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

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-32.244697
Energy at 298.15K 
HF Energy-32.244697
Nuclear repulsion energy46.408610
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 B3LYP/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3214 3104 14.63 80.16 0.62 0.77
2 A' 3093 2987 27.89 88.26 0.18 0.30
3 A' 2288 2210 42.08 196.45 0.27 0.43
4 A' 1686 1628 29.19 61.55 0.22 0.36
5 A' 1495 1444 11.63 34.00 0.45 0.62
6 A' 1215 1173 7.33 5.81 0.75 0.86
7 A' 945 913 5.87 1.20 0.13 0.22
8 A' 613 592 2.06 3.49 0.32 0.48
9 A' 245 237 5.82 9.76 0.53 0.69
10 A" 1089 1052 31.10 1.74 0.75 0.86
11 A" 764 738 0.21 3.87 0.75 0.86
12 A" 363 350 6.07 0.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8504.6 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 8212.9 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 B3LYP/CEP-31G*
ABC
2.13252 0.17588 0.16248

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.101 -1.570 0.000
N2 -0.623 -0.497 0.000
C3 0.000 0.712 0.000
N4 0.424 1.818 0.000
H5 -0.420 -2.535 0.000
H6 1.204 -1.569 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.29492.28363.40351.09701.1028
N21.29491.35922.54062.04882.1185
C32.28361.35921.18523.27372.5786
N43.40352.54061.18524.43453.4757
H51.09702.04883.27374.43451.8897
H61.10282.11852.57863.47571.8897

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 118.706 N2 C1 H5 117.624
N2 C1 H6 123.954 N2 C3 N4 173.682
H5 C1 H6 118.422
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.411      
2 N 0.292      
3 C -0.666      
4 N 0.312      
5 H 0.260      
6 H 0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.642 -4.514 0.000 4.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.578 -2.732 0.000
y -2.732 -23.180 0.000
z 0.000 0.000 -22.753
Traceless
 xyz
x -0.612 -2.732 0.000
y -2.732 -0.014 0.000
z 0.000 0.000 0.626
Polar
3z2-r21.252
x2-y2-0.398
xy-2.732
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.551 0.337 0.000
y 0.337 8.409 0.000
z 0.000 0.000 2.492


<r2> (average value of r2) Å2
<r2> 57.513
(<r2>)1/2 7.584