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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: QCISD/6-31+G**

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/6-31+G**
 hartrees
Energy at 0K-207.415483
Energy at 298.15K-207.418803
HF Energy-206.779747
Nuclear repulsion energy101.548025
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/6-31+G**
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 3888 3675 42.48      
2 A 3202 3027 4.27      
3 A 3116 2946 22.60      
4 A 2332 2205 1.90      
5 A 1543 1459 1.44      
6 A 1443 1364 48.69      
7 A 1394 1318 2.61      
8 A 1235 1168 18.44      
9 A 1105 1045 100.55      
10 A 1007 952 27.27      
11 A 910 860 22.43      
12 A 568 537 3.87      
13 A 379 358 89.97      
14 A 298 281 82.70      
15 A 204 193 8.76      

Unscaled Zero Point Vibrational Energy (zpe) 11311.3 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 10693.8 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/6-31+G**
ABC
1.11990 0.15872 0.14413

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 0.595 0.038
C2 0.827 0.109 -0.005
O3 -1.516 -0.455 -0.112
H4 -0.719 1.148 0.970
H5 -0.739 1.275 -0.795
H6 -1.423 -1.071 0.625
N7 1.929 -0.278 -0.015

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48541.41721.09301.08801.95872.6538
C21.48542.41222.10232.10642.61711.1685
O31.41722.41222.09182.01600.96463.4514
H41.09302.10232.09181.77032.35343.1650
H51.08802.10642.01601.77032.82633.1846
H61.95872.61710.96462.35342.82633.5036
N72.65381.16853.45143.16503.18463.5036

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.828 C1 O3 H6 109.159
C2 C1 O3 112.388 C2 C1 H4 108.273
C2 C1 H5 108.893 O3 C1 H4 112.232
O3 C1 H5 106.420 H4 C1 H5 108.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability