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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: PBEPBEultrafine/cc-pVTZ

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 PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-93.880024
Energy at 298.15K-93.881295
HF Energy-93.880024
Nuclear repulsion energy28.099957
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 PBEPBEultrafine/cc-pVTZ
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' 3179 3157 12.50      
2 A' 2878 2858 61.68      
3 A' 1814 1802 17.90      
4 A' 958 952 156.42      
5 A' 850 844 91.65      
6 A" 874 868 3.93      

Unscaled Zero Point Vibrational Energy (zpe) 5276.2 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 5239.8 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 PBEPBEultrafine/cc-pVTZ
ABC
12.90535 1.29250 1.17484

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.639 0.000
N2 0.111 -0.587 0.000
H3 -0.683 1.411 0.000
H4 -0.764 -1.140 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22621.10751.9834
N21.22622.14991.0359
H31.10752.14992.5524
H41.98341.03592.5524

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 122.300 H3 C1 N2 134.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.103      
2 N -0.142      
3 H 0.094      
4 H 0.152      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.055 0.198 0.000 2.064
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.305 0.517 0.000
y 0.517 -11.210 0.000
z 0.000 0.000 -12.707
Traceless
 xyz
x -0.346 0.517 0.000
y 0.517 1.296 0.000
z 0.000 0.000 -0.950
Polar
3z2-r2-1.900
x2-y2-1.095
xy0.517
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.638 0.103 0.000
y 0.103 4.368 0.000
z 0.000 0.000 1.840


<r2> (average value of r2) Å2
<r2> 16.907
(<r2>)1/2 4.112

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-93.887024
Energy at 298.15K-93.888353
HF Energy-93.887024
Nuclear repulsion energy28.018594
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 PBEPBEultrafine/cc-pVTZ
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' 3323 3300 2.01      
2 A' 2925 2905 33.47      
3 A' 1755 1743 19.37      
4 A' 1160 1152 11.23      
5 A' 888 882 204.26      
6 A" 950 943 102.63      

Unscaled Zero Point Vibrational Energy (zpe) 5500.7 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 5462.7 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 PBEPBEultrafine/cc-pVTZ
ABC
13.33913 1.28570 1.17267

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 0.652 0.000
N2 -0.001 -0.586 0.000
H3 0.915 1.271 0.000
H4 -0.905 -1.078 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23791.10581.9514
N21.23792.07101.0292
H31.10582.07102.9715
H41.95141.02922.9715

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.513 H3 C1 N2 124.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.138      
2 N -0.152      
3 H 0.116      
4 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.397 -0.008 0.000 0.397
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.405 3.069 0.000
y 3.069 -11.611 0.000
z 0.000 0.000 -12.743
Traceless
 xyz
x 0.773 3.069 0.000
y 3.069 0.463 0.000
z 0.000 0.000 -1.235
Polar
3z2-r2-2.471
x2-y20.207
xy3.069
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.767 0.455 0.000
y 0.455 4.044 0.000
z 0.000 0.000 1.884


<r2> (average value of r2) Å2
<r2> 16.832
(<r2>)1/2 4.103