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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: B1B95/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 B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-93.930133
Energy at 298.15K-93.931418
HF Energy-93.930133
Nuclear repulsion energy28.204703
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/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' 3356 3214 1.35      
2 A' 2992 2866 43.46      
3 A' 1875 1796 35.06      
4 A' 1000 957 136.94      
5 A' 854 818 108.22      
6 A" 890 853 3.80      

Unscaled Zero Point Vibrational Energy (zpe) 5482.8 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 5252.0 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 B1B95/aug-cc-pVDZ
ABC
12.81511 1.30446 1.18395

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 0.637 0.000
N2 0.112 -0.586 0.000
H3 -0.687 1.400 0.000
H4 -0.766 -1.119 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22361.10431.9631
N21.22362.14101.0268
H31.10432.14102.5201
H41.96311.02682.5201

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.220 H3 C1 N2 133.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.259      
2 N -0.078      
3 H -0.158      
4 H -0.023      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.150 0.364 0.000 2.180
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.385 0.583 0.000
y 0.583 -11.299 0.000
z 0.000 0.000 -12.861
Traceless
 xyz
x -0.305 0.583 0.000
y 0.583 1.324 0.000
z 0.000 0.000 -1.020
Polar
3z2-r2-2.039
x2-y2-1.086
xy0.583
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.043 0.121 0.000
y 0.121 4.555 0.000
z 0.000 0.000 2.358


<r2> (average value of r2) Å2
<r2> 16.884
(<r2>)1/2 4.109

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-93.937983
Energy at 298.15K-93.939321
HF Energy-93.937983
Nuclear repulsion energy28.138666
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/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' 3473 3327 10.23      
2 A' 3049 2921 21.62      
3 A' 1827 1750 33.90      
4 A' 1176 1127 12.27      
5 A' 898 860 216.25      
6 A" 968 927 107.10      

Unscaled Zero Point Vibrational Energy (zpe) 5695.5 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 5455.7 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 B1B95/aug-cc-pVDZ
ABC
13.59806 1.29416 1.18169

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 0.648 0.000
N2 -0.000 -0.585 0.000
H3 0.905 1.277 0.000
H4 -0.899 -1.071 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23271.10271.9398
N21.23272.07041.0217
H31.10272.07042.9613
H41.93981.02172.9613

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.431 H3 C1 N2 124.780
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.198      
2 N -0.036      
3 H -0.187      
4 H 0.025      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.411 0.165 0.000 0.443
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.552 3.256 0.000
y 3.256 -11.690 0.000
z 0.000 0.000 -12.914
Traceless
 xyz
x 0.750 3.256 0.000
y 3.256 0.543 0.000
z 0.000 0.000 -1.293
Polar
3z2-r2-2.586
x2-y20.138
xy3.256
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.113 0.195 0.000
y 0.195 4.414 0.000
z 0.000 0.000 2.409


<r2> (average value of r2) Å2
<r2> 16.846
(<r2>)1/2 4.104