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All results from a given calculation for HOCH2CN (cyanomethanol)

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD/6-31G**
 hartrees
Energy at 0K-207.399150
Energy at 298.15K-207.402518
HF Energy-206.772560
Nuclear repulsion energy101.737558
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 CCSD/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 3903 3640 33.26      
2 A 3199 2983 7.52      
3 A 3113 2903 26.51      
4 A 2359 2200 2.87      
5 A 1552 1447 0.80      
6 A 1453 1355 52.45      
7 A 1419 1323 2.89      
8 A 1252 1167 19.31      
9 A 1123 1047 90.99      
10 A 1014 946 26.71      
11 A 917 855 22.15      
12 A 578 539 3.05      
13 A 392 366 82.96      
14 A 309 288 78.84      
15 A 211 197 8.29      

Unscaled Zero Point Vibrational Energy (zpe) 11396.0 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 10627.9 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 CCSD/6-31G**
ABC
1.11612 0.15963 0.14488

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 0.593 0.037
C2 0.827 0.115 -0.006
O3 -1.508 -0.460 -0.114
H4 -0.722 1.151 0.967
H5 -0.741 1.277 -0.794
H6 -1.426 -1.044 0.647
N7 1.924 -0.280 -0.014

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48501.41241.09351.08831.94212.6512
C21.48502.40682.10142.10422.61651.1664
O31.41242.40682.09332.01600.96333.4382
H41.09352.10142.09331.76552.32793.1636
H51.08832.10422.01601.76552.81643.1833
H61.94212.61650.96332.32792.81643.4995
N72.65121.16643.43823.16363.18333.4995

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.393 C1 O3 H6 108.179
C2 C1 O3 112.309 C2 C1 H4 108.203
C2 C1 H5 108.732 O3 C1 H4 112.678
O3 C1 H5 106.732 H4 C1 H5 108.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability