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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: B3PW91/6-311G*

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 B3PW91/6-311G*
 hartrees
Energy at 0K-93.941223
Energy at 298.15K-93.942520
HF Energy-93.941223
Nuclear repulsion energy28.255340
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 B3PW91/6-311G*
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' 3309 3185 7.49      
2 A' 2970 2859 63.49      
3 A' 1868 1799 27.86      
4 A' 1016 978 149.24      
5 A' 884 851 121.16      
6 A" 912 878 7.05      

Unscaled Zero Point Vibrational Energy (zpe) 5479.7 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 5275.3 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 B3PW91/6-311G*
ABC
12.92263 1.30842 1.18813

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.636 0.000
N2 0.111 -0.585 0.000
H3 -0.682 1.400 0.000
H4 -0.765 -1.121 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22081.10101.9635
N21.22082.13701.0272
H31.10102.13702.5222
H41.96351.02722.5222

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.484 H3 C1 N2 133.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 N -0.446      
3 H 0.218      
4 H 0.312      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.330 0.354 0.000 2.356
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.057 0.658 0.000
y 0.658 -11.090 0.000
z 0.000 0.000 -12.619
Traceless
 xyz
x -0.203 0.658 0.000
y 0.658 1.249 0.000
z 0.000 0.000 -1.046
Polar
3z2-r2-2.092
x2-y2-0.968
xy0.658
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.117 0.092 0.000
y 0.092 3.968 0.000
z 0.000 0.000 1.395


<r2> (average value of r2) Å2
<r2> 16.694
(<r2>)1/2 4.086

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-93.949457
Energy at 298.15K-93.950805
HF Energy-93.949457
Nuclear repulsion energy28.180932
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 B3PW91/6-311G*
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' 3443 3315 1.70      
2 A' 3027 2914 33.46      
3 A' 1815 1747 28.08      
4 A' 1222 1176 13.10      
5 A' 927 892 230.60      
6 A" 985 948 127.76      

Unscaled Zero Point Vibrational Energy (zpe) 5708.7 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 5495.7 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 B3PW91/6-311G*
ABC
13.52457 1.29981 1.18584

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 0.648 0.000
N2 -0.001 -0.583 0.000
H3 0.909 1.264 0.000
H4 -0.898 -1.070 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23151.09861.9387
N21.23152.05921.0211
H31.09862.05922.9522
H41.93871.02112.9522

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.479 H3 C1 N2 124.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.120      
2 N -0.438      
3 H 0.232      
4 H 0.326      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.520 0.138 0.000 0.538
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.138 3.264 0.000
y 3.264 -11.455 0.000
z 0.000 0.000 -12.658
Traceless
 xyz
x 0.918 3.264 0.000
y 3.264 0.443 0.000
z 0.000 0.000 -1.361
Polar
3z2-r2-2.722
x2-y20.317
xy3.264
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.302 0.407 0.000
y 0.407 3.760 0.000
z 0.000 0.000 1.464


<r2> (average value of r2) Å2
<r2> 16.618
(<r2>)1/2 4.077