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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP3=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3=FULL/cc-pVDZ
 hartrees
Energy at 0K-148.375147
Energy at 298.15K-148.377583
HF Energy-147.911702
Nuclear repulsion energy59.711311
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 MP3=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3624 3408 22.46      
2 A 1291 1214 0.01      
3 A 999 939 3.63      
4 A 823 774 84.01      
5 A 516 485 0.05      
6 B 3624 3407 81.44      
7 B 2245 2111 564.13      
8 B 990 931 396.54      
9 B 520 489 71.52      

Unscaled Zero Point Vibrational Energy (zpe) 7315.4 cm-1
Scaled (by 0.9403) Zero Point Vibrational Energy (zpe) 6878.7 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 MP3=FULL/cc-pVDZ
ABC
11.09471 0.34321 0.34320

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.010
N2 0.000 1.231 -0.082
N3 0.000 -1.231 -0.082
H4 0.656 1.699 0.544
H5 -0.656 -1.699 0.544

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23441.23441.89771.8977
N21.23442.46191.02033.0669
N31.23442.46193.06691.0203
H41.89771.02033.06693.6419
H51.89773.06691.02033.6419

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 114.296 C1 N3 H5 114.296
N2 C1 N3 171.435
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability