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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: ROHF/6-311G*

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 ROHF/6-311G*
 hartrees
Energy at 0K-93.414380
Energy at 298.15K-93.415759
HF Energy-93.414380
Nuclear repulsion energy28.330178
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 ROHF/6-311G*
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' 3590 3072 1.32      
2 A' 3208 2744 32.94      
3 A' 1675 1433 2.13      
4 A' 1256 1075 121.54      
5 A' 1008 862 43.52      
6 A" 1061 907 7.31      

Unscaled Zero Point Vibrational Energy (zpe) 5898.4 cm-1
Scaled (by 0.8556) Zero Point Vibrational Energy (zpe) 5046.7 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 ROHF/6-311G*
ABC
12.44418 1.32218 1.19520

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.113 0.634 0.000
N2 0.113 -0.594 0.000
H3 -0.672 1.382 0.000
H4 -0.800 -1.025 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22821.08461.8935
N21.22822.12681.0096
H31.08462.12682.4104
H41.89351.00962.4104

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 115.238 H3 C1 N2 133.625
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.031      
2 N -0.511      
3 H 0.222      
4 H 0.320      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.328 0.981 0.000 2.526
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.866 1.013 0.000
y 1.013 -11.527 0.000
z 0.000 0.000 -12.769
Traceless
 xyz
x 0.281 1.013 0.000
y 1.013 0.791 0.000
z 0.000 0.000 -1.072
Polar
3z2-r2-2.144
x2-y2-0.340
xy1.013
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 16.631
(<r2>)1/2 4.078

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at ROHF/6-311G*
 hartrees
Energy at 0K-93.420371
Energy at 298.15K-93.421764
HF Energy-93.420371
Nuclear repulsion energy28.367738
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 ROHF/6-311G*
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' 3690 3157 3.11      
2 A' 3252 2782 20.25      
3 A' 1715 1468 17.70      
4 A' 1329 1137 19.53      
5 A' 1031 882 179.46      
6 A" 1095 937 108.99      

Unscaled Zero Point Vibrational Energy (zpe) 6055.8 cm-1
Scaled (by 0.8556) Zero Point Vibrational Energy (zpe) 5181.3 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 ROHF/6-311G*
ABC
13.85297 1.31238 1.19881

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.003 0.640 0.000
N2 0.003 -0.588 0.000
H3 0.868 1.290 0.000
H4 -0.909 -1.012 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22841.08221.8865
N21.22842.06841.0051
H31.08222.06842.9079
H41.88651.00512.9079

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 114.896 H3 C1 N2 126.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.058      
2 N -0.514      
3 H 0.241      
4 H 0.331      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.820 0.827 0.000 1.164
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.129 3.139 0.000
y 3.139 -11.603 0.000
z 0.000 0.000 -12.788
Traceless
 xyz
x 1.066 3.139 0.000
y 3.139 0.356 0.000
z 0.000 0.000 -1.422
Polar
3z2-r2-2.843
x2-y20.473
xy3.139
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 16.544
(<r2>)1/2 4.067