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

using model chemistry: B1B95/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/CEP-31G
 hartrees
Energy at 0K-62.743797
Energy at 298.15K-62.752442
Nuclear repulsion energy133.664372
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/CEP-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 3186 3051 60.33      
2 A 3180 3045 16.29      
3 A 3179 3044 68.70      
4 A 3174 3039 10.73      
5 A 3104 2972 12.81      
6 A 3078 2947 17.11      
7 A 3076 2945 23.13      
8 A 1606 1537 202.33      
9 A 1514 1450 14.61      
10 A 1499 1435 10.72      
11 A 1495 1432 1.31      
12 A 1486 1423 2.23      
13 A 1431 1370 17.64      
14 A 1420 1359 27.99      
15 A 1368 1310 3.17      
16 A 1341 1284 42.68      
17 A 1210 1158 19.97      
18 A 1179 1129 9.89      
19 A 1149 1100 34.27      
20 A 961 920 0.10      
21 A 955 914 23.62      
22 A 945 905 4.38      
23 A 893 855 185.47      
24 A 859 823 286.69      
25 A 583 559 1.74      
26 A 466 446 0.90      
27 A 407 390 5.48      
28 A 312 299 0.08      
29 A 267 256 0.79      
30 A 203 194 0.64      
31 A 197 189 0.07      
32 A 171 164 0.70      
33 A 30 29 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 22961.3 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 21985.4 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/CEP-31G
ABC
0.24400 0.06697 0.05714

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.572 -0.000 1.386
C2 -0.843 0.000 0.318
H3 -2.560 1.328 0.475
H4 -1.797 1.309 -1.141
H5 -1.011 2.178 0.207
C6 -1.597 1.286 -0.059
H7 -2.561 -1.326 0.475
H8 -1.013 -2.178 0.207
H9 -1.799 -1.308 -1.141
C10 -1.598 -1.285 -0.059
O11 0.438 -0.001 -0.443
O12 2.631 0.000 -0.165
N13 1.571 -0.000 0.457

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.10192.55803.09852.51542.18892.55802.51543.09852.18902.08843.55862.3352
C21.10192.17582.18002.18731.53722.17582.18732.18001.53721.48943.50772.4178
H32.55802.17581.78751.78761.10212.65313.84093.18402.83453.40465.39624.3387
H43.09852.18001.78751.78641.10083.18403.81972.61692.81752.68304.72003.9511
H52.51542.18731.78761.78641.10033.84094.35603.81973.52252.69574.25973.3870
C62.18891.53721.10211.10081.10032.83453.52252.81752.57052.43754.42053.4574
H72.55802.17582.65313.18403.84092.83451.78761.78751.10213.40455.39714.3392
H82.51542.18733.84093.81974.35603.52251.78761.78641.10032.69554.26173.3881
H93.09852.18003.18402.61693.81972.81751.78751.78641.10082.68294.72113.9517
C102.18901.53722.83452.81753.52252.57051.10211.10031.10082.43734.42173.4580
O112.08841.48943.40462.68302.69572.43753.40452.69552.68292.43732.21121.4466
O123.55863.50775.39624.72004.25974.42055.39714.26174.72114.42172.21121.2293
N132.33522.41784.33873.95113.38703.45744.33923.38813.95173.45801.44661.2293

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 111.002 H1 C2 C10 111.003
H1 C2 O11 106.440 C2 C6 H3 109.954
C2 C6 H4 110.360 C2 C6 H5 110.968
C2 C10 H7 109.953 C2 C10 H8 110.968
C2 C10 H9 110.360 C2 O11 N13 110.865
H3 C6 H4 108.473 H3 C6 H5 108.516
H4 C6 H5 108.505 C6 C2 C10 113.460
C6 C2 O11 107.275 H7 C10 H8 108.516
H7 C10 H9 108.473 H8 C10 H9 108.505
C10 C2 O11 107.268 O11 N13 O12 111.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.187      
2 C -0.044      
3 H 0.136      
4 H 0.154      
5 H 0.170      
6 C -0.399      
7 H 0.136      
8 H 0.170      
9 H 0.154      
10 C -0.399      
11 O -0.213      
12 O -0.069      
13 N 0.016      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.516 0.001 1.127 3.692
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.785 -0.001 0.446
y -0.001 -34.124 -0.000
z 0.446 -0.000 -36.961
Traceless
 xyz
x -4.243 -0.001 0.446
y -0.001 4.249 -0.000
z 0.446 -0.000 -0.006
Polar
3z2-r2-0.013
x2-y2-5.661
xy-0.001
xz0.446
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.215 0.001 0.049
y 0.001 5.731 -0.000
z 0.049 -0.000 5.419


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