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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: QCISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C1 1A

Conformer 1 (Cs)

Jump to S1C2
Vibrational Frequencies calculated at QCISD/6-311G**
Rotational Constants (cm-1) from geometry optimized at QCISD/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-207.484325
Energy at 298.15K-207.487736
HF Energy-206.822421
Nuclear repulsion energy101.930269
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/6-311G**
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 3906 3727 38.97      
2 A 3150 3005 6.40      
3 A 3066 2925 27.15      
4 A 2329 2222 2.42      
5 A 1522 1453 1.96      
6 A 1455 1388 51.42      
7 A 1409 1344 2.12      
8 A 1249 1191 16.48      
9 A 1123 1072 94.04      
10 A 1012 966 18.46      
11 A 905 864 20.77      
12 A 584 557 3.55      
13 A 402 384 85.56      
14 A 319 305 65.78      
15 A 217 207 8.74      

Unscaled Zero Point Vibrational Energy (zpe) 11324.7 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 10804.9 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/6-311G**
ABC
1.12057 0.16017 0.14534

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.581 0.591 0.037
C2 0.827 0.115 -0.006
O3 -1.509 -0.458 -0.110
H4 -0.719 1.151 0.972
H5 -0.739 1.277 -0.798
H6 -1.380 -1.060 0.624
N7 1.919 -0.278 -0.015

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48621.40861.09801.09231.92642.6469
C21.48622.40722.10162.10432.57841.1609
O31.40862.40722.09362.01880.95903.4341
H41.09802.10162.09361.77432.33383.1579
H51.09232.10432.01881.77432.81033.1772
H61.92642.57840.95902.33382.81033.4502
N72.64691.16093.43413.15793.17723.4502

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.354 C1 O3 H6 107.382
C2 C1 O3 112.491 C2 C1 H4 107.890
C2 C1 H5 108.422 O3 C1 H4 112.699
O3 C1 H5 106.977 H4 C1 H5 108.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability