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All results from a given calculation for HOCHNH (hydroxymethylimine)

using model chemistry: QCISD(T)/cc-pVTZ

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)/cc-pVTZ
 hartrees
Energy at 0K-169.617321
Energy at 298.15K-169.621306
HF Energy-168.971405
Nuclear repulsion energy70.682084
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)/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' 3864 3666        
2 A' 3528 3346        
3 A' 3068 2911        
4 A' 1746 1656        
5 A' 1421 1348        
6 A' 1343 1274        
7 A' 1200 1138        
8 A' 1066 1011        
9 A' 610 579        
10 A" 1034 981        
11 A" 832 789        
12 A" 387 367        

Unscaled Zero Point Vibrational Energy (zpe) 10048.7 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 9532.1 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 QCISD(T)/cc-pVTZ
ABC
2.61202 0.36909 0.32340

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.377 0.000
O2 -1.007 -0.534 0.000
N3 1.202 -0.020 0.000
H4 -0.335 1.418 0.000
H5 -1.843 -0.061 0.000
H6 1.815 0.791 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.35771.26601.09321.89391.8613
O21.35772.26782.06420.96083.1170
N31.26602.26782.10443.04501.0164
H41.09322.06422.10442.11172.2388
H51.89390.96083.04502.11173.7551
H61.86133.11701.01642.23883.7551

picture of hydroxymethylimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 108.325 C1 N3 H6 108.786
O2 C1 N3 119.576 O2 C1 H4 114.325
N3 C1 H4 126.098
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS OH down)

Jump to S1C1 S1C3
Energy calculated at QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-169.626120
Energy at 298.15K-169.630269
HF Energy-168.980986
Nuclear repulsion energy71.037549
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)/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' 3766 3572        
2 A' 3533 3351        
3 A' 3139 2978        
4 A' 1720 1631        
5 A' 1402 1330        
6 A' 1384 1312        
7 A' 1195 1133        
8 A' 1075 1020        
9 A' 583 553        
10 A" 1048 994        
11 A" 835 792        
12 A" 615 583        

Unscaled Zero Point Vibrational Energy (zpe) 10146.6 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 9625.0 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)/cc-pVTZ
ABC
2.35903 0.38250 0.32913

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.420 0.000
O2 -1.115 -0.339 0.000
N3 1.160 -0.095 0.000
H4 -0.256 1.477 0.000
H5 -0.806 -1.256 0.000
H6 1.863 0.638 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.34891.26941.08831.85931.8761
O21.34892.28872.00930.96803.1348
N31.26942.28872.11652.28311.0158
H41.08832.00932.11652.78822.2797
H51.85930.96802.28312.78823.2728
H61.87613.13481.01582.27973.2728

picture of hydroxymethylimine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 105.564 C1 N3 H6 109.867
O2 C1 N3 121.849 O2 C1 H4 110.609
N3 C1 H4 127.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (CS CH up)

Jump to S1C1 S1C2
Energy calculated at QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-169.621144
Energy at 298.15K-169.625229
HF Energy-168.974892
Nuclear repulsion energy70.636649
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)/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' 3795 3600        
2 A' 3442 3265        
3 A' 3190 3026        
4 A' 1715 1626        
5 A' 1412 1340        
6 A' 1369 1299        
7 A' 1135 1077        
8 A' 1086 1030        
9 A' 589 559        
10 A" 1076 1021        
11 A" 847 804        
12 A" 507 481        

Unscaled Zero Point Vibrational Energy (zpe) 10081.4 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 9563.3 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)/cc-pVTZ
ABC
2.23168 0.37626 0.32197

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.443 0.000
O2 -1.103 -0.353 0.000
N3 1.227 0.121 0.000
H4 -0.296 1.487 0.000
H5 -0.811 -1.273 0.000
H6 1.345 -0.895 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.36111.26881.08481.89871.8973
O21.36112.37842.00960.96542.5076
N31.26882.37842.04622.46941.0225
H41.08482.00962.04622.80792.8925
H51.89870.96542.46942.80792.1890
H61.89732.50761.02252.89252.1890

picture of hydroxymethylimine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 108.195 C1 N3 H6 111.347
O2 C1 N3 129.442 O2 C1 H4 109.977
N3 C1 H4 120.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability