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All results from a given calculation for H2CNCN (cyanamide, methylene)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-186.805442
Energy at 298.15K 
HF Energy-186.805442
Nuclear repulsion energy92.353795
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 mPW1PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3252 3084 7.41 83.58 0.58 0.74
2 A' 3132 2970 15.21 87.92 0.14 0.24
3 A' 2352 2231 32.54 159.19 0.31 0.48
4 A' 1747 1656 35.07 42.65 0.26 0.41
5 A' 1529 1450 10.71 26.80 0.43 0.60
6 A' 1243 1179 8.75 5.02 0.75 0.86
7 A' 981 931 5.71 1.07 0.04 0.07
8 A' 626 594 4.39 2.97 0.33 0.50
9 A' 248 235 6.04 8.91 0.53 0.70
10 A" 1101 1044 20.70 0.10 0.75 0.86
11 A" 784 744 1.41 8.28 0.75 0.86
12 A" 372 353 9.57 0.85 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8684.0 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 8235.1 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 mPW1PW91/6-31G*
ABC
2.23170 0.18017 0.16671

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.092 -1.553 0.000
N2 -0.607 -0.487 0.000
C3 0.000 0.707 0.000
N4 0.421 1.793 0.000
H5 -0.433 -2.504 0.000
H6 1.185 -1.567 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27492.26213.36201.08731.0921
N21.27491.34002.50132.02482.0921
C32.26211.34001.16443.24092.5645
N43.36202.50131.16444.38163.4459
H51.08732.02483.24094.38161.8699
H61.09212.09212.56453.44591.8699

picture of cyanamide, methylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 119.761 N2 C1 H5 117.779
N2 C1 H6 124.040 N2 C3 N4 174.234
H5 C1 H6 118.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.132      
2 N -0.368      
3 C 0.535      
4 N -0.455      
5 H 0.214      
6 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.535 -4.372 0.000 4.404
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.317 -2.628 0.000
y -2.628 -23.174 0.000
z 0.000 0.000 -22.399
Traceless
 xyz
x -0.530 -2.628 0.000
y -2.628 -0.317 0.000
z 0.000 0.000 0.846
Polar
3z2-r21.693
x2-y2-0.142
xy-2.628
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.433 0.375 0.000
y 0.375 7.977 0.000
z 0.000 0.000 2.039


<r2> (average value of r2) Å2
<r2> 70.172
(<r2>)1/2 8.377