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

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-191.875128
Energy at 298.15K-191.878336
Nuclear repulsion energy101.688177
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 B3LYP/6-31+G**
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' 3819 3682 27.16      
2 A' 3483 3359 59.04      
3 A' 2992 2885 46.87      
4 A' 2234 2154 1.25      
5 A' 1505 1451 1.22      
6 A' 1442 1390 29.47      
7 A' 1237 1193 76.93      
8 A' 1055 1017 125.52      
9 A' 914 881 9.72      
10 A' 677 653 48.83      
11 A' 553 533 3.93      
12 A' 218 210 9.46      
13 A" 3018 2910 27.46      
14 A" 1254 1209 0.05      
15 A" 1025 989 4.48      
16 A" 619 597 66.83      
17 A" 327 316 0.85      
18 A" 238 229 148.72      

Unscaled Zero Point Vibrational Energy (zpe) 13304.9 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 12828.6 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 B3LYP/6-31+G**
ABC
1.16440 0.15410 0.13967

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.660 -0.507 0.000
C2 0.000 0.796 0.000
C3 0.520 1.887 0.000
O4 0.325 -1.543 0.000
H5 -1.306 -0.580 0.888
H6 -1.306 -0.580 -0.888
H7 0.988 2.846 0.000
H8 -0.133 -2.395 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.46102.66981.42931.10071.10073.73611.9595
C21.46101.20902.36182.09502.09502.27523.1936
C32.66981.20903.43623.19583.19581.06634.3317
O41.42932.36183.43622.09192.09194.43880.9668
H51.10072.09503.19582.09191.77634.21752.3361
H61.10072.09503.19582.09191.77634.21752.3361
H73.73612.27521.06634.43884.21754.21755.3590
H81.95953.19364.33170.96682.33612.33615.3590

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 178.628 C1 O4 H8 108.175
C2 C1 O4 109.589 C2 C1 H5 108.916
C2 C1 H6 108.916 C2 C3 H7 179.486
O4 C1 H5 110.885 O4 C1 H6 110.885
H5 C1 H6 107.590
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.521      
2 C 0.503      
3 C -0.330      
4 O -0.507      
5 H 0.152      
6 H 0.152      
7 H 0.202      
8 H 0.349      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.995 -0.557 0.000 2.072
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.283 5.245 0.000
y 5.245 -17.020 0.000
z 0.000 0.000 -25.482
Traceless
 xyz
x -3.032 5.245 0.000
y 5.245 7.863 0.000
z 0.000 0.000 -4.831
Polar
3z2-r2-9.662
x2-y2-7.264
xy5.245
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.843 1.369 0.000
y 1.369 7.818 0.000
z 0.000 0.000 3.958


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000