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All results from a given calculation for CH2NN (diazomethane)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-148.407469
Energy at 298.15K-148.409719
HF Energy-147.859221
Nuclear repulsion energy61.266617
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 QCISD/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3253 3082 18.57      
2 A1 2178 2064 388.53      
3 A1 1472 1395 29.20      
4 A1 1225 1161 0.70      
5 B1 598 567 3.17      
6 B1 432 409 120.50      
7 B2 3388 3209 2.18      
8 B2 1146 1086 2.42      
9 B2 428 406 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 7060.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 6689.0 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 QCISD/6-31G(2df,p)
ABC
9.20556 0.37844 0.36350

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.141
N2 0.000 0.000 0.152
N3 0.000 0.000 1.294
H4 0.000 0.953 -1.639
H5 0.000 -0.953 -1.639

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.29302.43471.07541.0754
N21.29301.14162.02892.0289
N32.43471.14163.08373.0837
H41.07542.02893.08371.9063
H51.07542.02893.08371.9063

picture of diazomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 180.000 N2 C1 H4 117.589
N2 C1 H5 117.589 H4 C1 H5 124.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability