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: BLYP/cc-pVTZ

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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-114.438032
Energy at 298.15K-114.439434
HF Energy-114.438032
Nuclear repulsion energy30.382937
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 BLYP/cc-pVTZ
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' 3532 3521 47.12      
2 A' 2721 2713 171.38      
3 A' 1475 1470 18.46      
4 A' 1253 1249 22.69      
5 A' 1173 1170 155.59      
6 A" 1073 1069 110.56      

Unscaled Zero Point Vibrational Energy (zpe) 5613.0 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 5596.2 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 BLYP/cc-pVTZ
ABC
9.39695 1.19310 1.05868

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.752 0.000
O2 0.011 -0.576 0.000
H3 -1.091 0.977 0.000
H4 0.942 -0.879 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.32761.12461.8782
O21.32761.90400.9797
H31.12461.90402.7531
H41.87820.97972.7531

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 108.029 O2 C1 H3 101.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.180      
2 O -0.129      
3 H 0.072      
4 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.226 -1.682 0.000 1.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.329 -3.558 0.000
y -3.558 -13.823 0.000
z 0.000 0.000 -12.153
Traceless
 xyz
x 1.658 -3.558 0.000
y -3.558 -2.082 0.000
z 0.000 0.000 0.423
Polar
3z2-r20.846
x2-y22.493
xy-3.558
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.999 -0.509 0.000
y -0.509 2.950 0.000
z 0.000 0.000 1.919


<r2> (average value of r2) Å2
<r2> 17.618
(<r2>)1/2 4.197

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-114.431699
Energy at 298.15K-114.433088
HF Energy-114.431699
Nuclear repulsion energy30.350657
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 BLYP/cc-pVTZ
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' 3274 3264 68.63      
2 A' 2638 2630 241.11      
3 A' 1435 1431 51.31      
4 A' 1275 1271 27.20      
5 A' 1153 1150 23.97      
6 A" 1005 1002 24.32      

Unscaled Zero Point Vibrational Energy (zpe) 5390.0 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 5373.8 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 BLYP/cc-pVTZ
ABC
9.19702 1.19244 1.05558

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.748 0.000
O2 0.123 -0.571 0.000
H3 -0.955 1.085 0.000
H4 -0.767 -1.008 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31861.12981.9685
O21.31861.97560.9916
H31.12981.97562.1011
H41.96850.99162.1011

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 116.167 O2 C1 H3 107.340
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.119      
2 O -0.119      
3 H 0.041      
4 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.803 -1.655 0.000 3.255
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.587 -0.199 0.000
y -0.199 -13.289 0.000
z 0.000 0.000 -12.112
Traceless
 xyz
x 0.113 -0.199 0.000
y -0.199 -0.939 0.000
z 0.000 0.000 0.826
Polar
3z2-r21.652
x2-y20.701
xy-0.199
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.959 0.106 0.000
y 0.106 3.622 0.000
z 0.000 0.000 1.915


<r2> (average value of r2) Å2
<r2> 17.776
(<r2>)1/2 4.216