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All results from a given calculation for HOCHNH (hydroxymethylimine)

using model chemistry: QCISD(T)/aug-cc-pVDZ

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)/aug-cc-pVDZ
 hartrees
Energy at 0K-169.486129
Energy at 298.15K-169.490078
HF Energy-168.932739
Nuclear repulsion energy69.968601
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)/aug-cc-pVDZ
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' 3816 3731        
2 A' 3487 3410        
3 A' 3073 3005        
4 A' 1711 1673        
5 A' 1399 1368        
6 A' 1325 1296        
7 A' 1188 1162        
8 A' 1045 1022        
9 A' 596 582        
10 A" 998 976        
11 A" 816 798        
12 A" 377 368        

Unscaled Zero Point Vibrational Energy (zpe) 9915.0 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 9694.9 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)/aug-cc-pVDZ
ABC
2.53167 0.36286 0.31737

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.385 0.000
O2 -1.016 -0.536 0.000
N3 1.213 -0.026 0.000
H4 -0.333 1.440 0.000
H5 -1.861 -0.066 0.000
H6 1.836 0.790 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.37201.28051.10551.91521.8797
O21.37202.28642.09080.96723.1452
N31.28052.28642.13013.07401.0267
H41.10552.09082.13012.14522.2641
H51.91520.96723.07402.14523.7947
H61.87973.14521.02672.26413.7947

picture of hydroxymethylimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 108.677 C1 N3 H6 108.619
O2 C1 N3 119.033 O2 C1 H4 114.683
N3 C1 H4 126.284
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS OH down)

Jump to S1C1 S1C3
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-169.494363
Energy at 298.15K-169.498481
HF Energy-168.942075
Nuclear repulsion energy70.302894
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)/aug-cc-pVDZ
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' 3723 3640        
2 A' 3494 3416        
3 A' 3142 3072        
4 A' 1688 1651        
5 A' 1377 1346        
6 A' 1369 1338        
7 A' 1187 1160        
8 A' 1057 1033        
9 A' 575 562        
10 A" 1015 992        
11 A" 819 801        
12 A" 597 584        

Unscaled Zero Point Vibrational Energy (zpe) 10020.1 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 9797.6 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 QCISD(T)/aug-cc-pVDZ
ABC
2.30342 0.37482 0.32237

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.425 0.000
O2 -1.126 -0.342 0.000
N3 1.173 -0.098 0.000
H4 -0.258 1.495 0.000
H5 -0.822 -1.268 0.000
H6 1.881 0.645 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.36281.28391.10071.88171.8936
O21.36282.31192.03200.97403.1649
N31.28392.31192.14122.31241.0259
H41.10072.03202.14122.81952.3020
H51.88170.97402.31242.81953.3108
H61.89363.16491.02592.30203.3108

picture of hydroxymethylimine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 106.067 C1 N3 H6 109.624
O2 C1 N3 121.702 O2 C1 H4 110.696
N3 C1 H4 127.601
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (CS CH up)

Jump to S1C1 S1C2
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-169.489147
Energy at 298.15K-169.493193
HF Energy-168.935641
Nuclear repulsion energy69.864700
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)/aug-cc-pVDZ
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' 3756 3673        
2 A' 3414 3338        
3 A' 3193 3122        
4 A' 1685 1648        
5 A' 1392 1361        
6 A' 1348 1318        
7 A' 1126 1101        
8 A' 1051 1028        
9 A' 571 559        
10 A" 1052 1028        
11 A" 825 806        
12 A" 494 483        

Unscaled Zero Point Vibrational Energy (zpe) 9953.3 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 9732.3 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)/aug-cc-pVDZ
ABC
2.19291 0.36717 0.31451

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.447 0.000
O2 -1.116 -0.359 0.000
N3 1.242 0.125 0.000
H4 -0.304 1.501 0.000
H5 -0.829 -1.287 0.000
H6 1.368 -0.899 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.37671.28261.09701.92201.9192
O21.37672.40672.03000.97132.5418
N31.28262.40672.06922.50611.0318
H41.09702.03002.06922.83732.9250
H51.92200.97132.50612.83732.2307
H61.91922.54181.03182.92502.2307

picture of hydroxymethylimine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 108.652 C1 N3 H6 111.575
O2 C1 N3 129.612 O2 C1 H4 109.777
N3 C1 H4 120.610
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability