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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G
 hartrees
Energy at 0K-148.159879
Energy at 298.15K-148.161701
Nuclear repulsion energy58.095675
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 MP2=FULL/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 3660 3477 74.86      
2 A1 2220 2109 72.63      
3 A1 1732 1646 70.81      
4 A1 1065 1012 13.17      
5 B1 354 336 1.74      
6 B1 287 273 517.80      
7 B2 3792 3603 77.53      
8 B2 1211 1151 8.48      
9 B2 365 347 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 7342.4 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 6976.0 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 MP2=FULL/6-31G
ABC
11.12786 0.32325 0.31413

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.421
N3 0.000 0.000 -1.137
H4 0.000 0.867 -1.650
H5 0.000 -0.867 -1.650

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.20231.35492.05922.0592
N21.20232.55723.19023.1902
N31.35492.55721.00731.0073
H42.05923.19021.00731.7339
H52.05923.19021.00731.7339

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.614 C1 N3 H5 120.614
N2 C1 N3 180.000 H4 N3 H5 118.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-148.159879
Energy at 298.15K-148.161702
HF Energy-147.835356
Nuclear repulsion energy58.099592
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 MP2=FULL/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 3660 3477 74.86      
2 A1 2220 2110 72.69      
3 A1 1732 1646 70.82      
4 A1 1066 1012 13.16      
5 B1 353 336 1.56      
6 B1 288 274 517.94      
7 B2 3792 3602 77.45      
8 B2 1211 1151 8.49      
9 B2 364 346 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 7343.2 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 6976.7 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 MP2=FULL/6-31G
ABC
11.13056 0.32330 0.31417

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.421
N3 0.000 0.000 -1.136
H4 0.000 0.867 -1.650
H5 0.000 -0.867 -1.650

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.20221.35482.05932.0593
N21.20222.55693.19023.1902
N31.35482.55691.00731.0073
H42.05933.19021.00731.7337
H52.05933.19021.00731.7337

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.627 C1 N3 H5 120.627
N2 C1 N3 180.000 H4 N3 H5 118.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability