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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-186.792860
Energy at 298.15K 
HF Energy-186.792860
Nuclear repulsion energy92.420699
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 B1B95/6-31+G**
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' 3241 3101 4.59 89.70 0.61 0.76
2 A' 3114 2979 14.72 95.51 0.14 0.25
3 A' 2346 2245 43.51 217.19 0.27 0.42
4 A' 1740 1665 34.07 63.81 0.20 0.33
5 A' 1512 1447 11.67 24.49 0.44 0.61
6 A' 1231 1178 9.52 4.36 0.74 0.85
7 A' 979 937 6.42 1.63 0.06 0.10
8 A' 623 596 3.20 3.42 0.27 0.42
9 A' 248 237 6.26 10.36 0.56 0.71
10 A" 1102 1055 22.18 0.58 0.75 0.86
11 A" 781 747 1.21 6.04 0.75 0.86
12 A" 371 355 8.13 0.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8644.4 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 8269.3 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 B1B95/6-31+G**
ABC
2.23856 0.18039 0.16694

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.094 -1.552 0.000
N2 -0.606 -0.487 0.000
C3 0.000 0.707 0.000
N4 0.417 1.793 0.000
H5 -0.431 -2.503 0.000
H6 1.185 -1.560 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27442.26093.36061.08591.0911
N21.27441.33912.49932.02262.0877
C32.26091.33911.16353.23812.5577
N43.36062.49931.16354.37833.4393
H51.08592.02263.23814.37831.8714
H61.09112.08772.55773.43931.8714

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 119.767 N2 C1 H5 117.726
N2 C1 H6 123.722 N2 C3 N4 174.121
H5 C1 H6 118.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 N -0.222      
3 C 0.370      
4 N -0.411      
5 H 0.175      
6 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.559 -4.519 0.000 4.554
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.968 -2.744 0.000
y -2.744 -23.829 0.000
z 0.000 0.000 -22.914
Traceless
 xyz
x -0.597 -2.744 0.000
y -2.744 -0.387 0.000
z 0.000 0.000 0.984
Polar
3z2-r21.968
x2-y2-0.139
xy-2.744
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.079 0.440 0.000
y 0.440 8.743 0.000
z 0.000 0.000 2.864


<r2> (average value of r2) Å2
<r2> 70.466
(<r2>)1/2 8.394