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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: MP3/6-31G*

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 MP3/6-31G*
 hartrees
Energy at 0K-148.354656
Energy at 298.15K-148.356949
Nuclear repulsion energy59.007063
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 MP3/6-31G*
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' 3603 3381 41.86      
2 A' 2447 2297 77.37      
3 A' 1703 1598 52.00      
4 A' 1105 1037 5.23      
5 A' 685 643 280.76      
6 A' 469 440 22.45      
7 A" 3699 3472 52.34      
8 A" 1247 1171 0.07      
9 A" 400 375 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 7678.1 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 7206.6 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 MP3/6-31G*
ABC
10.04172 0.33474 0.32721

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.223 0.000
N2 -0.038 1.385 0.000
N3 0.111 -1.130 0.000
H4 -0.257 -1.562 0.839
H5 -0.257 -1.562 -0.839

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16281.35761.98941.9894
N21.16282.51973.07263.0726
N31.35762.51971.01301.0130
H41.98943.07261.01301.6779
H51.98943.07261.01301.6779

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 113.312 C1 N3 H5 113.312
N2 C1 N3 177.162 H4 N3 H5 111.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-148.352348
Energy at 298.15K 
HF Energy-147.904934
Nuclear repulsion energy59.223131
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 MP3/6-31G*
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 3699 3471 85.07      
2 A1 2447 2296 121.65      
3 A1 1672 1569 64.63      
4 A1 1153 1082 12.78      
5 B1 506 475 0.92      
6 B1 504i 473i 376.63      
7 B2 3816 3582 99.05      
8 B2 1169 1097 5.12      
9 B2 402 378        

Unscaled Zero Point Vibrational Energy (zpe) 7179.3 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 6738.5 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 MP3/6-31G*
ABC
11.12342 0.33715 0.32723

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.223
N2 0.000 0.000 1.387
N3 0.000 0.000 -1.114
H4 0.000 0.867 -1.623
H5 0.000 -0.867 -1.623

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16471.33702.03932.0393
N21.16472.50173.13293.1329
N31.33702.50171.00531.0053
H42.03933.13291.00531.7342
H52.03933.13291.00531.7342

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.402 C1 N3 H5 120.402
N2 C1 N3 180.000 H4 N3 H5 119.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability