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: MP4/6-31G*

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 MP4/6-31G*
Rotational Constants (cm-1) from geometry optimized at MP4/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-207.395912
Energy at 298.15K-207.399218
HF Energy-206.759094
Nuclear repulsion energy101.156346
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 MP4/6-31G*
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 3736 3567 0.00      
2 A 3141 2999 0.00      
3 A 3049 2911 0.00      
4 A 2198 2098 0.00      
5 A 1536 1466 0.00      
6 A 1439 1373 0.00      
7 A 1398 1335 0.00      
8 A 1237 1181 0.00      
9 A 1093 1044 0.00      
10 A 1002 957 0.00      
11 A 902 862 0.00      
12 A 563 538 0.00      
13 A 392 374 0.00      
14 A 298 284 0.00      
15 A 200 191 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11091.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 10590.1 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 MP4/6-31G*
ABC
1.09777 0.15844 0.14367

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.582 0.597 0.038
C2 0.825 0.122 -0.007
O3 -1.512 -0.465 -0.115
H4 -0.730 1.158 0.974
H5 -0.754 1.282 -0.799
H6 -1.417 -1.056 0.653
N7 1.934 -0.282 -0.014

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48531.41961.10151.09541.95152.6657
C21.48532.41182.11062.11352.61721.1808
O31.41962.41182.10482.02330.97403.4527
H41.10152.11062.10481.77732.34073.1863
H51.09542.11352.02331.77732.83123.2079
H61.95152.61720.97402.34072.83123.5038
N72.66571.18083.45273.18633.20793.5038

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.072 C1 O3 H6 107.781
C2 C1 O3 112.233 C2 C1 H4 108.442
C2 C1 H5 109.021 O3 C1 H4 112.597
O3 C1 H5 106.409 H4 C1 H5 107.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability