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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: QCISD/cc-pVDZ

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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-148.389254
Energy at 298.15K-148.391570
Nuclear repulsion energy58.536240
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/cc-pVDZ
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' 3553 3409 26.18      
2 A' 2332 2237 53.89      
3 A' 1643 1576 31.28      
4 A' 1063 1020 4.28      
5 A' 756 725 195.09      
6 A' 462 444 16.78      
7 A" 3649 3500 39.11      
8 A" 1236 1186 0.63      
9 A" 391 376 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 7542.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 7236.7 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 QCISD/cc-pVDZ
ABC
9.64925 0.32944 0.32281

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.222 0.000
N2 -0.050 1.395 0.000
N3 0.134 -1.142 0.000
H4 -0.291 -1.550 0.833
H5 -0.291 -1.550 -0.833

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17451.37011.97961.9796
N21.17452.54373.07043.0704
N31.37012.54371.02051.0205
H41.97963.07041.02051.6665
H51.97963.07041.02051.6665

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 110.955 C1 N3 H5 110.955
N2 C1 N3 176.863 H4 N3 H5 109.468
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-148.385290
Energy at 298.15K 
HF Energy-147.919625
Nuclear repulsion energy58.816352
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/cc-pVDZ
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 3671 3522 70.97      
2 A1 2331 2237 96.65      
3 A1 1612 1546 42.22      
4 A1 1120 1074 13.10      
5 B1 504 483 0.06      
6 B1 568i 545i 275.91      
7 B2 3806 3652 96.41      
8 B2 1132 1086 1.52      
9 B2 386 370 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 6996.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 6712.6 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/cc-pVDZ
ABC
10.96427 0.33259 0.32279

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

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 1.398
N3 0.000 0.000 -1.122
H4 0.000 0.873 -1.629
H5 0.000 -0.873 -1.629

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17691.34332.04542.0454
N21.17692.52023.15003.1500
N31.34332.52021.00951.0095
H42.04543.15001.00951.7468
H52.04543.15001.00951.7468

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.100 C1 N3 H5 120.100
N2 C1 N3 180.000 H4 N3 H5 119.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability