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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: QCISD/6-31G

19 10 17 12 22

States and conformations

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

Conformer 1 (Cs)

Jump to S1C2
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-148.163093
Energy at 298.15K-148.164958
Nuclear repulsion energy58.348813
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
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 3642 3510 59.78      
2 A1 2250 2168 81.43      
3 A1 1727 1664 68.69      
4 A1 1085 1046 10.99      
5 B1 378 364 18.53      
6 B1 316 305 504.83      
7 B2 3766 3629 64.24      
8 B2 1209 1165 5.74      
9 B2 345 332 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 7359.5 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 7091.6 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 QCISD/6-31G
ABC
11.11972 0.32628 0.31698

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.222
N2 0.000 0.000 1.412
N3 0.000 0.000 -1.132
H4 0.000 0.867 -1.646
H5 0.000 -0.867 -1.646

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.19041.35382.05912.0591
N21.19042.54423.17863.1786
N31.35382.54421.00801.0080
H42.05913.17861.00801.7345
H52.05913.17861.00801.7345

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.642 C1 N3 H5 120.642
N2 C1 N3 180.000 H4 N3 H5 118.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-148.163093
Energy at 298.15K-148.164960
HF Energy-147.837698
Nuclear repulsion energy58.355290
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
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 3641 3509 59.76      
2 A1 2251 2169 81.64      
3 A1 1727 1664 68.75      
4 A1 1086 1047 10.96      
5 B1 377 364 19.24      
6 B1 319 307 504.01      
7 B2 3765 3628 64.25      
8 B2 1210 1166 5.73      
9 B2 345 332 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 7360.4 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 7092.5 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 QCISD/6-31G
ABC
11.11623 0.32638 0.31707

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.222
N2 0.000 0.000 1.412
N3 0.000 0.000 -1.132
H4 0.000 0.867 -1.646
H5 0.000 -0.867 -1.646

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.19041.35342.05882.0588
N21.19042.54383.17823.1782
N31.35342.54381.00811.0081
H42.05883.17821.00811.7348
H52.05883.17821.00811.7348

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.637 C1 N3 H5 120.637
N2 C1 N3 180.000 H4 N3 H5 118.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability