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All results from a given calculation for HOCH2CN (cyanomethanol)

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD(T)/6-311G*
 hartrees
Energy at 0K-207.479190
Energy at 298.15K-207.482551
HF Energy-206.810290
Nuclear repulsion energy101.592826
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)/6-311G*
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 3804 3663        
2 A 3124 3008        
3 A 3031 2918        
4 A 2272 2187        
5 A 1516 1460        
6 A 1445 1392        
7 A 1396 1344        
8 A 1243 1197        
9 A 1102 1061        
10 A 997 960        
11 A 894 861        
12 A 573 552        
13 A 399 385        
14 A 310 298        
15 A 211 203        

Unscaled Zero Point Vibrational Energy (zpe) 11157.8 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 10742.7 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)/6-311G*
ABC
1.11372 0.15915 0.14443

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.581 0.593 0.038
C2 0.829 0.118 -0.007
O3 -1.512 -0.459 -0.112
H4 -0.722 1.152 0.975
H5 -0.747 1.279 -0.798
H6 -1.409 -1.062 0.631
N7 1.926 -0.280 -0.014

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48801.41221.10051.09421.94352.6552
C21.48802.41242.10642.11142.60861.1676
O31.41222.41242.09742.01880.96273.4440
H41.10052.10642.09741.77802.34373.1687
H51.09422.11142.01881.77802.82193.1925
H61.94352.60860.96272.34372.82193.4859
N72.65521.16763.44403.16873.19253.4859

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.146 C1 O3 H6 108.347
C2 C1 O3 112.539 C2 C1 H4 107.992
C2 C1 H5 108.746 O3 C1 H4 112.584
O3 C1 H5 106.620 H4 C1 H5 108.219
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability