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All results from a given calculation for HOCH (hydroxycarbene)

using model chemistry: MP3/6-31G*

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 MP3/6-31G*
 hartrees
Energy at 0K-114.082519
Energy at 298.15K-114.083942
HF Energy-113.782447
Nuclear repulsion energy30.627837
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 MP3/6-31G*
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' 3738 3509 64.54      
2 A' 2915 2736 157.37      
3 A' 1562 1466 41.30      
4 A' 1395 1310 96.27      
5 A' 1256 1179 130.37      
6 A" 1125 1056 130.77      

Unscaled Zero Point Vibrational Energy (zpe) 5995.8 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 5627.6 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 MP3/6-31G*
ABC
9.52652 1.21348 1.07637

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 0.745 0.000
O2 0.011 -0.571 0.000
H3 -1.084 0.970 0.000
H4 0.936 -0.872 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31611.11721.8632
O21.31611.89000.9734
H31.11721.89002.7336
H41.86320.97342.7336

picture of hydroxycarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 107.997 O2 C1 H3 101.612
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-114.073790
Energy at 298.15K-114.075203
HF Energy-113.773462
Nuclear repulsion energy30.559089
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 MP3/6-31G*
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' 3622 3400 13.48      
2 A' 2812 2639 224.95      
3 A' 1522 1429 47.82      
4 A' 1397 1311 117.27      
5 A' 1295 1215 33.71      
6 A" 1044 980 46.90      

Unscaled Zero Point Vibrational Energy (zpe) 5845.6 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 5486.6 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 MP3/6-31G*
ABC
9.25708 1.20926 1.06955

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 0.745 0.000
O2 0.123 -0.568 0.000
H3 -0.956 1.063 0.000
H4 -0.760 -0.991 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4
C11.31221.12491.9468
O21.31221.95490.9784
H31.12491.95492.0628
H41.94680.97842.0628

picture of hydroxycarbene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H4 115.634 O2 C1 H3 106.416
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability