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

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-322.855447
Energy at 298.15K-322.864349
HF Energy-321.822520
Nuclear repulsion energy243.183756
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 MP2/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3180 3022 23.11      
2 A 3178 3020 13.46      
3 A 3175 3017 38.25      
4 A 3169 3011 0.23      
5 A 3101 2946 8.90      
6 A 3080 2926 10.24      
7 A 3077 2924 14.18      
8 A 1659 1577 154.78      
9 A 1527 1451 6.79      
10 A 1516 1440 6.76      
11 A 1505 1430 0.57      
12 A 1501 1426 0.26      
13 A 1434 1363 21.08      
14 A 1425 1354 23.08      
15 A 1402 1332 28.56      
16 A 1379 1310 2.72      
17 A 1227 1166 18.99      
18 A 1190 1131 25.11      
19 A 1189 1130 8.17      
20 A 1008 958 17.40      
21 A 960 912 0.04      
22 A 945 898 0.41      
23 A 915 869 85.87      
24 A 821 780 545.52      
25 A 612 582 51.52      
26 A 488 464 10.82      
27 A 435 413 5.27      
28 A 323 307 4.79      
29 A 300 285 0.88      
30 A 234 222 1.94      
31 A 218 207 0.02      
32 A 187 177 0.26      
33 A 24 23 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 23191.6 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 22036.7 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 MP2/6-311G**
ABC
0.25053 0.07057 0.05992

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.537 0.000 -1.361
C2 -0.804 -0.000 -0.298
H3 -2.510 -1.308 -0.496
H4 -1.775 -1.295 1.123
H5 -0.970 -2.150 -0.208
C6 -1.563 -1.270 0.051
H7 -2.508 1.311 -0.495
H8 -0.967 2.151 -0.207
H9 -1.774 1.296 1.124
C10 -1.561 1.271 0.051
O11 0.431 -0.001 0.448
O12 2.556 -0.000 0.150
N13 1.531 0.000 -0.441

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09602.52083.06342.47852.15862.52082.47833.06332.15852.05153.44222.2634
C21.09602.15892.15442.15871.51992.15892.15882.15441.51991.44253.38972.3392
H32.52082.15891.77801.77841.09412.61913.79843.15372.80183.35345.27164.2477
H43.06342.15441.77801.77561.09373.15373.78082.59042.78862.64494.62403.8799
H52.47852.15871.77841.77561.09273.79844.30113.78083.48142.64794.14533.3067
C62.15861.51991.09411.09371.09272.80193.48142.78862.54032.39594.31113.3801
H72.52082.15892.61913.15373.79842.80191.77841.77811.09413.35355.27074.2467
H82.47832.15883.79843.78084.30113.48141.77841.77561.09272.64824.14343.3046
H93.06332.15443.15372.59043.78082.78861.77811.77561.09372.64504.62303.8788
C102.15851.51992.80182.78863.48142.54031.09411.09271.09372.39614.31003.3789
O112.05151.44253.35342.64492.64792.39593.35352.64822.64502.39612.14621.4143
O123.44223.38975.27164.62404.14534.31115.27074.14344.62304.31002.14621.1830
N132.26342.33924.24773.87993.30673.38014.24673.30463.87883.37891.41431.1830

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 110.162 H1 C2 C10 110.155
H1 C2 O11 107.040 C2 C6 H3 110.299
C2 C6 H4 109.968 C2 C6 H5 110.369
C2 C10 H7 110.301 C2 C10 H8 110.368
C2 C10 H9 109.967 C2 O11 N13 109.929
H3 C6 H4 108.725 H3 C6 H5 108.825
H4 C6 H5 108.610 C6 C2 C10 113.375
C6 C2 O11 107.926 H7 C10 H8 108.823
H7 C10 H9 108.727 H8 C10 H9 108.611
C10 C2 O11 107.936 O11 N13 O12 111.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability