return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NH2CN (cyanamide)

using model chemistry: HSEh1PBE/6-31G**

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 HSEh1PBE/6-31G**
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/6-31G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HSEh1PBE/6-31G**
 hartrees
Energy at 0K-148.626015
Energy at 298.15K 
HF Energy-148.626015
Nuclear repulsion energy59.421936
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 HSEh1PBE/6-31G**
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 3672 3504 72.52      
2 A1 2399 2289 125.94      
3 A1 1623 1549 58.54      
4 A1 1156 1103 9.52      
5 B1 531 507 1.26      
6 B1 401i 383i 324.69      
7 B2 3797 3624 100.94      
8 B2 1136 1084 5.01      
9 B2 413 394 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 7162.7 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 6835.3 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 HSEh1PBE/6-31G**
ABC
11.14606 0.33996 0.32990

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.218
N2 0.000 0.000 1.383
N3 0.000 0.000 -1.108
H4 0.000 0.866 -1.616
H5 0.000 -0.866 -1.616

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16551.32612.02842.0284
N21.16552.49163.12223.1222
N31.32612.49161.00421.0042
H42.02843.12221.00421.7324
H52.02843.12221.00421.7324

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.392 C1 N3 H5 120.392
N2 C1 N3 180.000 H4 N3 H5 119.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.510      
2 N -0.454      
3 N -0.706      
4 H 0.325      
5 H 0.325      


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 -4.804 4.804
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.281 0.000 0.000
y 0.000 -14.424 0.000
z 0.000 0.000 -17.220
Traceless
 xyz
x -2.459 0.000 0.000
y 0.000 3.327 0.000
z 0.000 0.000 -0.867
Polar
3z2-r2-1.735
x2-y2-3.857
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.518 0.000 0.000
y 0.000 2.051 0.000
z 0.000 0.000 4.828


<r2> (average value of r2) Å2
<r2> 39.398
(<r2>)1/2 6.277