return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: B2PLYP=FULL/TZVP

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 B2PLYP=FULL/TZVP
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/TZVP
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/TZVP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at B2PLYP=FULL/TZVP
 hartrees
Energy at 0K-207.868506
Energy at 298.15K-207.871874
HF Energy-207.633909
Nuclear repulsion energy102.111393
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 B2PLYP=FULL/TZVP
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 3830 3655 45.15 63.70 0.23 0.37
2 A 3147 3003 3.25 77.69 0.39 0.56
3 A 3061 2921 22.90 119.44 0.12 0.22
4 A 2298 2193 1.04 56.84 0.19 0.32
5 A 1506 1437 3.84 10.19 0.67 0.80
6 A 1433 1367 40.09 5.86 0.74 0.85
7 A 1385 1321 2.41 5.65 0.74 0.85
8 A 1230 1173 18.98 3.24 0.56 0.72
9 A 1073 1024 96.05 7.09 0.31 0.47
10 A 1001 956 27.36 0.31 0.63 0.78
11 A 902 861 19.19 2.14 0.11 0.20
12 A 581 555 2.90 2.33 0.21 0.35
13 A 388 370 82.00 0.97 0.69 0.82
14 A 309 295 80.76 4.21 0.74 0.85
15 A 215 205 9.28 4.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11178.7 cm-1
Scaled (by 0.9542) Zero Point Vibrational Energy (zpe) 10666.7 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 B2PLYP=FULL/TZVP
ABC
1.12827 0.16075 0.14586

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.567 0.591 0.038
C2 0.824 0.113 -0.006
O3 -1.513 -0.450 -0.109
H4 -0.703 1.147 0.970
H5 -0.728 1.277 -0.790
H6 -1.395 -1.078 0.611
N7 1.913 -0.281 -0.015

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.47171.41451.09321.08761.94942.6292
C21.47172.40672.08682.09242.59371.1577
O31.41452.40672.09082.01580.96333.4317
H41.09322.08682.09081.76422.35803.1389
H51.08762.09242.01581.76422.82073.1625
H61.94942.59370.96332.35802.82073.4601
N72.62921.15773.43173.13893.16253.4601

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.383 C1 O3 H6 108.651
C2 C1 O3 112.986 C2 C1 H4 107.987
C2 C1 H5 108.761 O3 C1 H4 112.339
O3 C1 H5 106.616 H4 C1 H5 107.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability