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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: B3LYP/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS cis 2A'
1 2 yes CS trans 2A'

Conformer 1 (CS cis)

Jump to S1C2
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-16.622434
Energy at 298.15K-16.623670
HF Energy-16.622434
Nuclear repulsion energy15.319545
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
4/u)
Dep P Dep U
1 A' 3322 3217 4.82      
2 A' 2970 2876 70.21      
3 A' 1784 1728 25.85      
4 A' 961 931 72.48      
5 A' 756 732 255.37      
6 A" 886 858 7.71      

Unscaled Zero Point Vibrational Energy (zpe) 5338.9 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 5170.2 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
14.04422 1.21903 1.12167

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 0.107 0.660 0.000
N2 0.107 -0.594 0.000
H3 -0.686 1.441 0.000
H4 -0.704 -1.242 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.25481.11262.0677
N21.25482.18461.0375
H31.11262.18462.6832
H42.06771.03752.6832

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 128.606 H3 C1 N2 134.587
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 -0.372      
2 N -0.074      
3 H 0.187      
4 H 0.259      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.836 0.260 0.000 2.848
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.488 0.535 0.000
y 0.535 -10.780 0.000
z 0.000 0.000 -12.713
Traceless
 xyz
x -0.741 0.535 0.000
y 0.535 1.821 0.000
z 0.000 0.000 -1.079
Polar
3z2-r2-2.158
x2-y2-1.708
xy0.535
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.707 0.254 0.000
y 0.254 4.201 0.000
z 0.000 0.000 1.358


<r2> (average value of r2) Å2
<r2> 15.690
(<r2>)1/2 3.961

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-16.633115
Energy at 298.15K-16.634445
HF Energy-16.633115
Nuclear repulsion energy15.289741
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
4/u)
Dep P Dep U
1 A' 3452 3343 1.48      
2 A' 3063 2967 36.07      
3 A' 1705 1652 26.00      
4 A' 1177 1140 10.68      
5 A' 887 859 277.27      
6 A" 979 948 166.24      

Unscaled Zero Point Vibrational Energy (zpe) 5631.7 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 5453.8 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 B3LYP/CEP-31G
ABC
13.81008 1.21850 1.11971

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 -0.002 0.672 0.000
N2 -0.002 -0.598 0.000
H3 0.911 1.299 0.000
H4 -0.881 -1.140 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.27011.10782.0135
N21.27012.10561.0323
H31.10782.10563.0263
H42.01351.03233.0263

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.636 H3 C1 N2 124.485
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 -0.379      
2 N -0.083      
3 H 0.193      
4 H 0.270      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.458 0.134 0.000 0.477
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.363 3.868 0.000
y 3.868 -11.494 0.000
z 0.000 0.000 -12.808
Traceless
 xyz
x 0.788 3.868 0.000
y 3.868 0.591 0.000
z 0.000 0.000 -1.379
Polar
3z2-r2-2.759
x2-y20.131
xy3.868
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.075 0.246 0.000
y 0.246 4.009 0.000
z 0.000 0.000 1.437


<r2> (average value of r2) Å2
<r2> 15.612
(<r2>)1/2 3.951