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All results from a given calculation for C3H4O (2-Propyn-1-ol)

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-191.779978
Energy at 298.15K-191.783163
HF Energy-191.545257
Nuclear repulsion energy102.123434
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 B2PLYP/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' 3842 3686 30.78      
2 A' 3491 3349 54.89      
3 A' 3016 2894 42.18      
4 A' 2197 2108 1.59      
5 A' 1522 1460 0.73      
6 A' 1464 1405 26.03      
7 A' 1257 1206 72.14      
8 A' 1067 1023 109.50      
9 A' 918 880 9.16      
10 A' 691 663 36.69      
11 A' 554 532 3.11      
12 A' 211 202 7.86      
13 A" 3045 2921 26.41      
14 A" 1268 1217 0.08      
15 A" 1041 999 4.77      
16 A" 642 616 46.62      
17 A" 315 302 2.61      
18 A" 205 197 121.89      

Unscaled Zero Point Vibrational Energy (zpe) 13372.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 12829.1 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 B2PLYP/cc-pVTZ
ABC
1.16762 0.15561 0.14092

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.661 -0.510 0.000
C2 0.000 0.793 0.000
C3 0.525 1.877 0.000
O4 0.318 -1.534 0.000
H5 -1.306 -0.565 0.882
H6 -1.306 -0.565 -0.882
H7 1.015 2.816 0.000
H8 -0.132 -2.381 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.46112.66471.41691.09441.09443.72441.9445
C21.46111.20372.34882.08092.08092.26333.1770
C32.66471.20373.41663.17713.17711.05984.3079
O41.41692.34883.41662.08692.08694.40530.9595
H51.09442.08093.17712.08691.76464.19542.3352
H61.09442.08093.17712.08691.76464.19542.3352
H73.72442.26331.05984.40534.19544.19545.3222
H81.94453.17704.30790.95952.33522.33525.3222

picture of 2-Propyn-1-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 178.955 C1 O4 H8 108.283
C2 C1 O4 109.387 C2 C1 H5 108.177
C2 C1 H6 108.177 C2 C3 H7 178.277
O4 C1 H5 111.760 O4 C1 H6 111.760
H5 C1 H6 107.444
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.022      
2 C -0.047      
3 C -0.160      
4 O -0.355      
5 H 0.080      
6 H 0.080      
7 H 0.171      
8 H 0.209      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.720 1.261 0.000
y 1.261 7.527 0.000
z 0.000 0.000 3.811


<r2> (average value of r2) Å2
<r2> 84.361
(<r2>)1/2 9.185