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All results from a given calculation for HOCH2CN (cyanomethanol)

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD(T)/TZVP
 hartrees
Energy at 0K-207.528127
Energy at 298.15K-207.531482
HF Energy-206.839516
Nuclear repulsion energy101.743297
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(T)/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 3831 3690        
2 A 3145 3030        
3 A 3059 2947        
4 A 2289 2204        
5 A 1509 1454        
6 A 1442 1389        
7 A 1392 1341        
8 A 1227 1182        
9 A 1082 1042        
10 A 1003 966        
11 A 894 861        
12 A 571 550        
13 A 397 383        
14 A 302 291        
15 A 210 203        

Unscaled Zero Point Vibrational Energy (zpe) 11176.5 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 10765.3 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(T)/TZVP
ABC
1.11707 0.15969 0.14483

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.575 0.594 0.038
C2 0.826 0.115 -0.007
O3 -1.517 -0.455 -0.109
H4 -0.711 1.148 0.974
H5 -0.737 1.279 -0.794
H6 -1.370 -1.083 0.609
N7 1.921 -0.280 -0.016

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48171.41751.09561.09011.94142.6450
C21.48172.41372.09532.10222.57611.1636
O31.41752.41372.09572.02160.96473.4431
H41.09562.09532.09571.77282.35453.1531
H51.09012.10222.02161.77282.81933.1783
H61.94142.57610.96472.35452.81933.4438
N72.64501.16363.44313.15313.17833.4438

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.359 C1 O3 H6 107.648
C2 C1 O3 112.702 C2 C1 H4 107.832
C2 C1 H5 108.694 O3 C1 H4 112.367
O3 C1 H5 106.717 H4 C1 H5 108.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability