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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: CCD/cc-pVTZ

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 CCD/cc-pVTZ
 hartrees
Energy at 0K-148.519367
Energy at 298.15K-148.521698
Nuclear repulsion energy59.331169
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 CCD/cc-pVTZ
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' 3599 3361 40.25      
2 A' 2393 2235 77.49      
3 A' 1665 1555 37.71      
4 A' 1086 1014 7.37      
5 A' 679 634 204.13      
6 A' 490 458 23.88      
7 A" 3694 3450 55.72      
8 A" 1236 1154 0.07      
9 A" 411 384 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 7627.1 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 7121.5 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 CCD/cc-pVTZ
ABC
10.10986 0.33828 0.33079

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.223 0.000
N2 -0.039 1.377 0.000
N3 0.114 -1.125 0.000
H4 -0.261 -1.550 0.833
H5 -0.261 -1.550 -0.833

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15491.35291.97591.9759
N21.15492.50703.05123.0512
N31.35292.50701.00701.0070
H41.97593.05121.00701.6656
H51.97593.05121.00701.6656

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 112.887 C1 N3 H5 112.887
N2 C1 N3 177.121 H4 N3 H5 111.590
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCD/cc-pVTZ
 hartrees
Energy at 0K-148.517040
Energy at 298.15K 
HF Energy-147.965956
Nuclear repulsion energy59.563926
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 CCD/cc-pVTZ
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 3694 3449 77.46      
2 A1 2397 2238 122.40      
3 A1 1647 1538 47.74      
4 A1 1131 1056 16.28      
5 B1 526 491 0.36      
6 B1 496i 463i 258.92      
7 B2 3819 3566 99.06      
8 B2 1156 1079 1.72      
9 B2 407 380 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7139.9 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 6666.5 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 CCD/cc-pVTZ
ABC
11.22620 0.34090 0.33085

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

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 1.379
N3 0.000 0.000 -1.109
H4 0.000 0.863 -1.611
H5 0.000 -0.863 -1.611

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15651.33202.02682.0268
N21.15652.48853.11243.1124
N31.33202.48850.99840.9984
H42.02683.11240.99841.7263
H52.02683.11240.99841.7263

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.173 C1 N3 H5 120.173
N2 C1 N3 180.000 H4 N3 H5 119.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability