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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: CCSD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Vibrational Frequencies calculated at CCSD/6-31G*
Rotational Constants (cm-1) from geometry optimized at CCSD/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCSD/6-31G*
 hartrees
Energy at 0K-148.360984
Energy at 298.15K 
HF Energy-147.903799
Nuclear repulsion energy59.014998
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3664 3460 77.86      
2 A1 2370 2238 97.22      
3 A1 1665 1572 60.48      
4 A1 1134 1071 13.32      
5 B1 498 471 0.84      
6 B1 514i 485i 372.85      
7 B2 3783 3572 90.18      
8 B2 1162 1097 4.60      
9 B2 392 370 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7077.0 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 6682.8 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/6-31G*
ABC
11.08543 0.33478 0.32496

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.221
N2 0.000 0.000 1.393
N3 0.000 0.000 -1.118
H4 0.000 0.869 -1.628
H5 0.000 -0.869 -1.628

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17161.33922.04342.0434
N21.17162.51083.14373.1437
N31.33922.51081.00751.0075
H42.04343.14371.00751.7372
H52.04343.14371.00751.7372

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.441 C1 N3 H5 120.441
N2 C1 N3 180.000 H4 N3 H5 119.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability