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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Vibrational Frequencies calculated at HF/3-21G
Rotational Constants (cm-1) from geometry optimized at HF/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-147.084641
Energy at 298.15K-147.086957
HF Energy-147.084641
Nuclear repulsion energy59.978397
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 HF/3-21G
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 3777 3420 77.26      
2 A1 2544 2304 111.21      
3 A1 1802 1632 82.75      
4 A1 1173 1062 11.03      
5 B1 603 546 91.60      
6 B1 428 388 437.36      
7 B2 3894 3527 102.29      
8 B2 1282 1161 6.10      
9 B2 491 445 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 7995.9 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 7241.1 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 HF/3-21G
ABC
11.33695 0.34587 0.33563

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

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 1.368
N3 0.000 0.000 -1.101
H4 0.000 0.859 -1.606
H5 0.000 -0.859 -1.606

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.14481.32432.02082.0208
N21.14482.46913.09553.0955
N31.32432.46910.99630.9963
H42.02083.09550.99631.7178
H52.02083.09550.99631.7178

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.449 C1 N3 H5 120.449
N2 C1 N3 180.000 H4 N3 H5 119.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.671      
2 N -0.477      
3 N -0.956      
4 H 0.381      
5 H 0.381      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -4.686 4.686
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.326 0.000 0.000
y 0.000 -14.564 0.000
z 0.000 0.000 -18.346
Traceless
 xyz
x -1.871 0.000 0.000
y 0.000 3.772 0.000
z 0.000 0.000 -1.901
Polar
3z2-r2-3.802
x2-y2-3.762
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.957 0.000 0.000
y 0.000 1.659 0.000
z 0.000 0.000 4.053


<r2> (average value of r2) Å2
<r2> 39.187
(<r2>)1/2 6.260