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 COH (Hydroxymethylidyne)

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 yes CS 2A'
Energy calculated at M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-113.761040
Energy at 298.15K-113.760887
HF Energy-113.761040
Nuclear repulsion energy25.911180
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' 3481 3481 38.04 343.49 0.32 0.48
2 A' 1428 1428 94.34 6.71 0.69 0.81
3 A' 1150 1150 101.18 21.03 0.42 0.59

Unscaled Zero Point Vibrational Energy (zpe) 3029.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3029.5 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
23.11900 1.39810 1.31837

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 0.060 0.791 0.000
O2 0.060 -0.484 0.000
H3 -0.841 -0.876 0.000

Atom - Atom Distances (Å)
  C1 O2 H3
C11.27471.8951
O21.27470.9826
H31.89510.9826

picture of Hydroxymethylidyne state 1 conformation 1
More geometry information
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 -0.000      
2 O -0.168      
3 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.595 -2.175 0.000 2.697
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.384 1.654 0.000
y 1.654 -13.463 0.000
z 0.000 0.000 -11.528
Traceless
 xyz
x 1.111 1.654 0.000
y 1.654 -2.006 0.000
z 0.000 0.000 0.895
Polar
3z2-r21.791
x2-y22.078
xy1.654
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.751 0.292 0.000
y 0.292 3.195 0.000
z 0.000 0.000 2.134


<r2> (average value of r2) Å2
<r2> 14.724
(<r2>)1/2 3.837