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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-191.775150
Energy at 298.15K-191.778389
Nuclear repulsion energy102.200150
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 B1B95/6-31G**
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' 3868 3693 21.06      
2 A' 3506 3347 52.18      
3 A' 2993 2857 48.83      
4 A' 2263 2161 2.23      
5 A' 1511 1443 2.33      
6 A' 1459 1393 28.65      
7 A' 1250 1194 86.68      
8 A' 1108 1058 105.75      
9 A' 927 885 10.33      
10 A' 679 648 37.38      
11 A' 559 533 3.23      
12 A' 221 211 6.58      
13 A" 3020 2883 43.44      
14 A" 1256 1200 0.25      
15 A" 1027 980 4.18      
16 A" 621 593 48.93      
17 A" 337 322 0.03      
18 A" 239 228 137.86      

Unscaled Zero Point Vibrational Energy (zpe) 13421.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 12815.0 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 B1B95/6-31G**
ABC
1.18296 0.15545 0.14101

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.651 -0.513 0.000
C2 0.000 0.791 0.000
C3 0.513 1.882 0.000
O4 0.326 -1.534 0.000
H5 -1.305 -0.576 0.883
H6 -1.305 -0.576 -0.883
H7 0.973 2.842 0.000
H8 -0.142 -2.375 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.45712.66251.41281.10081.10083.72751.9305
C21.45711.20552.34722.08542.08542.27063.1690
C32.66251.20553.42063.18143.18141.06514.3069
O41.41282.34723.42062.08752.08754.42370.9627
H51.10082.08543.18142.08751.76684.20102.3178
H61.10082.08543.18142.08751.76684.20102.3178
H73.72752.27061.06514.42374.20104.20105.3353
H81.93053.16904.30690.96272.31782.31785.3353

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 178.641 C1 O4 H8 107.197
C2 C1 O4 109.730 C2 C1 H5 108.422
C2 C1 H6 108.422 C2 C3 H7 179.595
O4 C1 H5 111.699 O4 C1 H6 111.699
H5 C1 H6 106.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.073      
2 C 0.261      
3 C -0.426      
4 O -0.529      
5 H 0.132      
6 H 0.132      
7 H 0.180      
8 H 0.322      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.764 -0.642 0.000 1.877
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.128 4.669 0.000
y 4.669 -15.967 0.000
z 0.000 0.000 -24.263
Traceless
 xyz
x -3.013 4.669 0.000
y 4.669 7.728 0.000
z 0.000 0.000 -4.715
Polar
3z2-r2-9.430
x2-y2-7.160
xy4.669
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.875 1.484 0.000
y 1.484 6.962 0.000
z 0.000 0.000 2.906


<r2> (average value of r2) Å2
<r2> 83.869
(<r2>)1/2 9.158