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

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-323.277531
Energy at 298.15K-323.286193
Nuclear repulsion energy240.230573
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 PBEPBE/6-31G*
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 3081 3037 22.12      
2 A 3079 3035 14.98      
3 A 3074 3030 40.42      
4 A 3068 3024 0.18      
5 A 2995 2952 13.59      
6 A 2992 2949 15.33      
7 A 2975 2933 13.94      
8 A 1718 1693 272.52      
9 A 1490 1469 7.09      
10 A 1476 1455 7.04      
11 A 1467 1446 0.32      
12 A 1462 1441 0.64      
13 A 1393 1373 6.06      
14 A 1378 1359 16.45      
15 A 1336 1317 6.37      
16 A 1331 1312 30.07      
17 A 1179 1162 10.71      
18 A 1138 1121 8.96      
19 A 1134 1118 30.33      
20 A 943 930 5.83      
21 A 927 914 0.01      
22 A 916 902 1.16      
23 A 876 864 58.13      
24 A 765 754 331.66      
25 A 564 556 37.53      
26 A 460 453 11.54      
27 A 419 413 4.05      
28 A 311 306 3.52      
29 A 276 272 1.07      
30 A 213 210 1.62      
31 A 206 203 0.04      
32 A 186 183 0.13      
33 A 55 55 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 22440.7 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 22119.8 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 PBEPBE/6-31G*
ABC
0.24597 0.06860 0.05841

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.534 0.000 -1.365
C2 0.817 -0.000 -0.294
H3 2.530 1.318 -0.515
H4 1.815 1.317 1.124
H5 0.986 2.170 -0.211
C6 1.581 1.279 0.047
H7 2.530 -1.318 -0.515
H8 0.986 -2.170 -0.211
H9 1.815 -1.316 1.124
C10 1.581 -1.278 0.047
O11 -0.423 -0.000 0.465
O12 -2.590 -0.000 0.152
N13 -1.566 0.000 -0.452

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.10732.53853.09372.49852.17342.53862.49853.09372.17342.06483.47282.2897
C21.10732.17282.17772.17791.52812.17282.17782.17771.52801.45373.43592.3880
H32.53852.17281.78841.78921.10352.63573.82603.18412.82083.37905.32884.3033
H43.09372.17771.78841.78851.10333.18413.82422.63312.81962.67904.69913.9559
H52.49852.17791.78921.78851.10223.82604.33933.82423.50862.67414.19853.3583
C62.17341.52811.10351.10331.10222.82083.50862.81962.55692.41364.36383.4332
H72.53862.17282.63573.18413.82602.82081.78921.78841.10353.37905.32904.3035
H82.49852.17783.82603.82424.33933.50861.78921.78851.10222.67404.19883.3586
H93.09372.17773.18412.63313.82422.81961.78841.78851.10332.67904.69933.9561
C102.17341.52802.82082.81963.50862.55691.10351.10221.10332.41364.36403.4334
O112.06481.45373.37902.67902.67412.41363.37902.67402.67902.41362.18941.4653
O123.47283.43595.32884.69914.19854.36385.32904.19884.69934.36402.18941.1890
N132.28972.38804.30333.95593.35833.43324.30353.35863.95613.43341.46531.1890

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 110.095 H1 C2 C10 110.097
H1 C2 O11 106.677 C2 C6 H3 110.269
C2 C6 H4 110.668 C2 C6 H5 110.749
C2 C10 H7 110.269 C2 C10 H8 110.749
C2 C10 H9 110.668 C2 O11 N13 109.784
H3 C6 H4 108.269 H3 C6 H5 108.429
H4 C6 H5 108.377 C6 C2 C10 113.577
C6 C2 O11 108.060 H7 C10 H8 108.430
H7 C10 H9 108.268 H8 C10 H9 108.378
C10 C2 O11 108.059 O11 N13 O12 110.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.158      
2 C 0.083      
3 H 0.164      
4 H 0.173      
5 H 0.173      
6 C -0.485      
7 H 0.164      
8 H 0.173      
9 H 0.173      
10 C -0.485      
11 O -0.319      
12 O -0.212      
13 N 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.355 0.000 -0.673 2.449
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.767 -0.000 0.194
y -0.000 -34.505 0.000
z 0.194 0.000 -36.574
Traceless
 xyz
x -2.227 -0.000 0.194
y -0.000 2.666 0.000
z 0.194 0.000 -0.438
Polar
3z2-r2-0.876
x2-y2-3.262
xy-0.000
xz0.194
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.493 0.000 0.035
y 0.000 6.262 0.000
z 0.035 0.000 5.877


<r2> (average value of r2) Å2
<r2> 195.416
(<r2>)1/2 13.979