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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: PBEPBE/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-93.859546
Energy at 298.15K-93.860805
HF Energy-93.859546
Nuclear repulsion energy27.910199
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/aug-cc-pVDZ
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' 3176 3156 9.51      
2 A' 2887 2869 57.84      
3 A' 1801 1790 22.60      
4 A' 950 945 146.04      
5 A' 837 832 87.62      
6 A" 850 844 3.07      

Unscaled Zero Point Vibrational Energy (zpe) 5250.0 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 5218.0 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/aug-cc-pVDZ
ABC
12.62952 1.27643 1.15927

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.113 0.644 0.000
N2 0.113 -0.592 0.000
H3 -0.689 1.419 0.000
H4 -0.774 -1.137 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23551.11531.9889
N21.23552.16481.0406
H31.11532.16482.5571
H41.98891.04062.5571

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.579 H3 C1 N2 134.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.235      
2 N -0.066      
3 H -0.143      
4 H -0.027      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.085 0.282 0.000 2.104
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.623 0.530 0.000
y 0.530 -11.520 0.000
z 0.000 0.000 -12.995
Traceless
 xyz
x -0.366 0.530 0.000
y 0.530 1.289 0.000
z 0.000 0.000 -0.923
Polar
3z2-r2-1.846
x2-y2-1.103
xy0.530
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.300 0.166 -0.000
y 0.166 4.924 0.000
z -0.000 0.000 2.453


<r2> (average value of r2) Å2
<r2> 17.214
(<r2>)1/2 4.149

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-93.867217
Energy at 298.15K-93.868540
HF Energy-93.867217
Nuclear repulsion energy27.839143
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/aug-cc-pVDZ
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' 3324 3304 2.72      
2 A' 2944 2926 27.31      
3 A' 1747 1736 23.58      
4 A' 1145 1138 12.71      
5 A' 878 873 197.78      
6 A" 940 934 101.22      

Unscaled Zero Point Vibrational Energy (zpe) 5488.8 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 5455.4 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 PBEPBE/aug-cc-pVDZ
ABC
13.14051 1.26936 1.15755

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 0.656 0.000
N2 -0.001 -0.591 0.000
H3 0.922 1.279 0.000
H4 -0.911 -1.080 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.24641.11371.9601
N21.24642.08531.0336
H31.11372.08532.9879
H41.96011.03362.9879

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.262 H3 C1 N2 124.054
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.175      
2 N -0.020      
3 H -0.177      
4 H 0.022      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.381 0.056 0.000 0.385
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.734 3.246 0.000
y 3.246 -11.958 0.000
z 0.000 0.000 -13.052
Traceless
 xyz
x 0.771 3.246 0.000
y 3.246 0.435 0.000
z 0.000 0.000 -1.207
Polar
3z2-r2-2.414
x2-y20.224
xy3.246
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.334 0.221 0.000
y 0.221 4.649 0.000
z 0.000 0.000 2.512


<r2> (average value of r2) Å2
<r2> 17.156
(<r2>)1/2 4.142