return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HCNH (methyleneazane)

using model chemistry: M06-2X/aug-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 M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-93.929612
Energy at 298.15K-93.930906
HF Energy-93.929612
Nuclear repulsion energy28.160522
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 M06-2X/aug-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' 3332 3332 5.87      
2 A' 3048 3048 35.76      
3 A' 1872 1872 46.60      
4 A' 1035 1035 130.23      
5 A' 851 851 109.98      
6 A" 904 904 2.52      

Unscaled Zero Point Vibrational Energy (zpe) 5521.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5521.1 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 M06-2X/aug-cc-pVDZ
ABC
12.54277 1.30435 1.18148

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.113 0.637 0.000
N2 0.113 -0.590 0.000
H3 -0.681 1.403 0.000
H4 -0.786 -1.092 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22681.10361.9482
N21.22682.14551.0294
H31.10362.14552.4970
H41.94821.02942.4970

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.169 H3 C1 N2 133.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.306      
2 N -0.096      
3 H -0.194      
4 H -0.017      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.178 0.525 0.000 2.240
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.360 0.636 0.000
y 0.636 -11.380 0.000
z 0.000 0.000 -12.992
Traceless
 xyz
x -0.175 0.636 0.000
y 0.636 1.296 0.000
z 0.000 0.000 -1.122
Polar
3z2-r2-2.243
x2-y2-0.980
xy0.636
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.019 0.150 0.000
y 0.150 4.488 0.000
z 0.000 0.000 2.352


<r2> (average value of r2) Å2
<r2> 16.925
(<r2>)1/2 4.114

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-93.937011
Energy at 298.15K-93.938346
HF Energy-93.937011
Nuclear repulsion energy28.126886
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 M06-2X/aug-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' 3439 3439 19.67      
2 A' 3049 3049 18.75      
3 A' 1844 1844 42.46      
4 A' 1172 1172 12.30      
5 A' 885 885 243.35      
6 A" 970 970 110.83      

Unscaled Zero Point Vibrational Energy (zpe) 5679.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5679.2 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 M06-2X/aug-cc-pVDZ
ABC
13.61594 1.29293 1.18080

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.647 0.000
N2 0.000 -0.585 0.000
H3 0.901 1.284 0.000
H4 -0.902 -1.070 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23261.10311.9395
N21.23262.07481.0242
H31.10312.07482.9648
H41.93951.02422.9648

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.212 H3 C1 N2 125.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.215      
2 N -0.020      
3 H -0.221      
4 H 0.026      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.422 0.227 0.000 0.479
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.584 3.319 0.000
y 3.319 -11.677 0.000
z 0.000 0.000 -13.037
Traceless
 xyz
x 0.773 3.319 0.000
y 3.319 0.634 0.000
z 0.000 0.000 -1.406
Polar
3z2-r2-2.813
x2-y20.093
xy3.319
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.118 0.111 0.000
y 0.111 4.449 -0.000
z 0.000 -0.000 2.398


<r2> (average value of r2) Å2
<r2> 16.887
(<r2>)1/2 4.109