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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
1 2 no C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-148.668174
Energy at 298.15K-148.670421
Nuclear repulsion energy59.036337
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 PBEPBE/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3461 3437 30.06      
2 A' 2278 2262 89.67      
3 A' 1578 1567 37.94      
4 A' 1073 1066 8.12      
5 A' 575 571 177.03      
6 A' 483 480 40.64      
7 A" 3548 3524 51.40      
8 A" 1160 1152 0.03      
9 A" 399 396 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 7277.3 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 7227.1 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 PBEPBE/cc-pVTZ
ABC
10.12378 0.33599 0.32804

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.218 0.000
N2 0.001 1.387 0.000
N3 0.077 -1.125 0.000
H4 -0.274 -1.569 0.846
H5 -0.274 -1.569 -0.846

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16871.34501.99611.9961
N21.16872.51263.08693.0869
N31.34502.51261.01761.0176
H41.99613.08691.01761.6911
H51.99613.08691.01761.6911

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 114.614 C1 N3 H5 114.614
N2 C1 N3 176.660 H4 N3 H5 112.395
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.075      
2 N -0.100      
3 N -0.172      
4 H 0.174      
5 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.009 -4.451 0.000 4.564
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.338 1.863 0.000
y 1.863 -18.434 0.000
z 0.000 0.000 -15.163
Traceless
 xyz
x -1.539 1.863 0.000
y 1.863 -1.683 0.000
z 0.000 0.000 3.223
Polar
3z2-r26.446
x2-y20.096
xy1.863
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.418 0.056 0.000
y 0.056 5.404 0.000
z 0.000 0.000 2.713


<r2> (average value of r2) Å2
<r2> 39.961
(<r2>)1/2 6.321

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-148.666781
Energy at 298.15K 
HF Energy-148.666781
Nuclear repulsion energy59.194564
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 PBEPBE/cc-pVTZ
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 3537 3513 53.92      
2 A1 2281 2265 115.38      
3 A1 1561 1550 46.02      
4 A1 1107 1099 11.82      
5 B1 511 507 0.05      
6 B1 425i 422i 227.36      
7 B2 3647 3622 82.40      
8 B2 1097 1090 1.85      
9 B2 396 393 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 6854.9 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 6807.6 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 PBEPBE/cc-pVTZ
ABC
11.04193 0.33759 0.32757

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

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 1.388
N3 0.000 0.000 -1.111
H4 0.000 0.870 -1.625
H5 0.000 -0.870 -1.625

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17021.32952.03832.0383
N21.17022.49983.13653.1365
N31.32952.49981.01051.0105
H42.03833.13651.01051.7406
H52.03833.13651.01051.7406

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.546 C1 N3 H5 120.546
N2 C1 N3 180.000 H4 N3 H5 118.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.068      
2 N -0.114      
3 N -0.182      
4 H 0.182      
5 H 0.182      


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 -4.832 4.832
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.658 0.000 0.000
y 0.000 -14.905 0.000
z 0.000 0.000 -17.640
Traceless
 xyz
x -2.385 0.000 0.000
y 0.000 3.244 0.000
z 0.000 0.000 -0.859
Polar
3z2-r2-1.718
x2-y2-3.753
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.346 0.000 0.000
y 0.000 2.658 0.000
z 0.000 0.000 5.413


<r2> (average value of r2) Å2
<r2> 39.881
(<r2>)1/2 6.315