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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-322.279330
Energy at 298.15K-322.287857
HF Energy-321.622990
Nuclear repulsion energy234.449119
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/LANL2DZ
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 3146 3030 41.41      
2 A 3139 3023 25.59      
3 A 3132 3017 50.48      
4 A 3126 3011 11.08      
5 A 3067 2954 15.87      
6 A 3028 2916 21.86      
7 A 3023 2912 21.95      
8 A 1544 1487 14.16      
9 A 1535 1478 9.67      
10 A 1527 1470 1.65      
11 A 1522 1466 2.01      
12 A 1463 1409 10.60      
13 A 1446 1393 15.99      
14 A 1400 1348 7.84      
15 A 1392 1341 6.41      
16 A 1323 1274 76.14      
17 A 1235 1190 28.89      
18 A 1181 1137 14.05      
19 A 1157 1114 18.32      
20 A 974 938 0.19      
21 A 961 926 1.10      
22 A 931 896 31.82      
23 A 852 820 10.52      
24 A 718 691 598.26      
25 A 551 530 42.70      
26 A 455 438 25.03      
27 A 410 395 6.49      
28 A 311 300 8.61      
29 A 269 259 0.90      
30 A 210 202 2.25      
31 A 193 186 0.17      
32 A 160 154 0.56      
33 A 22 22 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 22701.3 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 21863.7 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/LANL2DZ
ABC
0.23909 0.06505 0.05556

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.594 0.005 1.391
C2 -0.863 0.004 0.318
H3 -2.398 1.562 0.433
H4 -1.638 1.389 -1.187
H5 -0.740 2.188 0.146
C6 -1.446 1.376 -0.099
H7 -2.740 -1.096 0.519
H8 -1.301 -2.144 0.278
H9 -1.981 -1.226 -1.104
C10 -1.779 -1.195 -0.019
O11 0.422 -0.220 -0.452
O12 2.675 -0.069 -0.159
N13 1.593 0.076 0.460

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.10652.56823.10652.51712.19722.56512.52123.10892.19902.11703.61832.3780
C21.10652.19062.18732.19441.54862.18512.19222.18731.54661.51463.56992.4604
H32.56822.19061.79721.79481.10582.68163.86803.21072.86213.45155.36094.2582
H43.10652.18731.79721.79461.10403.20933.83962.63872.83962.71564.66703.8564
H52.51712.19441.79481.79461.10403.86314.37003.84153.54342.74044.10453.1624
C62.19721.54861.10581.10401.10402.85773.54302.83972.59412.48294.36753.3525
H72.56512.18512.68163.20933.86312.85771.79631.79621.10573.42195.55274.4889
H82.52122.19223.86803.83964.37003.54301.79631.79341.10302.68374.50573.6515
H93.10892.18733.21072.63873.84152.83971.79621.79341.10382.68534.88944.1123
C102.19901.54662.86212.83963.54342.59411.10571.10301.10382.44634.59623.6354
O112.11701.51463.45152.71562.74042.48293.42192.68372.68532.44632.27651.5131
O123.61833.56995.36094.66704.10454.36755.55274.50574.88944.59622.27651.2546
N132.37802.46044.25823.85643.16243.35254.48893.65154.11233.63541.51311.2546

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 110.592 H1 C2 C10 110.875
H1 C2 O11 106.710 C2 C6 H3 110.113
C2 C6 H4 109.962 C2 C6 H5 110.524
C2 C10 H7 109.832 C2 C10 H8 110.539
C2 C10 H9 110.109 C2 O11 N13 108.714
H3 C6 H4 108.833 H3 C6 H5 108.627
H4 C6 H5 108.739 C6 C2 C10 113.885
C6 C2 O11 108.302 H7 C10 H8 108.838
H7 C10 H9 108.772 H8 C10 H9 108.711
C10 C2 O11 106.092 O11 N13 O12 110.334
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability