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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: MP2/3-21G*

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-206.024352
Energy at 298.15K-206.027800
HF Energy-205.604285
Nuclear repulsion energy99.970465
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 MP2/3-21G*
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 3510 3339 6.89 75.19 0.30 0.46
2 A 3170 3016 4.77 72.56 0.43 0.61
3 A 3079 2929 23.62 87.68 0.18 0.31
4 A 2139 2035 15.19 15.92 0.27 0.43
5 A 1592 1514 2.62 19.60 0.69 0.82
6 A 1438 1368 17.88 11.43 0.75 0.85
7 A 1419 1350 4.70 11.44 0.75 0.85
8 A 1283 1220 21.94 5.26 0.70 0.82
9 A 1027 977 0.30 5.05 0.40 0.57
10 A 983 935 84.82 3.01 0.33 0.50
11 A 878 835 24.85 2.80 0.11 0.19
12 A 585 556 2.34 1.96 0.26 0.41
13 A 441 420 67.46 1.62 0.73 0.84
14 A 343 327 109.93 8.34 0.75 0.86
15 A 224 213 6.13 3.82 0.75 0.85

Unscaled Zero Point Vibrational Energy (zpe) 11054.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 10516.6 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 MP2/3-21G*
ABC
1.05355 0.15558 0.14062

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

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 -0.302 -0.019

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48321.46851.09791.09162.00212.6702
C21.48322.45462.11072.11312.66361.1875
O31.46852.45462.14492.04470.99343.4896
H41.09792.11072.14491.77522.38873.2030
H51.09162.11312.04471.77522.86293.2111
H62.00212.66360.99342.38872.86293.5452
N72.67021.18753.48963.20303.21113.5452

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 177.920 C1 O3 H6 107.247
C2 C1 O3 112.526 C2 C1 H4 108.806
C2 C1 H5 109.367 O3 C1 H4 112.590
O3 C1 H5 105.048 H4 C1 H5 108.343
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability