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All results from a given calculation for CH3CH(CH3)ONO (Isopropyl nitrite)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-321.731318
Energy at 298.15K-321.740035
Nuclear repulsion energy238.207289
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 B3PW91/3-21G*
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 3153 3025 22.47      
2 A 3148 3020 11.65      
3 A 3146 3019 27.98      
4 A 3141 3013 1.84      
5 A 3077 2952 5.57      
6 A 3068 2943 9.29      
7 A 3065 2940 11.78      
8 A 1568 1504 16.78      
9 A 1553 1490 11.17      
10 A 1545 1482 1.22      
11 A 1538 1476 1.79      
12 A 1479 1419 130.37      
13 A 1462 1403 6.10      
14 A 1445 1386 18.92      
15 A 1397 1341 9.82      
16 A 1349 1294 48.98      
17 A 1230 1180 24.28      
18 A 1171 1124 33.37      
19 A 1167 1120 13.94      
20 A 982 942 1.78      
21 A 964 925 0.39      
22 A 945 907 17.09      
23 A 886 850 164.47      
24 A 840 806 241.34      
25 A 562 539 4.04      
26 A 473 454 0.55      
27 A 403 387 5.33      
28 A 318 305 0.15      
29 A 275 264 0.96      
30 A 210 202 0.03      
31 A 207 199 0.84      
32 A 172 165 0.50      
33 A 42 40 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 22991.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 22057.6 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 B3PW91/3-21G*
ABC
0.24540 0.06709 0.05755

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.530 -0.000 -1.362
C2 0.830 -0.000 -0.307
H3 2.536 1.316 -0.518
H4 1.818 1.290 1.115
H5 0.996 2.157 -0.204
C6 1.595 1.274 0.042
H7 2.537 -1.315 -0.518
H8 0.997 -2.157 -0.204
H9 1.818 -1.290 1.115
C10 1.596 -1.274 0.042
O11 -0.415 -0.000 0.500
O12 -2.626 0.000 0.145
N13 -1.576 -0.000 -0.464

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09712.54313.07472.49192.17492.54322.49193.07472.17492.08783.49752.2898
C21.09712.16462.15842.16561.52682.16462.16562.15841.52681.48383.48592.4116
H32.54312.16461.78371.78311.09582.63043.81143.15742.81163.38815.36864.3182
H43.07472.15841.78371.77901.09523.15703.78072.57992.78832.65134.72803.9591
H52.49192.16561.78311.77901.09483.81134.31373.78073.49182.67194.23003.3668
C62.17491.52681.09581.09521.09482.81153.49182.78832.54872.42424.41093.4553
H72.54322.16462.63043.15703.81132.81151.78311.78371.09583.38815.36894.3184
H82.49192.16563.81143.78074.31373.49181.78311.77901.09482.67214.23063.3672
H93.07472.15843.15742.57993.78072.78831.78371.77901.09522.65124.72803.9591
C102.17491.52682.81162.78833.49182.54871.09581.09481.09522.42424.41123.4555
O112.08781.48383.38812.65132.67192.42423.38812.67212.65122.42422.23921.5085
O123.49753.48595.36864.72804.23004.41095.36894.23064.72804.41122.23921.2136
N132.28982.41164.31823.95913.36683.45534.31843.36723.95913.45551.50851.2136

picture of Isopropyl nitrite state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C6 110.905 H1 C2 C10 110.907
H1 C2 O11 107.034 C2 C6 H3 110.168
C2 C6 H4 109.713 C2 C6 H5 110.307
C2 C10 H7 110.168 C2 C10 H8 110.308
C2 C10 H9 109.710 C2 O11 N13 107.400
H3 C6 H4 108.996 H3 C6 H5 108.971
H4 C6 H5 108.651 C6 C2 C10 113.158
C6 C2 O11 107.255 H7 C10 H8 108.972
H7 C10 H9 108.997 H8 C10 H9 108.652
C10 C2 O11 107.256 O11 N13 O12 110.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.234      
2 C -0.052      
3 H 0.213      
4 H 0.230      
5 H 0.227      
6 C -0.607      
7 H 0.213      
8 H 0.227      
9 H 0.230      
10 C -0.607      
11 O -0.344      
12 O -0.259      
13 N 0.296      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.413 0.000 -0.980 2.605
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.110 0.000 0.591
y 0.000 -34.327 0.000
z 0.591 0.000 -36.648
Traceless
 xyz
x -2.622 0.000 0.591
y 0.000 3.052 0.000
z 0.591 0.000 -0.430
Polar
3z2-r2-0.860
x2-y2-3.783
xy0.000
xz0.591
yz0.000


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


<r2> (average value of r2) Å2
<r2> 197.877
(<r2>)1/2 14.067