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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
1 2 no C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-148.383457
Energy at 298.15K-148.385703
Nuclear repulsion energy58.428117
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 MP4/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3531 3371        
2 A' 2230 2129        
3 A' 1684 1608        
4 A' 1059 1011        
5 A' 705 673        
6 A' 440 420        
7 A" 3632 3468        
8 A" 1230 1175        
9 A" 377 360        

Unscaled Zero Point Vibrational Energy (zpe) 7444.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 7107.7 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 MP4/6-31G*
ABC
9.90288 0.32818 0.32106

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.218 0.000
N2 -0.026 1.402 0.000
N3 0.106 -1.141 0.000
H4 -0.280 -1.567 0.839
H5 -0.280 -1.567 -0.839

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.18411.36351.99271.9927
N21.18412.54653.09603.0960
N31.36352.54651.01771.0177
H41.99273.09601.01771.6790
H51.99273.09601.01771.6790

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 112.818 C1 N3 H5 112.818
N2 C1 N3 176.794 H4 N3 H5 111.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-148.380733
Energy at 298.15K 
HF Energy-147.901048
Nuclear repulsion energy58.673113
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 MP4/6-31G*
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 3640 3476        
2 A1 2250 2149        
3 A1 1654 1579        
4 A1 1106 1056        
5 B1 475 453        
6 B1 528i 504i        
7 B2 3762 3592        
8 B2 1148 1096        
9 B2 382 365        

Unscaled Zero Point Vibrational Energy (zpe) 6944.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 6630.8 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 MP4/6-31G*
ABC
11.06077 0.33083 0.32122

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.218
N2 0.000 0.000 1.404
N3 0.000 0.000 -1.123
H4 0.000 0.870 -1.635
H5 0.000 -0.870 -1.635

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.18581.34092.04682.0468
N21.18582.52673.16063.1606
N31.34092.52671.00911.0091
H42.04683.16061.00911.7391
H52.04683.16061.00911.7391

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.489 C1 N3 H5 120.489
N2 C1 N3 180.000 H4 N3 H5 119.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability