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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: ROHF/6-31G

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/6-31G
 hartrees
Energy at 0K-93.348119
Energy at 298.15K-93.349483
HF Energy-93.348119
Nuclear repulsion energy27.895833
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/6-31G
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' 3564 3190 0.12      
2 A' 3282 2939 19.03      
3 A' 1563 1399 8.02      
4 A' 1201 1075 107.57      
5 A' 990 886 75.90      
6 A" 1041 932 10.69      

Unscaled Zero Point Vibrational Energy (zpe) 5820.4 cm-1
Scaled (by 0.8953) Zero Point Vibrational Energy (zpe) 5211.0 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 ROHF/6-31G
ABC
13.54851 1.25565 1.14915

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.109 0.651 0.000
N2 0.109 -0.601 0.000
H3 -0.651 1.416 0.000
H4 -0.760 -1.121 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.25191.07811.9731
N21.25192.15511.0119
H31.07812.15512.5389
H41.97311.01192.5389

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.921 H3 C1 N2 135.183
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.077      
2 N -0.567      
3 H 0.167      
4 H 0.324      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.580 0.966 0.000 2.755
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.180 1.378 0.000
y 1.378 -11.441 0.000
z 0.000 0.000 -12.698
Traceless
 xyz
x -0.110 1.378 0.000
y 1.378 0.997 0.000
z 0.000 0.000 -0.887
Polar
3z2-r2-1.774
x2-y2-0.739
xy1.378
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> 17.047
(<r2>)1/2 4.129

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at ROHF/6-31G
 hartrees
Energy at 0K-93.353900
Energy at 298.15K-93.355286
HF Energy-93.353900
Nuclear repulsion energy27.966942
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/6-31G
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' 3680 3295 3.62      
2 A' 3342 2992 8.29      
3 A' 1576 1411 2.87      
4 A' 1295 1159 23.19      
5 A' 1024 917 194.90      
6 A" 1090 976 123.30      

Unscaled Zero Point Vibrational Energy (zpe) 6003.5 cm-1
Scaled (by 0.8953) Zero Point Vibrational Energy (zpe) 5375.0 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 ROHF/6-31G
ABC
14.86628 1.25442 1.15681

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 0.656 0.000
N2 0.002 -0.595 0.000
H3 0.849 1.318 0.000
H4 -0.876 -1.089 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.25161.07461.9531
N21.25162.09221.0067
H31.07462.09222.9604
H41.95311.00672.9604

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.335 H3 C1 N2 128.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.050      
2 N -0.568      
3 H 0.183      
4 H 0.335      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.077 0.870 0.000 1.385
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.348 3.392 0.000
y 3.392 -11.578 0.000
z 0.000 0.000 -12.713
Traceless
 xyz
x 0.797 3.392 0.000
y 3.392 0.452 0.000
z 0.000 0.000 -1.249
Polar
3z2-r2-2.499
x2-y20.230
xy3.392
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> 16.894
(<r2>)1/2 4.110