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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: LSDA/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 LSDA/3-21G*
Rotational Constants (cm-1) from geometry optimized at LSDA/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-147.153129
Energy at 298.15K-147.155403
HF Energy-147.153129
Nuclear repulsion energy59.078584
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 LSDA/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 3476 3413 62.70      
2 A1 2307 2266 76.07      
3 A1 1616 1587 79.84      
4 A1 1136 1116 6.02      
5 B1 574 564 94.77      
6 B1 452 444 338.88      
7 B2 3576 3512 77.49      
8 B2 1139 1118 7.66      
9 B2 465 457 2.08      

Unscaled Zero Point Vibrational Energy (zpe) 7370.3 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 7237.6 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 LSDA/3-21G*
ABC
10.85262 0.33748 0.32730

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.213
N2 0.000 0.000 1.391
N3 0.000 0.000 -1.108
H4 0.000 0.878 -1.630
H5 0.000 -0.878 -1.630

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17881.32062.04122.0412
N21.17882.49943.14653.1465
N31.32062.49941.02141.0214
H42.04123.14651.02141.7557
H52.04123.14651.02141.7557

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.741 C1 N3 H5 120.741
N2 C1 N3 180.000 H4 N3 H5 118.517
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.504      
2 N -0.406      
3 N -0.804      
4 H 0.353      
5 H 0.353      


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 -4.767 4.767
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.190 0.000 0.000
y 0.000 -14.349 0.000
z 0.000 0.000 -17.034
Traceless
 xyz
x -2.498 0.000 0.000
y 0.000 3.263 0.000
z 0.000 0.000 -0.765
Polar
3z2-r2-1.530
x2-y2-3.841
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.050 0.000 0.000
y 0.000 1.764 0.000
z 0.000 0.000 4.484


<r2> (average value of r2) Å2
<r2> 39.594
(<r2>)1/2 6.292