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All results from a given calculation for HOCH2CN (cyanomethanol)

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-207.527946
Energy at 298.15K-207.531387
HF Energy-206.787227
Nuclear repulsion energy102.232098
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/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 3881 3647 52.49 49.32 0.25 0.40
2 A 3192 3001 2.25 64.14 0.48 0.65
3 A 3106 2920 17.23 94.14 0.12 0.22
4 A 2232 2098 6.04 32.46 0.23 0.37
5 A 1524 1432 2.88 10.53 0.66 0.80
6 A 1440 1353 39.36 5.37 0.75 0.86
7 A 1402 1317 2.20 4.78 0.73 0.84
8 A 1258 1182 17.71 3.33 0.55 0.71
9 A 1120 1053 88.98 4.74 0.28 0.43
10 A 1010 949 22.34 0.54 0.37 0.54
11 A 921 866 14.61 3.01 0.12 0.21
12 A 592 557 0.79 1.41 0.24 0.39
13 A 412 387 36.68 0.87 0.73 0.85
14 A 323 303 103.30 2.93 0.75 0.86
15 A 229 215 10.22 3.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11320.2 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 10639.8 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 MP2=FULL/6-31G(2df,p)
ABC
1.13052 0.16147 0.14654

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 0.588 0.038
C2 0.814 0.114 -0.004
O3 -1.503 -0.455 -0.111
H4 -0.716 1.154 0.962
H5 -0.733 1.271 -0.795
H6 -1.387 -1.055 0.630
N7 1.916 -0.277 -0.015

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.46641.40481.09341.08851.92682.6352
C21.46642.38802.08702.08732.57191.1690
O31.40482.38802.08792.00920.96053.4242
H41.09342.08702.08791.76072.33273.1510
H51.08852.08732.00921.76072.80473.1654
H61.92682.57190.96052.33272.80473.4540
N72.63521.16903.42423.15103.16543.4540

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.713 C1 O3 H6 107.618
C2 C1 O3 112.534 C2 C1 H4 108.353
C2 C1 H5 108.671 O3 C1 H4 112.794
O3 C1 H5 106.698 H4 C1 H5 107.599
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability