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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: MP2/CEP-121G

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/CEP-121G
Rotational Constants (cm-1) from geometry optimized at MP2/CEP-121G
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-38.395139
Energy at 298.15K-38.398362
HF Energy-37.969066
Nuclear repulsion energy53.313730
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/CEP-121G
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 3622 3535 21.93 72.26 0.27 0.43
2 A 3136 3061 7.64 66.05 0.49 0.66
3 A 3027 2955 31.58 113.55 0.10 0.18
4 A 2013 1964 16.28 28.62 0.18 0.30
5 A 1518 1481 3.61 12.52 0.70 0.83
6 A 1413 1379 26.31 8.07 0.74 0.85
7 A 1344 1312 5.79 9.94 0.74 0.85
8 A 1200 1171 19.23 3.80 0.67 0.80
9 A 995 971 4.45 6.42 0.34 0.51
10 A 963 940 107.29 4.09 0.37 0.54
11 A 864 843 31.87 7.02 0.08 0.15
12 A 536 523 6.64 2.83 0.20 0.34
13 A 364 355 157.69 1.59 0.73 0.84
14 A 280 273 56.07 5.94 0.75 0.86
15 A 196 191 6.82 4.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10735.5 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 10477.9 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/CEP-121G
ABC
1.03528 0.15061 0.13618

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 0.628 0.038
C2 0.845 0.128 -0.003
O3 -1.560 -0.473 -0.112
H4 -0.740 1.178 0.979
H5 -0.772 1.286 -0.816
H6 -1.481 -1.112 0.634
N7 1.982 -0.300 -0.016

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.50921.48221.10191.09532.04782.7239
C21.50922.48102.13972.14812.71141.2149
O31.48222.48102.14222.05200.98483.5472
H41.10192.13972.14221.79822.43123.2531
H51.09532.14812.05201.79822.89003.2765
H62.04782.71140.98482.43122.89003.6157
N72.72391.21493.54723.25313.27653.6157

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.418 C1 O3 H6 110.597
C2 C1 O3 112.068 C2 C1 H4 109.064
C2 C1 H5 110.119 O3 C1 H4 111.138
O3 C1 H5 104.525 H4 C1 H5 109.852
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability