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All results from a given calculation for C3H8O2 (Hydroperoxide, 1-methylethyl)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-266.413290
Energy at 298.15K-266.422729
Nuclear repulsion energy194.081623
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 HF/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 3825 3452 44.14      
2 A 3301 2980 16.84      
3 A 3289 2969 50.08      
4 A 3281 2961 31.10      
5 A 3267 2949 1.33      
6 A 3256 2939 3.54      
7 A 3213 2900 16.77      
8 A 3208 2896 12.03      
9 A 1685 1521 11.73      
10 A 1664 1502 1.56      
11 A 1661 1499 4.35      
12 A 1651 1491 2.44      
13 A 1579 1425 10.73      
14 A 1562 1410 15.62      
15 A 1522 1374 13.01      
16 A 1501 1355 5.45      
17 A 1456 1314 87.82      
18 A 1322 1193 17.68      
19 A 1267 1143 31.41      
20 A 1238 1118 12.92      
21 A 1191 1075 3.40      
22 A 1061 957 2.14      
23 A 1027 927 0.27      
24 A 976 881 17.22      
25 A 861 777 5.23      
26 A 516 466 9.91      
27 A 481 434 5.67      
28 A 373 337 2.39      
29 A 298 269 5.23      
30 A 259 234 0.13      
31 A 225 203 0.45      
32 A 146 132 91.94      
33 A 132 119 97.03      

Unscaled Zero Point Vibrational Energy (zpe) 26147.4 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 23600.6 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 HF/3-21G*
ABC
0.26168 0.12654 0.09432

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.900 -0.114 -0.205
H2 -2.502 -0.288 0.536
O3 -0.661 -0.691 0.334
C4 1.672 -0.778 0.016
H5 1.816 -0.767 1.089
H6 1.572 -1.805 -0.310
H7 2.541 -0.339 -0.459
C8 0.473 1.465 0.128
H9 0.657 1.493 1.195
H10 1.267 1.999 -0.380
H11 -0.469 1.953 -0.078
C12 0.419 0.017 -0.347
H13 0.225 -0.033 -1.407

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O10.97061.46883.64043.98873.86304.45462.86963.32893.81162.51712.32742.4427
H20.97061.89554.23554.37984.42875.14143.47743.68624.50353.08773.06733.3583
O31.46881.89552.35672.59092.57723.31812.44432.69213.38552.68221.45972.0611
C43.64044.23552.35671.08301.08211.08342.54622.75332.83403.47181.52772.1624
H53.98874.37982.59091.08301.75941.76272.77682.54223.17943.73922.15103.0501
H63.86304.42872.57721.08211.75941.76393.47733.73913.81664.28252.15602.4814
H74.45465.14143.31811.08341.76271.76392.80713.10612.66393.80312.15492.5220
C82.86963.47742.44432.54622.77683.47732.80711.08381.08361.08051.52472.1592
H93.32893.68622.69212.75332.54223.73913.10611.08381.76361.76092.14783.0479
H103.81164.50353.38552.83403.17943.81662.66391.08361.76361.76332.15602.5043
H112.51713.08772.68223.47183.73924.28253.80311.08051.76091.76332.14702.4885
C122.32743.06731.45971.52772.15102.15602.15491.52472.14782.15602.14701.0795
H132.44273.35832.06112.16243.05012.48142.52202.15923.04792.50432.48851.0795

picture of Hydroperoxide, 1-methylethyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O3 C12 105.255 H2 O1 O3 99.958
O3 C12 C4 104.143 O3 C12 C8 109.954
O3 C12 H13 107.584 C4 C12 C8 113.058
C4 C12 H13 110.907 H5 C4 H6 108.707
H5 C4 H7 108.914 H5 C4 C12 109.788
H6 C4 H7 109.085 H6 C4 C12 110.239
H7 C4 C12 110.076 C8 C12 H13 110.853
H9 C8 H10 108.916 H9 C8 H11 108.896
H9 C8 C12 109.694 H10 C8 H11 109.132
H10 C8 C12 110.358 H11 C8 C12 109.818
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.417 -0.493    
2 H 0.410 0.473    
3 O -0.383 -0.358    
4 C -0.595 -0.455    
5 H 0.218 0.128    
6 H 0.226 0.119    
7 H 0.205 0.106    
8 C -0.600 -0.370    
9 H 0.207 0.101    
10 H 0.195 0.072    
11 H 0.234 0.102    
12 C 0.068 0.572    
13 H 0.232 0.003    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.462 0.658 0.552 0.975
CHELPG 0.452 0.649 0.571 0.975
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.964 -0.066 -3.633
y -0.066 -32.615 0.071
z -3.633 0.071 -31.188
Traceless
 xyz
x 4.938 -0.066 -3.633
y -0.066 -3.539 0.071
z -3.633 0.071 -1.399
Polar
3z2-r2-2.798
x2-y25.651
xy-0.066
xz-3.633
yz0.071


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.115 -0.269 -0.128
y -0.269 4.917 -0.177
z -0.128 -0.177 4.761


<r2> (average value of r2) Å2
<r2> 133.154
(<r2>)1/2 11.539