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All results from a given calculation for HOCH2CN (cyanomethanol)

using model chemistry: CCD/3-21G

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 CCD/3-21G
Rotational Constants (cm-1) from geometry optimized at CCD/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-206.031895
Energy at 298.15K-206.035362
HF Energy-205.607711
Nuclear repulsion energy100.338455
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 CCD/3-21G
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 3508 3411 2.49      
2 A 3119 3032 5.48      
3 A 3037 2953 22.93      
4 A 2319 2255 6.14      
5 A 1574 1530 3.08      
6 A 1434 1394 26.17      
7 A 1417 1378 0.63      
8 A 1277 1242 20.62      
9 A 1026 998 4.51      
10 A 990 962 73.40      
11 A 884 859 27.95      
12 A 590 574 2.12      
13 A 441 429 52.48      
14 A 342 332 125.95      
15 A 229 223 6.60      

Unscaled Zero Point Vibrational Energy (zpe) 11093.5 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 10786.2 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 CCD/3-21G
ABC
1.05974 0.15660 0.14158

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.561 0.614 0.037
C2 0.841 0.122 0.003
O3 -1.538 -0.467 -0.116
H4 -0.712 1.192 0.962
H5 -0.731 1.280 -0.816
H6 -1.455 -1.062 0.674
N7 1.932 -0.299 -0.019

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 N7
C11.48631.46511.10101.09532.00312.6558
C21.48632.45342.11562.11742.66841.1698
O31.46512.45342.14422.04740.99243.4752
H41.10102.11562.14421.78002.39073.1901
H51.09532.11742.04741.78002.86813.1973
H62.00312.66840.99242.39072.86813.5397
N72.65581.16983.47523.19013.19733.5397

picture of cyanomethanol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N7 178.215 C1 O3 H6 107.644
C2 C1 O3 112.465 C2 C1 H4 108.796
C2 C1 H5 109.275 O3 C1 H4 112.586
O3 C1 H5 105.276 H4 C1 H5 108.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability