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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: CCD/6-311G*

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/6-311G*
 hartrees
Energy at 0K-148.413093
Energy at 298.15K-148.415437
Nuclear repulsion energy59.140070
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/6-311G*
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' 3606 3444 30.01      
2 A' 2389 2281 67.87      
3 A' 1725 1647 54.45      
4 A' 1086 1037 5.55      
5 A' 718 686 269.23      
6 A' 491 469 23.76      
7 A" 3701 3535 39.38      
8 A" 1262 1205 0.01      
9 A" 411 392 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 7693.5 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 7348.1 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/6-311G*
ABC
10.08475 0.33609 0.32853

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.223 0.000
N2 -0.041 1.382 0.000
N3 0.113 -1.128 0.000
H4 -0.253 -1.557 0.837
H5 -0.253 -1.557 -0.837

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15951.35641.98341.9834
N21.15952.51513.06323.0632
N31.35642.51511.00931.0093
H41.98343.06321.00931.6743
H51.98343.06321.00931.6743

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 113.130 C1 N3 H5 113.130
N2 C1 N3 177.231 H4 N3 H5 112.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCD/6-311G*
 hartrees
Energy at 0K-148.410526
Energy at 298.15K 
HF Energy-147.941289
Nuclear repulsion energy59.357763
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/6-311G*
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 3696 3531 66.12      
2 A1 2395 2287 111.76      
3 A1 1694 1618 61.70      
4 A1 1131 1080 14.14      
5 B1 527 504 0.33      
6 B1 535i 511i 354.94      
7 B2 3817 3645 77.60      
8 B2 1176 1123 4.00      
9 B2 411 393 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 7155.8 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 6834.5 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/6-311G*
ABC
11.19798 0.33847 0.32854

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G*

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 1.384
N3 0.000 0.000 -1.113
H4 0.000 0.864 -1.619
H5 0.000 -0.864 -1.619

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16101.33592.03502.0350
N21.16102.49693.12523.1252
N31.33592.49691.00171.0017
H42.03503.12521.00171.7284
H52.03503.12521.00171.7284

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.369 C1 N3 H5 120.369
N2 C1 N3 180.000 H4 N3 H5 119.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability