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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: MP2/6-31G(2df,p)

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 MP2/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at MP2/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-207.495547
Energy at 298.15K-207.498916
HF Energy-206.786274
Nuclear repulsion energy101.942624
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 MP2/6-31G(2df,p)
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 3875 3660 52.19 49.45 0.25 0.40
2 A 3185 3008 2.35 64.39 0.48 0.65
3 A 3099 2927 17.32 94.42 0.12 0.22
4 A 2211 2088 6.76 31.79 0.23 0.37
5 A 1517 1433 2.51 10.67 0.67 0.80
6 A 1435 1355 41.19 5.29 0.75 0.86
7 A 1396 1318 2.26 4.66 0.72 0.84
8 A 1243 1174 16.38 3.68 0.56 0.72
9 A 1110 1049 90.13 4.79 0.27 0.42
10 A 1002 946 21.58 0.47 0.35 0.52
11 A 911 860 14.82 3.15 0.12 0.22
12 A 579 547 1.27 1.34 0.24 0.38
13 A 391 369 58.93 0.69 0.73 0.84
14 A 308 291 80.53 3.14 0.75 0.86
15 A 215 203 9.47 3.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11237.6 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 10614.0 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 MP2/6-31G(2df,p)
ABC
1.11816 0.16077 0.14578

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.578 0.590 0.038
C2 0.817 0.120 -0.006
O3 -1.503 -0.460 -0.111
H4 -0.723 1.154 0.965
H5 -0.744 1.274 -0.796
H6 -1.385 -1.058 0.632
N7 1.920 -0.279 -0.015

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.47291.40771.09531.09031.92942.6459
C21.47292.39422.09392.09572.57761.1733
O31.40772.39422.09132.01240.96143.4300
H41.09532.09392.09131.76522.33363.1628
H51.09032.09572.01241.76522.80823.1811
H61.92942.57760.96142.33362.80823.4572
N72.64591.17333.43003.16283.18113.4572

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.256 C1 O3 H6 107.565
C2 C1 O3 112.414 C2 C1 H4 108.346
C2 C1 H5 108.780 O3 C1 H4 112.748
O3 C1 H5 106.645 H4 C1 H5 107.734
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability