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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: QCISD/cc-pVTZ

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-207.608527
Energy at 298.15K-207.611893
HF Energy-206.847212
Nuclear repulsion energy102.201887
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/cc-pVTZ
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 3882 3709 48.07      
2 A 3147 3007 3.77      
3 A 3072 2935 20.89      
4 A 2341 2237 1.16      
5 A 1517 1450 2.29      
6 A 1443 1379 46.43      
7 A 1402 1339 2.55      
8 A 1250 1194 15.96      
9 A 1119 1069 95.68      
10 A 1006 962 21.41      
11 A 906 866 17.51      
12 A 583 557 1.64      
13 A 378 361 41.52      
14 A 301 288 96.73      
15 A 216 206 11.12      

Unscaled Zero Point Vibrational Energy (zpe) 11281.1 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 10779.1 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 QCISD/cc-pVTZ
ABC
1.13344 0.16070 0.14594

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 0.589 0.038
C2 0.825 0.110 -0.006
O3 -1.509 -0.452 -0.111
H4 -0.711 1.147 0.967
H5 -0.729 1.275 -0.792
H6 -1.399 -1.064 0.619
N7 1.915 -0.277 -0.015

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48021.40651.09211.08741.93692.6360
C21.48022.40302.09362.09552.59181.1559
O31.40652.40302.08612.01290.95913.4292
H41.09212.09362.08611.76362.34133.1444
H51.08742.09552.01291.76362.81243.1623
H61.93692.59180.95912.34132.81243.4647
N72.63601.15593.42923.14443.16233.4647

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.610 C1 O3 H6 108.436
C2 C1 O3 112.667 C2 C1 H4 108.008
C2 C1 H5 108.430 O3 C1 H4 112.603
O3 C1 H5 106.934 H4 C1 H5 108.031
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability