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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-190.791523
Energy at 298.15K-190.794801
Nuclear repulsion energy101.060474
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/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' 3500 3377 49.72      
2 A' 3466 3345 2.37      
3 A' 2984 2879 41.12      
4 A' 2257 2178 3.41      
5 A' 1571 1515 0.86      
6 A' 1474 1422 17.43      
7 A' 1269 1224 59.61      
8 A' 989 954 81.66      
9 A' 900 868 15.70      
10 A' 765 738 39.71      
11 A' 553 534 4.02      
12 A' 215 208 9.99      
13 A" 3000 2894 49.93      
14 A" 1272 1227 0.05      
15 A" 1037 1000 1.98      
16 A" 727 701 51.69      
17 A" 348 336 3.72      
18 A" 211 203 153.71      

Unscaled Zero Point Vibrational Energy (zpe) 13267.8 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12802.1 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 B3LYP/3-21G
ABC
1.08447 0.15537 0.13947

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.694 -0.485 0.000
C2 0.000 0.802 0.000
C3 0.575 1.861 0.000
O4 0.314 -1.549 0.000
H5 -1.346 -0.534 0.887
H6 -1.346 -0.534 -0.887
H7 1.078 2.795 0.000
H8 -0.184 -2.411 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.46222.66671.46541.10211.10213.72821.9928
C21.46221.20452.37182.09372.09372.26603.2188
C32.66671.20453.41933.19543.19541.06154.3389
O41.46542.37183.41932.13802.13804.41070.9960
H51.10212.09373.19542.13801.77474.21272.3793
H61.10212.09373.19542.13801.77474.21272.3793
H73.72822.26601.06154.41074.21274.21275.3575
H81.99283.21884.33890.99602.37932.37935.3575

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 179.819 C1 O4 H8 106.557
C2 C1 O4 108.219 C2 C1 H5 108.658
C2 C1 H6 108.658 C2 C3 H7 179.784
O4 C1 H5 111.980 O4 C1 H6 111.980
H5 C1 H6 107.254
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 C 0.141      
3 C -0.354      
4 O -0.528      
5 H 0.210      
6 H 0.210      
7 H 0.246      
8 H 0.339      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.935 -0.570 0.000 2.018
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.117 5.080 0.000
y 5.080 -16.381 0.000
z 0.000 0.000 -24.597
Traceless
 xyz
x -2.628 5.080 0.000
y 5.080 7.476 0.000
z 0.000 0.000 -4.848
Polar
3z2-r2-9.696
x2-y2-6.736
xy5.080
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.566 1.604 0.000
y 1.604 6.540 0.000
z 0.000 0.000 2.354


<r2> (average value of r2) Å2
<r2> 84.827
(<r2>)1/2 9.210