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All results from a given calculation for HOCH2CN (cyanomethanol)

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

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(T)/6-31G*
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-207.393244
Energy at 298.15K-207.396554
HF Energy-206.760592
Nuclear repulsion energy101.294674
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 3727 3576        
2 A 3136 3008        
3 A 3046 2922        
4 A 2290 2197        
5 A 1535 1472        
6 A 1440 1382        
7 A 1399 1342        
8 A 1237 1187        
9 A 1097 1052        
10 A 1002 961        
11 A 904 867        
12 A 565 542        
13 A 391 375        
14 A 299 287        
15 A 202 194        

Unscaled Zero Point Vibrational Energy (zpe) 11134.8 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 10681.6 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)/6-31G*
ABC
1.09877 0.15887 0.14404

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.581 0.597 0.038
C2 0.827 0.120 -0.007
O3 -1.511 -0.464 -0.115
H4 -0.729 1.158 0.975
H5 -0.752 1.283 -0.799
H6 -1.417 -1.057 0.652
N7 1.930 -0.282 -0.014

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48731.41891.10131.09541.95212.6607
C21.48732.41182.11182.11462.61771.1738
O31.41892.41182.10422.02340.97433.4467
H41.10132.11182.10421.77802.34113.1807
H51.09542.11462.02341.77802.83223.2022
H61.95212.61770.97432.34112.83223.4989
N72.66071.17383.44673.18073.20223.4989

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.110 C1 O3 H6 107.869
C2 C1 O3 112.157 C2 C1 H4 108.417
C2 C1 H5 108.983 O3 C1 H4 112.607
O3 C1 H5 106.466 H4 C1 H5 108.073
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability