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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: PBEPBE/6-31G*

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 PBEPBE/6-31G*
 hartrees
Energy at 0K-93.838392
Energy at 298.15K-93.839660
HF Energy-93.838392
Nuclear repulsion energy27.929290
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 PBEPBE/6-31G*
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' 3153 3108 16.40      
2 A' 2897 2855 71.81      
3 A' 1827 1801 18.82      
4 A' 974 960 132.99      
5 A' 866 853 113.91      
6 A" 868 855 5.83      

Unscaled Zero Point Vibrational Energy (zpe) 5291.9 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 5216.2 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 PBEPBE/6-31G*
ABC
12.68647 1.27765 1.16075

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 0.643 0.000
N2 0.112 -0.592 0.000
H3 -0.685 1.418 0.000
H4 -0.775 -1.136 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23491.11161.9885
N21.23492.16211.0411
H31.11162.16212.5562
H41.98851.04112.5562

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.549 H3 C1 N2 134.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.020      
2 N -0.449      
3 H 0.159      
4 H 0.310      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.147 0.274 0.000 2.165
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.937 0.666 0.000
y 0.666 -10.968 0.000
z 0.000 0.000 -12.407
Traceless
 xyz
x -0.249 0.666 0.000
y 0.666 1.204 0.000
z 0.000 0.000 -0.955
Polar
3z2-r2-1.909
x2-y2-0.969
xy0.666
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.011 0.073 0.000
y 0.073 3.965 0.000
z 0.000 0.000 1.198


<r2> (average value of r2) Å2
<r2> 16.820
(<r2>)1/2 4.101

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-93.846774
Energy at 298.15K-93.848107
HF Energy-93.846774
Nuclear repulsion energy27.847003
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 PBEPBE/6-31G*
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' 3307 3260 1.37      
2 A' 2955 2913 39.94      
3 A' 1764 1739 17.96      
4 A' 1198 1181 10.88      
5 A' 908 895 199.07      
6 A" 961 947 104.77      

Unscaled Zero Point Vibrational Energy (zpe) 5546.5 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 5467.2 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 PBEPBE/6-31G*
ABC
12.87557 1.27417 1.15944

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 0.657 0.000
N2 -0.001 -0.591 0.000
H3 0.930 1.261 0.000
H4 -0.917 -1.070 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.24761.10961.9552
N21.24762.07251.0340
H31.10962.07252.9743
H41.95521.03402.9743

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.641 H3 C1 N2 122.983
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.058      
2 N -0.440      
3 H 0.171      
4 H 0.327      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.521 0.053 0.000 0.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.026 3.015 0.000
y 3.015 -11.431 0.000
z 0.000 0.000 -12.445
Traceless
 xyz
x 0.912 3.015 0.000
y 3.015 0.304 0.000
z 0.000 0.000 -1.216
Polar
3z2-r2-2.432
x2-y20.405
xy3.015
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.254 0.587 0.000
y 0.587 3.670 0.000
z 0.000 0.000 1.241


<r2> (average value of r2) Å2
<r2> 16.740
(<r2>)1/2 4.091