06603.7735

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 110.849 C1 N3 H5 110.849
N2 C1 N3 162.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability