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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: MP2=FULL/3-21G*

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 MP2=FULL/3-21G*
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-206.031146
Energy at 298.15K-206.034594
HF Energy-205.604338
Nuclear repulsion energy99.984787
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 MP2=FULL/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3511 3328 6.92 75.19 0.30 0.46
2 A 3170 3006 4.74 72.53 0.43 0.61
3 A 3079 2919 23.57 87.64 0.18 0.31
4 A 2140 2029 15.17 15.94 0.27 0.42
5 A 1592 1509 2.64 19.60 0.69 0.82
6 A 1438 1363 17.61 11.39 0.74 0.85
7 A 1419 1345 4.90 11.48 0.75 0.85
8 A 1282 1216 21.98 5.26 0.70 0.82
9 A 1027 974 0.31 5.06 0.40 0.57
10 A 983 932 84.86 2.99 0.33 0.50
11 A 878 832 24.82 2.80 0.11 0.19
12 A 585 554 2.35 1.95 0.26 0.41
13 A 441 418 67.81 1.63 0.73 0.84
14 A 343 325 109.68 8.34 0.75 0.86
15 A 224 213 6.11 3.81 0.75 0.85

Unscaled Zero Point Vibrational Energy (zpe) 11055.8 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 10480.9 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 MP2=FULL/3-21G*
ABC
1.05381 0.15563 0.14067

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.564 0.616 0.037
C2 0.836 0.129 0.003
O3 -1.541 -0.470 -0.116
H4 -0.716 1.193 0.958
H5 -0.738 1.276 -0.815
H6 -1.449 -1.063 0.676
N7 1.943 -0.301 -0.019

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48291.46831.09781.09152.00202.6699
C21.48292.45422.11042.11292.66341.1874
O31.46832.45422.14462.04440.99333.4890
H41.09782.11042.14461.77492.38863.2027
H51.09152.11292.04441.77492.86273.2108
H62.00202.66340.99332.38862.86273.5448
N72.66991.18743.48903.20273.21083.5448

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 177.916 C1 O3 H6 107.260
C2 C1 O3 112.526 C2 C1 H4 108.810
C2 C1 H5 109.370 O3 C1 H4 112.590
O3 C1 H5 105.050 H4 C1 H5 108.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability