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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: mPW1PW91/3-21G*

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 mPW1PW91/3-21G*
Rotational Constants (cm-1) from geometry optimized at mPW1PW91/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-147.919354
Energy at 298.15K-147.921608
HF Energy-147.919354
Nuclear repulsion energy59.243282
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 mPW1PW91/3-21G*
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 3593 3411 64.93      
2 A1 2354 2235 87.21      
3 A1 1685 1600 76.52      
4 A1 1137 1079 8.84      
5 B1 573 544 52.30      
6 B1 416 395 404.68      
7 B2 3702 3515 81.20      
8 B2 1186 1126 6.24      
9 B2 472 449 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 7558.4 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 7177.4 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 mPW1PW91/3-21G*
ABC
11.05559 0.33828 0.32824

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

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 1.388
N3 0.000 0.000 -1.110
H4 0.000 0.870 -1.624
H5 0.000 -0.870 -1.624

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17071.32652.03572.0357
N21.17072.49723.13443.1344
N31.32652.49721.01031.0103
H42.03573.13441.01031.7395
H52.03573.13441.01031.7395

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.587 C1 N3 H5 120.587
N2 C1 N3 180.000 H4 N3 H5 118.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.604      
2 N -0.461      
3 N -0.864      
4 H 0.361      
5 H 0.361      


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 -18.179 0.000 0.000
y 0.000 -14.390 0.000
z 0.000 0.000 -17.407
Traceless
 xyz
x -2.280 0.000 0.000
y 0.000 3.403 0.000
z 0.000 0.000 -1.122
Polar
3z2-r2-2.244
x2-y2-3.789
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.032 0.000 0.000
y 0.000 1.722 0.000
z 0.000 0.000 4.355


<r2> (average value of r2) Å2
<r2> 39.569
(<r2>)1/2 6.290