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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: CCSD(T)=FULL/aug-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 CCSD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-148.437815
Energy at 298.15K-148.440216
HF Energy-147.922664
Nuclear repulsion energy59.239359
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 CCSD(T)=FULL/aug-cc-pVDZ
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 3559 3457        
2 A 1228 1192        
3 A 965 937        
4 A 760 738        
5 A 516 501        
6 B 3560 3457        
7 B 2143 2081        
8 B 959 931        
9 B 520 505        

Unscaled Zero Point Vibrational Energy (zpe) 7104.9 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 6900.2 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 CCSD(T)=FULL/aug-cc-pVDZ
ABC
11.44195 0.33704 0.33688

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.025
N2 0.000 1.240 -0.086
N3 0.000 -1.240 -0.086
H4 0.642 1.746 0.527
H5 -0.642 -1.746 0.527

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.24471.24471.92631.9263
N21.24472.47951.02153.1145
N31.24472.47953.11451.0215
H41.92631.02153.11453.7196
H51.92633.11451.02153.7196

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.081 C1 N3 H5 116.081
N2 C1 N3 169.744
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability