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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: B3LYP/aug-cc-pVQZ

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 B3LYP/aug-cc-pVQZ
 hartrees
Energy at 0K-94.008857
Energy at 298.15K-94.010148
HF Energy-94.008857
Nuclear repulsion energy28.339565
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 B3LYP/aug-cc-pVQZ
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' 3299 3197 1.57      
2 A' 2964 2871 47.02      
3 A' 1856 1799 32.80      
4 A' 1002 971 148.06      
5 A' 866 839 106.63      
6 A" 902 874 4.11      

Unscaled Zero Point Vibrational Energy (zpe) 5444.6 cm-1
Scaled (by 0.9689) 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 B3LYP/aug-cc-pVQZ
ABC
13.23564 1.31258 1.19416

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.110 0.635 0.000
N2 0.110 -0.581 0.000
H3 -0.679 1.397 0.000
H4 -0.751 -1.137 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21661.09641.9701
N21.21662.12971.0247
H31.09642.12972.5347
H41.97011.02472.5347

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 122.818 H3 C1 N2 134.013
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.165      
2 N -0.503      
3 H 0.368      
4 H 0.300      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.110 0.316 0.000 2.134
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.525 0.572 0.000
y 0.572 -11.329 0.000
z 0.000 0.000 -12.918
Traceless
 xyz
x -0.402 0.572 0.000
y 0.572 1.392 0.000
z 0.000 0.000 -0.991
Polar
3z2-r2-1.982
x2-y2-1.196
xy0.572
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.183 0.140 0.000
y 0.140 4.694 0.000
z 0.000 0.000 2.493


<r2> (average value of r2) Å2
<r2> 16.868
(<r2>)1/2 4.107

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3LYP/aug-cc-pVQZ
 hartrees
Energy at 0K-94.016108
Energy at 298.15K-94.017447
HF Energy-94.016108
Nuclear repulsion energy28.268525
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 B3LYP/aug-cc-pVQZ
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' 3425 3319 8.54      
2 A' 3013 2919 22.74      
3 A' 1801 1745 32.53      
4 A' 1182 1145 12.68      
5 A' 909 880 219.80      
6 A" 967 937 105.15      

Unscaled Zero Point Vibrational Energy (zpe) 5648.5 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 5472.8 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 B3LYP/aug-cc-pVQZ
ABC
14.06079 1.30166 1.19137

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 0.645 0.000
N2 -0.000 -0.581 0.000
H3 0.892 1.279 0.000
H4 -0.887 -1.084 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22641.09431.9429
N21.22642.06301.0189
H31.09432.06302.9572
H41.94291.01892.9572

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.554 H3 C1 N2 125.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.239      
2 N -0.448      
3 H 0.373      
4 H 0.313      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.402 0.142 0.000 0.427
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.689 3.236 0.000
y 3.236 -11.727 0.000
z 0.000 0.000 -12.984
Traceless
 xyz
x 0.667 3.236 0.000
y 3.236 0.610 0.000
z 0.000 0.000 -1.277
Polar
3z2-r2-2.554
x2-y20.038
xy3.236
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.230 0.159 0.000
y 0.159 4.521 0.000
z 0.000 0.000 2.555


<r2> (average value of r2) Å2
<r2> 16.832
(<r2>)1/2 4.103