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All results from a given calculation for HOCHNH (hydroxymethylimine)

using model chemistry: QCISD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS H all up 1A'
1 2 yes CS OH down 1A'
1 3 no CS CH up 1A'

Conformer 1 (CS H all up)

Jump to S1C2 S1C3
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-169.395741
Energy at 298.15K-169.399685
HF Energy-168.892698
Nuclear repulsion energy70.249158
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 QCISD(T)/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' 3753 3601        
2 A' 3478 3337        
3 A' 3064 2940        
4 A' 1769 1697        
5 A' 1460 1400        
6 A' 1361 1306        
7 A' 1223 1173        
8 A' 1077 1033        
9 A' 609 585        
10 A" 1029 987        
11 A" 837 803        
12 A" 361 346        

Unscaled Zero Point Vibrational Energy (zpe) 10010.2 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 9602.8 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 QCISD(T)/6-31G*
ABC
2.55803 0.36610 0.32026

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.383 0.000
O2 -1.010 -0.536 0.000
N3 1.206 -0.024 0.000
H4 -0.337 1.431 0.000
H5 -1.860 -0.062 0.000
H6 1.834 0.786 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.36541.27321.10081.91271.8777
O21.36542.27492.07880.97273.1362
N31.27322.27492.12093.06671.0248
H41.10082.07882.12092.13342.2642
H51.91270.97273.06672.13343.7902
H61.87773.13621.02482.26423.7902

picture of hydroxymethylimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 108.614 C1 N3 H6 109.106
O2 C1 N3 119.072 O2 C1 H4 114.475
N3 C1 H4 126.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS OH down)

Jump to S1C1 S1C3
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-169.406637
Energy at 298.15K-169.410783
HF Energy-168.904394
Nuclear repulsion energy70.612054
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 QCISD(T)/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' 3659 3510        
2 A' 3489 3347        
3 A' 3150 3022        
4 A' 1743 1672        
5 A' 1430 1372        
6 A' 1403 1346        
7 A' 1217 1167        
8 A' 1088 1044        
9 A' 585 562        
10 A" 1041 999        
11 A" 840 806        
12 A" 631 605        

Unscaled Zero Point Vibrational Energy (zpe) 10138.5 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 9725.9 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 QCISD(T)/6-31G*
ABC
2.31636 0.37922 0.32587

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.425 0.000
O2 -1.121 -0.339 0.000
N3 1.165 -0.099 0.000
H4 -0.264 1.487 0.000
H5 -0.806 -1.267 0.000
H6 1.883 0.632 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.35601.27671.09501.87431.8940
O21.35602.29772.01700.98053.1561
N31.27672.29772.13472.29121.0241
H41.09502.01702.13472.80762.3113
H51.87430.98052.29122.80763.2917
H61.89403.15611.02412.31133.2917

picture of hydroxymethylimine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 105.555 C1 N3 H6 110.329
O2 C1 N3 121.535 O2 C1 H4 110.303
N3 C1 H4 128.162
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (CS CH up)

Jump to S1C1 S1C2
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-169.401354
Energy at 298.15K-169.405422
HF Energy-168.898096
Nuclear repulsion energy70.123577
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 QCISD(T)/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' 3688 3538        
2 A' 3397 3258        
3 A' 3215 3084        
4 A' 1734 1664        
5 A' 1431 1373        
6 A' 1388 1332        
7 A' 1147 1100        
8 A' 1093 1048        
9 A' 588 564        
10 A" 1077 1033        
11 A" 840 806        
12 A" 509 489        

Unscaled Zero Point Vibrational Energy (zpe) 10052.9 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 9643.8 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 QCISD(T)/6-31G*
ABC
2.22064 0.36971 0.31694

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
O2 -1.112 -0.356 0.000
N3 1.236 0.127 0.000
H4 -0.301 1.491 0.000
H5 -0.827 -1.291 0.000
H6 1.370 -0.895 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.36951.27611.09041.92071.9150
O21.36952.39792.01740.97742.5404
N31.27612.39792.05502.50331.0306
H41.09042.01742.05502.83102.9128
H51.92070.97742.50332.83102.2324
H61.91502.54041.03062.91282.2324

picture of hydroxymethylimine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 108.696 C1 N3 H6 111.795
O2 C1 N3 129.984 O2 C1 H4 109.676
N3 C1 H4 120.340
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability