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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-185.738926
Energy at 298.15K 
HF Energy-185.738926
Nuclear repulsion energy91.873971
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 B1B95/3-21G
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' 3236 3096 10.49 86.27 0.54 0.70
2 A' 3108 2973 12.78 85.48 0.15 0.26
3 A' 2308 2208 20.25 129.62 0.32 0.49
4 A' 1704 1631 31.31 29.77 0.27 0.42
5 A' 1552 1484 10.13 29.39 0.45 0.62
6 A' 1235 1181 4.71 5.23 0.74 0.85
7 A' 931 891 4.37 1.77 0.05 0.09
8 A' 615 588 3.93 2.93 0.46 0.63
9 A' 259 247 7.49 8.98 0.53 0.69
10 A" 1120 1072 32.04 0.06 0.75 0.86
11 A" 804 769 1.17 10.15 0.75 0.86
12 A" 411 393 6.65 1.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8640.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 8266.4 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 B1B95/3-21G
ABC
2.47454 0.17414 0.16269

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.096 -1.587 0.000
N2 -0.563 -0.491 0.000
C3 0.000 0.722 0.000
N4 0.377 1.828 0.000
H5 -0.459 -2.517 0.000
H6 1.184 -1.648 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27902.31153.42631.08301.0893
N21.27901.33822.50272.02842.0953
C32.31151.33821.16793.27182.6495
N43.42632.50271.16794.42453.5678
H51.08302.02843.27184.42451.8583
H61.08932.09532.64953.56781.8583

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 124.048 N2 C1 H5 118.128
N2 C1 H6 124.249 N2 C3 N4 173.955
H5 C1 H6 117.624
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.119      
2 N -0.519      
3 C 0.575      
4 N -0.423      
5 H 0.253      
6 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.767 -4.131 0.000 4.202
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.516 -2.499 0.000
y -2.499 -23.353 0.000
z 0.000 0.000 -22.559
Traceless
 xyz
x -0.560 -2.499 0.000
y -2.499 -0.316 0.000
z 0.000 0.000 0.876
Polar
3z2-r21.751
x2-y2-0.163
xy-2.499
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.918 0.265 0.000
y 0.265 7.733 0.000
z 0.000 0.000 1.608


<r2> (average value of r2) Å2
<r2> 71.711
(<r2>)1/2 8.468