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: HSEh1PBE/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 HSEh1PBE/6-311G*
 hartrees
Energy at 0K-93.872651
Energy at 298.15K-93.873952
HF Energy-93.872651
Nuclear repulsion energy28.283521
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 HSEh1PBE/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' 3335 3200 6.40      
2 A' 2989 2868 62.48      
3 A' 1879 1803 29.23      
4 A' 1025 984 149.45      
5 A' 885 849 118.88      
6 A" 921 884 6.98      

Unscaled Zero Point Vibrational Energy (zpe) 5516.6 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 5293.7 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 HSEh1PBE/6-311G*
ABC
12.92220 1.31141 1.19058

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.635 0.000
N2 0.111 -0.585 0.000
H3 -0.680 1.400 0.000
H4 -0.767 -1.115 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21981.10021.9580
N21.21982.13641.0257
H31.10022.13642.5164
H41.95801.02572.5164

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.133 H3 C1 N2 134.036
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 N -0.448      
3 H 0.221      
4 H 0.314      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.329 0.384 0.000 2.360
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.069 0.674 0.000
y 0.674 -11.115 0.000
z 0.000 0.000 -12.646
Traceless
 xyz
x -0.189 0.674 0.000
y 0.674 1.243 0.000
z 0.000 0.000 -1.054
Polar
3z2-r2-2.108
x2-y2-0.954
xy0.674
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.111 0.088 0.000
y 0.088 3.943 0.000
z 0.000 0.000 1.392


<r2> (average value of r2) Å2
<r2> 16.687
(<r2>)1/2 4.085

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HSEh1PBE/6-311G*
 hartrees
Energy at 0K-93.880763
Energy at 298.15K-93.882113
HF Energy-93.880763
Nuclear repulsion energy28.212651
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 HSEh1PBE/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' 3467 3327 2.11      
2 A' 3044 2921 32.96      
3 A' 1829 1755 30.14      
4 A' 1225 1175 13.41      
5 A' 929 891 232.55      
6 A" 991 951 128.27      

Unscaled Zero Point Vibrational Energy (zpe) 5741.9 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 5509.9 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 HSEh1PBE/6-311G*
ABC
13.54931 1.30280 1.18852

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 0.647 0.000
N2 -0.001 -0.583 0.000
H3 0.907 1.265 0.000
H4 -0.899 -1.066 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23001.09801.9344
N21.23002.05891.0199
H31.09802.05892.9488
H41.93441.01992.9488

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.285 H3 C1 N2 124.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.122      
2 N -0.440      
3 H 0.234      
4 H 0.328      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.533 0.166 0.000 0.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.155 3.259 0.000
y 3.259 -11.469 0.000
z 0.000 0.000 -12.683
Traceless
 xyz
x 0.921 3.259 0.000
y 3.259 0.450 0.000
z 0.000 0.000 -1.371
Polar
3z2-r2-2.742
x2-y20.314
xy3.259
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.298 0.405 0.000
y 0.405 3.748 0.000
z 0.000 0.000 1.461


<r2> (average value of r2) Å2
<r2> 16.610
(<r2>)1/2 4.075