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: B1B95/6-31G

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 B1B95/6-31G
Rotational Constants (cm-1) from geometry optimized at B1B95/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-148.674166
Energy at 298.15K-148.676365
HF Energy-148.674166
Nuclear repulsion energy59.162934
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 B1B95/6-31G
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 3670 3501 66.61      
2 A1 2355 2246 120.88      
3 A1 1693 1614 78.18      
4 A1 1146 1093 8.06      
5 B1 530 506 306.44      
6 B1 457 436 186.66      
7 B2 3796 3620 77.59      
8 B2 1187 1132 7.73      
9 B2 400 382 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 7616.5 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 7263.8 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 B1B95/6-31G
ABC
11.24576 0.33650 0.32672

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.217
N2 0.000 0.000 1.391
N3 0.000 0.000 -1.113
H4 0.000 0.862 -1.626
H5 0.000 -0.862 -1.626

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17471.32962.03432.0343
N21.17472.50433.13803.1380
N31.32962.50431.00341.0034
H42.03433.13801.00341.7248
H52.03433.13801.00341.7248

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.744 C1 N3 H5 120.744
N2 C1 N3 180.000 H4 N3 H5 118.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.277      
2 N -0.232      
3 N -0.795      
4 H 0.375      
5 H 0.375      


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 -4.773 4.773
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.462 0.000 0.000
y 0.000 -14.505 0.000
z 0.000 0.000 -17.787
Traceless
 xyz
x -2.316 0.000 0.000
y 0.000 3.620 0.000
z 0.000 0.000 -1.303
Polar
3z2-r2-2.607
x2-y2-3.957
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.259 0.000 0.000
y 0.000 1.872 0.000
z 0.000 0.000 4.809


<r2> (average value of r2) Å2
<r2> 39.844
(<r2>)1/2 6.312