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

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-185.775370
Energy at 298.15K 
HF Energy-185.775370
Nuclear repulsion energy90.703609
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 BLYP/3-21G
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' 3114 3097 15.50 95.81 0.53 0.69
2 A' 2990 2973 20.76 95.04 0.16 0.28
3 A' 2149 2137 7.73 116.13 0.33 0.50
4 A' 1600 1591 16.03 14.82 0.27 0.42
5 A' 1497 1489 11.15 39.95 0.41 0.58
6 A' 1188 1181 4.38 5.73 0.72 0.84
7 A' 882 877 3.57 2.89 0.07 0.14
8 A' 592 588 2.40 3.29 0.42 0.59
9 A' 255 253 6.14 8.93 0.52 0.69
10 A" 1048 1042 29.66 0.01 0.75 0.86
11 A" 772 768 0.40 8.73 0.75 0.86
12 A" 389 387 4.66 1.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8237.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 8191.8 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 BLYP/3-21G
ABC
2.44110 0.16956 0.15855

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.114 -1.608 0.000
N2 -0.563 -0.501 0.000
C3 0.000 0.726 0.000
N4 0.355 1.859 0.000
H5 -0.441 -2.549 0.000
H6 1.212 -1.668 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.29832.33693.47551.09311.0996
N21.29831.34982.53212.05252.1252
C32.33691.34981.18743.30522.6840
N43.47552.53211.18744.47993.6302
H51.09312.05253.30524.47991.8736
H61.09962.12522.68403.63021.8736

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 123.881 N2 C1 H5 117.995
N2 C1 H6 124.608 N2 C3 N4 172.741
H5 C1 H6 117.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.094      
2 N -0.454      
3 C 0.526      
4 N -0.399      
5 H 0.220      
6 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.670 -3.896 0.000 3.953
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.392 -2.270 0.000
y -2.270 -23.539 0.000
z 0.000 0.000 -22.530
Traceless
 xyz
x -0.357 -2.270 0.000
y -2.270 -0.578 0.000
z 0.000 0.000 0.935
Polar
3z2-r21.870
x2-y20.147
xy-2.270
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.005 0.251 0.000
y 0.251 8.189 0.000
z 0.000 0.000 1.640


<r2> (average value of r2) Å2
<r2> 73.217
(<r2>)1/2 8.557