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: LSDA/STO-3G

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 LSDA/STO-3G
 hartrees
Energy at 0K-112.250120
Energy at 298.15K-112.251502
HF Energy-112.250120
Nuclear repulsion energy29.501728
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 LSDA/STO-3G
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' 3551 3180 11.40      
2 A' 2922 2617 82.60      
3 A' 1604 1436 22.75      
4 A' 1375 1231 5.48      
5 A' 1221 1093 60.88      
6 A" 1134 1015 62.06      

Unscaled Zero Point Vibrational Energy (zpe) 5903.6 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 5286.7 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 LSDA/STO-3G
ABC
8.23799 1.14945 1.00870

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.776 0.000
O2 0.010 -0.588 0.000
H3 -1.146 0.917 0.000
H4 1.009 -0.866 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.36401.16461.9222
O21.36401.89761.0371
H31.16461.89762.7971
H41.92221.03712.7971

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 105.557 O2 C1 H3 96.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.110      
2 O -0.159      
3 H 0.027      
4 H 0.241      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.525 -1.763 0.000 1.839
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.637 -2.485 0.000
y -2.485 -12.676 0.000
z 0.000 0.000 -10.333
Traceless
 xyz
x 1.867 -2.485 0.000
y -2.485 -2.691 0.000
z 0.000 0.000 0.824
Polar
3z2-r21.647
x2-y23.039
xy-2.485
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.406 -0.645 0.000
y -0.645 1.473 0.000
z 0.000 0.000 0.626


<r2> (average value of r2) Å2
<r2> 17.100
(<r2>)1/2 4.135

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at LSDA/STO-3G
 hartrees
Energy at 0K-112.242458
Energy at 298.15K-112.243822
HF Energy-112.242458
Nuclear repulsion energy29.608286
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 LSDA/STO-3G
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' 3155 2826 210.85      
2 A' 2866 2566 113.55      
3 A' 1538 1377 30.42      
4 A' 1414 1266 10.70      
5 A' 1168 1046 2.29      
6 A" 1069 957 14.43      

Unscaled Zero Point Vibrational Energy (zpe) 5604.8 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 5019.1 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 LSDA/STO-3G
ABC
8.34129 1.15582 1.01515

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.129 0.763 0.000
O2 0.129 -0.576 0.000
H3 -0.989 1.081 0.000
H4 -0.821 -1.046 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.33941.16212.0438
O21.33941.99901.0602
H31.16211.99902.1338
H42.04381.06022.1338

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 116.316 O2 C1 H3 105.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 O -0.140      
3 H 0.020      
4 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.483 -1.669 0.000 2.992
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.708 0.052 0.000
y 0.052 -11.980 0.000
z 0.000 0.000 -10.336
Traceless
 xyz
x 0.450 0.052 0.000
y 0.052 -1.458 0.000
z 0.000 0.000 1.008
Polar
3z2-r22.016
x2-y21.272
xy0.052
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.128 0.221 0.000
y 0.221 1.998 0.000
z 0.000 0.000 0.670


<r2> (average value of r2) Å2
<r2> 17.175
(<r2>)1/2 4.144