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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: QCISD/6-31G*

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-207.373615
Energy at 298.15K-207.376967
HF Energy-206.762002
Nuclear repulsion energy101.530286
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 QCISD/6-31G*
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 3761 3582 32.89      
2 A 3155 3004 6.40      
3 A 3068 2922 24.52      
4 A 2343 2231 2.18      
5 A 1544 1471 1.71      
6 A 1450 1381 51.75      
7 A 1411 1344 1.95      
8 A 1248 1188 20.70      
9 A 1115 1062 90.47      
10 A 1011 963 25.90      
11 A 915 871 22.11      
12 A 576 549 2.85      
13 A 395 376 90.52      
14 A 308 293 78.13      
15 A 210 200 8.26      

Unscaled Zero Point Vibrational Energy (zpe) 11254.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 10717.6 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 QCISD/6-31G*
ABC
1.10812 0.15933 0.14457

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 0.595 0.038
C2 0.827 0.116 -0.006
O3 -1.509 -0.461 -0.115
H4 -0.726 1.155 0.973
H5 -0.746 1.281 -0.797
H6 -1.427 -1.051 0.653
N7 1.926 -0.280 -0.014

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48581.41551.09961.09391.95112.6533
C21.48582.40892.10932.11152.62221.1678
O31.41552.40892.09962.02000.97233.4411
H41.09962.10932.09961.77502.33693.1722
H51.09392.11152.02001.77502.82923.1920
H61.95112.62220.97232.33692.82923.5040
N72.65331.16783.44113.17223.19203.5040

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.342 C1 O3 H6 108.155
C2 C1 O3 112.233 C2 C1 H4 108.418
C2 C1 H5 108.922 O3 C1 H4 112.581
O3 C1 H5 106.511 H4 C1 H5 108.033
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability