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 HOCH (hydroxycarbene)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
1 2 no CS cis 1A'

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at HF/SDD
 hartrees
Energy at 0K-113.756573
Energy at 298.15K-113.757989
HF Energy-113.756573
Nuclear repulsion energy30.368541
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 HF/SDD
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' 4062 3657 111.21      
2 A' 3146 2833 140.90      
3 A' 1581 1423 60.71      
4 A' 1316 1185 215.30      
5 A' 1265 1139 144.74      
6 A" 1087 979 228.09      

Unscaled Zero Point Vibrational Energy (zpe) 6228.2 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 5607.9 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 HF/SDD
ABC
10.51808 1.15806 1.04320

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 0.760 0.000
O2 0.012 -0.577 0.000
H3 -1.054 1.023 0.000
H4 0.880 -0.970 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.33681.09811.9358
O21.33681.92260.9527
H31.09811.92262.7773
H41.93580.95272.7773

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.407 O2 C1 H3 103.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.007      
2 O -0.557      
3 H 0.111      
4 H 0.439      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.245 -1.110 0.000 1.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.268 -4.588 0.000
y -4.588 -13.870 0.000
z 0.000 0.000 -11.887
Traceless
 xyz
x 1.611 -4.588 0.000
y -4.588 -2.293 0.000
z 0.000 0.000 0.682
Polar
3z2-r21.364
x2-y22.602
xy-4.588
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.063 -0.559 0.000
y -0.559 2.299 0.000
z 0.000 0.000 1.407


<r2> (average value of r2) Å2
<r2> 17.711
(<r2>)1/2 4.208

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at HF/SDD
 hartrees
Energy at 0K-113.744413
Energy at 298.15K-113.745813
HF Energy-113.744413
Nuclear repulsion energy30.229984
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 HF/SDD
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' 3958 3563 28.41      
2 A' 2983 2686 239.40      
3 A' 1542 1388 95.93      
4 A' 1308 1178 191.22      
5 A' 1281 1153 73.85      
6 A" 991 892 73.59      

Unscaled Zero Point Vibrational Energy (zpe) 6030.5 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 5429.9 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 HF/SDD
ABC
10.04795 1.15083 1.03257

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.117 0.763 0.000
O2 0.117 -0.575 0.000
H3 -0.943 1.098 0.000
H4 -0.698 -1.076 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.33711.11232.0116
O21.33711.98070.9575
H31.11231.98072.1886
H42.01160.95752.1886

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 121.613 O2 C1 H3 107.573
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.090      
2 O -0.564      
3 H 0.067      
4 H 0.408      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.780 -1.250 0.000 3.981
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.695 0.019 0.000
y 0.019 -13.462 0.000
z 0.000 0.000 -11.856
Traceless
 xyz
x -0.036 0.019 0.000
y 0.019 -1.186 0.000
z 0.000 0.000 1.222
Polar
3z2-r22.445
x2-y20.767
xy0.019
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.966 -0.063 0.000
y -0.063 2.555 0.000
z 0.000 0.000 1.447


<r2> (average value of r2) Å2
<r2> 17.979
(<r2>)1/2 4.240