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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-93.392963
Energy at 298.15K-93.394340
HF Energy-93.392963
Nuclear repulsion energy28.231203
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 HF/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' 3583 3220 2.51      
2 A' 3249 2919 33.03      
3 A' 1666 1497 0.67      
4 A' 1266 1137 116.70      
5 A' 1013 910 45.48      
6 A" 1063 955 8.56      

Unscaled Zero Point Vibrational Energy (zpe) 5920.1 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 5319.2 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 HF/6-31G*
ABC
12.45210 1.31094 1.18607

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 0.633 0.000
N2 0.112 -0.593 0.000
H3 -0.665 1.390 0.000
H4 -0.790 -1.042 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22601.08451.9028
N21.22602.12941.0080
H31.08452.12942.4351
H41.90281.00802.4351

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.471 H3 C1 N2 134.238
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.040      
2 N -0.569      
3 H 0.178      
4 H 0.351      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.254 1.024 0.000 2.476
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.774 1.115 0.000
y 1.115 -11.425 0.000
z 0.000 0.000 -12.609
Traceless
 xyz
x 0.243 1.115 0.000
y 1.115 0.767 0.000
z 0.000 0.000 -1.010
Polar
3z2-r2-2.019
x2-y2-0.349
xy1.115
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.825 -0.027 0.000
y -0.027 3.500 0.000
z 0.000 0.000 1.151


<r2> (average value of r2) Å2
<r2> 16.621
(<r2>)1/2 4.077

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-93.398748
Energy at 298.15K-93.400140
HF Energy-93.398748
Nuclear repulsion energy28.277958
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 HF/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' 3678 3305 3.75      
2 A' 3294 2960 20.15      
3 A' 1704 1531 10.87      
4 A' 1332 1197 19.30      
5 A' 1033 928 169.61      
6 A" 1100 988 98.79      

Unscaled Zero Point Vibrational Energy (zpe) 6070.4 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 5454.2 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 HF/6-31G*
ABC
13.76777 1.30372 1.19094

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.003 0.641 0.000
N2 0.003 -0.589 0.000
H3 0.874 1.281 0.000
H4 -0.911 -1.006 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23011.08061.8834
N21.23012.06271.0042
H31.08062.06272.9006
H41.88341.00422.9006

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 114.530 H3 C1 N2 126.295
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.012      
2 N -0.568      
3 H 0.195      
4 H 0.361      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.885 0.890 0.000 1.255
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.058 3.001 0.000
y 3.001 -11.512 0.000
z 0.000 0.000 -12.620
Traceless
 xyz
x 1.008 3.001 0.000
y 3.001 0.327 0.000
z 0.000 0.000 -1.335
Polar
3z2-r2-2.670
x2-y20.454
xy3.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.006 0.566 0.000
y 0.566 3.416 0.000
z 0.000 0.000 1.149


<r2> (average value of r2) Å2
<r2> 16.527
(<r2>)1/2 4.065