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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: PBE1PBE/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 PBE1PBE/STO-3G
 hartrees
Energy at 0K-112.753502
Energy at 298.15K-112.754896
HF Energy-112.753502
Nuclear repulsion energy29.671069
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 PBE1PBE/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' 3734 3294 9.27      
2 A' 3037 2679 85.46      
3 A' 1660 1465 29.32      
4 A' 1425 1257 12.01      
5 A' 1287 1135 74.06      
6 A" 1138 1004 59.29      

Unscaled Zero Point Vibrational Energy (zpe) 6140.3 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 5416.4 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 PBE1PBE/STO-3G
ABC
8.45906 1.15700 1.01779

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 0.771 0.000
O2 0.010 -0.586 0.000
H3 -1.135 0.930 0.000
H4 0.994 -0.867 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.35761.15611.9116
O21.35761.89981.0237
H31.15611.89982.7865
H41.91161.02372.7865

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 105.938 O2 C1 H3 97.869
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.057      
2 O -0.189      
3 H 0.012      
4 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.522 -1.566 0.000 1.650
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.790 -2.425 0.000
y -2.425 -12.716 0.000
z 0.000 0.000 -10.280
Traceless
 xyz
x 1.707 -2.425 0.000
y -2.425 -2.681 0.000
z 0.000 0.000 0.973
Polar
3z2-r21.947
x2-y22.925
xy-2.425
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.380 -0.653 0.000
y -0.653 1.450 0.000
z 0.000 0.000 0.630


<r2> (average value of r2) Å2
<r2> 17.040
(<r2>)1/2 4.128

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-112.744688
Energy at 298.15K-112.746066
HF Energy-112.744688
Nuclear repulsion energy29.705337
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 PBE1PBE/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' 3523 3108 73.99      
2 A' 2984 2633 105.58      
3 A' 1606 1416 26.83      
4 A' 1442 1272 20.97      
5 A' 1267 1118 15.44      
6 A" 1056 931 19.30      

Unscaled Zero Point Vibrational Energy (zpe) 5938.9 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 5238.7 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 PBE1PBE/STO-3G
ABC
8.43155 1.15803 1.01819

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.129 0.764 0.000
O2 0.129 -0.580 0.000
H3 -0.988 1.066 0.000
H4 -0.812 -1.012 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.34351.15672.0094
O21.34351.98851.0348
H31.15671.98852.0853
H42.00941.03482.0853

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 114.701 O2 C1 H3 105.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.032      
2 O -0.176      
3 H -0.001      
4 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.466 -1.573 0.000 2.925
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.777 0.131 0.000
y 0.131 -12.181 0.000
z 0.000 0.000 -10.281
Traceless
 xyz
x 0.454 0.131 0.000
y 0.131 -1.652 0.000
z 0.000 0.000 1.198
Polar
3z2-r22.397
x2-y21.404
xy0.131
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.092 0.125 0.000
y 0.125 1.805 0.000
z 0.000 0.000 0.680


<r2> (average value of r2) Å2
<r2> 17.135
(<r2>)1/2 4.139