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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: B1B95/6-311G*

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 B1B95/6-311G*
 hartrees
Energy at 0K-93.933587
Energy at 298.15K-93.934883
HF Energy-93.933587
Nuclear repulsion energy28.338283
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 B1B95/6-311G*
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' 3339 3201 5.45      
2 A' 2981 2857 60.29      
3 A' 1892 1814 29.27      
4 A' 1016 974 141.18      
5 A' 879 843 133.12      
6 A" 915 877 7.77      

Unscaled Zero Point Vibrational Energy (zpe) 5510.5 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 5282.4 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 B1B95/6-311G*
ABC
12.98567 1.31637 1.19521

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.635 0.000
N2 0.111 -0.582 0.000
H3 -0.686 1.391 0.000
H4 -0.757 -1.126 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21691.09891.9629
N21.21692.12801.0243
H31.09892.12802.5174
H41.96291.02432.5174

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 122.047 H3 C1 N2 133.469
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 N -0.441      
3 H 0.215      
4 H 0.312      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.325 0.292 0.000 2.343
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.051 0.632 0.000
y 0.632 -11.059 0.000
z 0.000 0.000 -12.594
Traceless
 xyz
x -0.224 0.632 0.000
y 0.632 1.264 0.000
z 0.000 0.000 -1.040
Polar
3z2-r2-2.079
x2-y2-0.992
xy0.632
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.101 0.085 0.000
y 0.085 3.933 0.000
z 0.000 0.000 1.385


<r2> (average value of r2) Å2
<r2> 16.629
(<r2>)1/2 4.078

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-93.941992
Energy at 298.15K-93.943342
HF Energy-93.941992
Nuclear repulsion energy28.254858
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 B1B95/6-311G*
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' 3469 3325 2.44      
2 A' 3038 2912 32.79      
3 A' 1834 1758 29.06      
4 A' 1225 1174 12.37      
5 A' 928 889 230.07      
6 A" 988 947 126.89      

Unscaled Zero Point Vibrational Energy (zpe) 5740.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 5502.5 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 B1B95/6-311G*
ABC
13.55037 1.30741 1.19236

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 0.647 0.000
N2 -0.001 -0.581 0.000
H3 0.910 1.257 0.000
H4 -0.895 -1.069 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22811.09671.9350
N21.22812.05171.0187
H31.09672.05172.9447
H41.93501.01872.9447

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.621 H3 C1 N2 123.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.120      
2 N -0.434      
3 H 0.228      
4 H 0.326      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.509 0.102 0.000 0.519
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.125 3.237 0.000
y 3.237 -11.445 0.000
z 0.000 0.000 -12.634
Traceless
 xyz
x 0.915 3.237 0.000
y 3.237 0.434 0.000
z 0.000 0.000 -1.349
Polar
3z2-r2-2.698
x2-y20.320
xy3.237
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.290 0.421 0.000
y 0.421 3.718 0.000
z 0.000 0.000 1.451


<r2> (average value of r2) Å2
<r2> 16.558
(<r2>)1/2 4.069