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/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-148.738678
Energy at 298.15K-148.740991
Nuclear repulsion energy59.190710
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/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' 3548 3410 36.82      
2 A' 2389 2296 95.20      
3 A' 1604 1542 35.41      
4 A' 1107 1064 6.44      
5 A' 648 622 192.41      
6 A' 492 473 30.04      
7 A" 3643 3502 57.43      
8 A" 1199 1152 0.01      
9 A" 413 397 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 7520.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 7228.7 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/cc-pVDZ
ABC
9.97833 0.33780 0.33024

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.217 0.000
N2 -0.031 1.381 0.000
N3 0.108 -1.123 0.000
H4 -0.271 -1.555 0.838
H5 -0.271 -1.555 -0.838

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16411.34481.97921.9792
N21.16412.50803.06283.0628
N31.34482.50801.01631.0163
H41.97923.06281.01631.6761
H51.97923.06281.01631.6761

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 113.176 C1 N3 H5 113.176
N2 C1 N3 176.895 H4 N3 H5 111.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 N -0.153      
3 N -0.135      
4 H 0.142      
5 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.071 -4.271 0.000 4.404
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.842 2.058 0.000
y 2.058 -17.956 0.000
z 0.000 0.000 -14.894
Traceless
 xyz
x -1.417 2.058 0.000
y 2.058 -1.588 0.000
z 0.000 0.000 3.005
Polar
3z2-r26.010
x2-y20.114
xy2.058
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.775 0.025 0.000
y 0.025 4.744 0.000
z 0.000 0.000 2.184


<r2> (average value of r2) Å2
<r2> 39.495
(<r2>)1/2 6.284

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-148.733778
Energy at 298.15K 
HF Energy-148.733778
Nuclear repulsion energy59.427151
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/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 3643 3502 70.57      
2 A1 2401 2308 129.62      
3 A1 1576 1515 46.15      
4 A1 1153 1108 9.67      
5 B1 532 511 0.15      
6 B1 473i 455i 257.69      
7 B2 3774 3628 105.33      
8 B2 1120 1077 2.19      
9 B2 408 392 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 7066.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 6792.6 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 B1B95/cc-pVDZ
ABC
11.06416 0.34033 0.33017

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/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 1.382
N3 0.000 0.000 -1.108
H4 0.000 0.869 -1.616
H5 0.000 -0.869 -1.616

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16431.32582.02992.0299
N21.16432.49013.12213.1221
N31.32582.49011.00721.0072
H42.02993.12211.00721.7388
H52.02993.12211.00721.7388

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.322 C1 N3 H5 120.322
N2 C1 N3 180.000 H4 N3 H5 119.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.026      
2 N -0.164      
3 N -0.149      
4 H 0.144      
5 H 0.144      


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 -4.711 4.711
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.122 0.000 0.000
y 0.000 -14.562 0.000
z 0.000 0.000 -17.087
Traceless
 xyz
x -2.297 0.000 0.000
y 0.000 3.042 0.000
z 0.000 0.000 -0.745
Polar
3z2-r2-1.491
x2-y2-3.559
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.659 0.000 0.000
y 0.000 2.131 0.000
z 0.000 0.000 4.745


<r2> (average value of r2) Å2
<r2> 39.350
(<r2>)1/2 6.273