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: B3PW91/cc-pVDZ

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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-148.735026
Energy at 298.15K-148.737334
Nuclear repulsion energy59.096918
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 B3PW91/cc-pVDZ
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' 3535 3412 36.44      
2 A' 2373 2290 94.58      
3 A' 1605 1549 35.95      
4 A' 1104 1065 6.26      
5 A' 641 619 194.60      
6 A' 491 474 30.52      
7 A" 3631 3504 58.39      
8 A" 1199 1157 0.01      
9 A" 411 397 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 7494.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 7232.4 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 B3PW91/cc-pVDZ
ABC
9.96577 0.33676 0.32917

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.217 0.000
N2 -0.027 1.384 0.000
N3 0.105 -1.125 0.000
H4 -0.272 -1.559 0.840
H5 -0.272 -1.559 -0.840

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16641.34621.98351.9835
N21.16642.51163.06953.0695
N31.34622.51161.01791.0179
H41.98353.06951.01791.6805
H51.98353.06951.01791.6805

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 113.343 C1 N3 H5 113.343
N2 C1 N3 176.867 H4 N3 H5 111.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.019      
2 N -0.166      
3 N -0.149      
4 H 0.148      
5 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.077 -4.316 0.000 4.449
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.873 2.053 0.000
y 2.053 -17.987 0.000
z 0.000 0.000 -14.895
Traceless
 xyz
x -1.432 2.053 0.000
y 2.053 -1.602 0.000
z 0.000 0.000 3.035
Polar
3z2-r26.070
x2-y20.113
xy2.053
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.780 0.028 0.000
y 0.028 4.773 0.000
z 0.000 0.000 2.187


<r2> (average value of r2) Å2
<r2> 39.604
(<r2>)1/2 6.293

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-148.732967
Energy at 298.15K 
HF Energy-148.732967
Nuclear repulsion energy59.268791
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 B3PW91/cc-pVDZ
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 3617 3490 67.12      
2 A1 2374 2291 125.05      
3 A1 1572 1517 45.57      
4 A1 1144 1104 9.40      
5 B1 526 508 0.07      
6 B1 469i 453i 257.75      
7 B2 3746 3615 103.01      
8 B2 1117 1078 2.14      
9 B2 404 390 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 7015.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 6769.8 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 B3PW91/cc-pVDZ
ABC
11.01226 0.33855 0.32845

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

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 1.386
N3 0.000 0.000 -1.110
H4 0.000 0.871 -1.621
H5 0.000 -0.871 -1.621

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16811.32852.03492.0349
N21.16812.49663.13073.1307
N31.32852.49661.00991.0099
H42.03493.13071.00991.7429
H52.03493.13071.00991.7429

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.355 C1 N3 H5 120.355
N2 C1 N3 180.000 H4 N3 H5 119.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.035      
2 N -0.174      
3 N -0.159      
4 H 0.149      
5 H 0.149      


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 -4.745 4.745
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.156 0.000 0.000
y 0.000 -14.575 0.000
z 0.000 0.000 -17.105
Traceless
 xyz
x -2.315 0.000 0.000
y 0.000 3.055 0.000
z 0.000 0.000 -0.740
Polar
3z2-r2-1.480
x2-y2-3.580
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.669 0.000 0.000
y 0.000 2.141 0.000
z 0.000 0.000 4.794


<r2> (average value of r2) Å2
<r2> 39.516
(<r2>)1/2 6.286