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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: PBE1PBE/6-31G(2df,p)

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 PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-93.851139
Energy at 298.15K-93.852432
HF Energy-93.851139
Nuclear repulsion energy28.247415
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 PBE1PBE/6-31G(2df,p)
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' 3369 3224 3.26      
2 A' 3011 2882 44.23      
3 A' 1883 1802 26.28      
4 A' 1019 975 131.06      
5 A' 857 820 118.15      
6 A" 917 878 4.85      

Unscaled Zero Point Vibrational Energy (zpe) 5527.8 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 5290.1 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 PBE1PBE/6-31G(2df,p)
ABC
12.96741 1.30651 1.18693

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.635 0.000
N2 0.111 -0.587 0.000
H3 -0.673 1.407 0.000
H4 -0.771 -1.110 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22221.09991.9553
N21.22222.14241.0251
H31.09992.14242.5190
H41.95531.02512.5190

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.679 H3 C1 N2 134.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.136      
2 N -0.308      
3 H 0.169      
4 H 0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.043 0.391 0.000 2.080
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.781 0.654 0.000
y 0.654 -10.805 0.000
z 0.000 0.000 -12.373
Traceless
 xyz
x -0.192 0.654 0.000
y 0.654 1.272 0.000
z 0.000 0.000 -1.081
Polar
3z2-r2-2.161
x2-y2-0.976
xy0.654
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.134 0.054 0.000
y 0.054 3.798 0.000
z 0.000 0.000 1.519


<r2> (average value of r2) Å2
<r2> 16.530
(<r2>)1/2 4.066

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-93.858517
Energy at 298.15K-93.859860
HF Energy-93.858517
Nuclear repulsion energy28.178579
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 PBE1PBE/6-31G(2df,p)
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' 3484 3334 6.91      
2 A' 3051 2920 27.00      
3 A' 1834 1756 27.23      
4 A' 1201 1150 8.33      
5 A' 906 867 219.28      
6 A" 987 945 98.27      

Unscaled Zero Point Vibrational Energy (zpe) 5731.6 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 5485.1 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 PBE1PBE/6-31G(2df,p)
ABC
13.53357 1.29919 1.18540

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 0.647 0.000
N2 -0.000 -0.585 0.000
H3 0.904 1.272 0.000
H4 -0.902 -1.062 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23181.09941.9323
N21.23182.06521.0202
H31.09942.06522.9511
H41.93231.02022.9511

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.897 H3 C1 N2 124.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.163      
2 N -0.299      
3 H 0.177      
4 H 0.286      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.490 0.177 0.000 0.521
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.983 2.970 0.000
y 2.970 -11.202 0.000
z 0.000 0.000 -12.410
Traceless
 xyz
x 0.823 2.970 0.000
y 2.970 0.495 0.000
z 0.000 0.000 -1.318
Polar
3z2-r2-2.636
x2-y20.219
xy2.970
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.321 0.506 0.000
y 0.506 3.640 0.000
z 0.000 0.000 1.558


<r2> (average value of r2) Å2
<r2> 16.485
(<r2>)1/2 4.060