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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: mPW1PW91/cc-pVDZ

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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-93.938851
Energy at 298.15K-93.940148
HF Energy-93.938851
Nuclear repulsion energy28.132702
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 mPW1PW91/cc-pVDZ
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' 3319 3181 5.24      
2 A' 3002 2876 50.01      
3 A' 1879 1801 27.51      
4 A' 1021 978 147.06      
5 A' 876 839 91.75      
6 A" 908 870 3.17      

Unscaled Zero Point Vibrational Energy (zpe) 5502.3 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 5272.8 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 mPW1PW91/cc-pVDZ
ABC
12.58982 1.30092 1.17909

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.113 0.636 0.000
N2 0.113 -0.591 0.000
H3 -0.675 1.415 0.000
H4 -0.789 -1.094 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22641.10781.9508
N21.22642.15461.0327
H31.10782.15462.5116
H41.95081.03272.5116

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.184 H3 C1 N2 134.690
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.049      
2 N -0.145      
3 H 0.076      
4 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.111 0.386 0.000 2.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.887 0.595 0.000
y 0.595 -10.997 0.000
z 0.000 0.000 -12.393
Traceless
 xyz
x -0.192 0.595 0.000
y 0.595 1.143 0.000
z 0.000 0.000 -0.951
Polar
3z2-r2-1.901
x2-y2-0.890
xy0.595
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.078 0.061 0.000
y 0.061 3.802 0.000
z 0.000 0.000 1.335


<r2> (average value of r2) Å2
<r2> 16.654
(<r2>)1/2 4.081

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-93.946131
Energy at 298.15K-93.947473
HF Energy-93.946131
Nuclear repulsion energy28.064053
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 mPW1PW91/cc-pVDZ
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 3300 6.46      
2 A' 3045 2918 27.72      
3 A' 1834 1757 27.31      
4 A' 1202 1152 9.21      
5 A' 907 869 214.90      
6 A" 976 935 110.03      

Unscaled Zero Point Vibrational Energy (zpe) 5703.5 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 5465.6 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 mPW1PW91/cc-pVDZ
ABC
13.16502 1.29300 1.17737

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.649 0.000
N2 0.000 -0.588 0.000
H3 0.913 1.274 0.000
H4 -0.915 -1.053 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23611.10671.9323
N21.23612.07321.0271
H31.10672.07322.9594
H41.93231.02712.9594

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.950 H3 C1 N2 124.387
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.085      
2 N -0.140      
3 H 0.090      
4 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.466 0.140 0.000 0.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.040 2.971 0.000
y 2.971 -11.305 0.000
z 0.000 0.000 -12.420
Traceless
 xyz
x 0.823 2.971 0.000
y 2.971 0.425 0.000
z 0.000 0.000 -1.248
Polar
3z2-r2-2.496
x2-y20.265
xy2.971
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.285 0.501 0.000
y 0.501 3.634 0.000
z 0.000 0.000 1.386


<r2> (average value of r2) Å2
<r2> 16.582
(<r2>)1/2 4.072