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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-186.283272
Energy at 298.15K 
HF Energy-185.690524
Nuclear repulsion energy88.602667
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 CCD/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 Ag 3429 3280 0.00      
2 Ag 2138 2045 0.00      
3 Ag 1200 1148 0.00      
4 Ag 932 892 0.00      
5 Ag 297 285 0.00      
6 Au 958 917 117.82      
7 Au 242 231 0.00      
8 Bg 677 647 0.00      
9 Bu 3430 3282 5.00      
10 Bu 1753 1677 112.54      
11 Bu 1174 1123 359.16      
12 Bu 287 274 5.45      

Unscaled Zero Point Vibrational Energy (zpe) 8258.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 7900.5 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 CCD/cc-pVDZ
ABC
8.05640 0.14027 0.13787

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.286 -0.598 0.000
C2 -0.286 0.598 0.000
N3 0.286 -1.856 0.000
N4 -0.286 1.856 0.000
H5 1.258 -2.206 0.000
H6 -1.258 2.206 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.32501.25802.51931.87903.2003
C21.32502.51931.25803.20031.8790
N31.25802.51933.75541.03334.3449
N42.51931.25803.75544.34491.0333
H51.87903.20031.03334.34495.0783
H63.20031.87904.34491.03335.0783

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 154.470 C1 N3 H5 109.790
C2 C1 N3 154.470 C2 N4 H6 109.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability