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

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-322.285641
Energy at 298.15K-322.294170
HF Energy-321.623856
Nuclear repulsion energy234.473836
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/SDD
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 3145 3036 40.37      
2 A 3138 3029 25.12      
3 A 3131 3023 49.77      
4 A 3125 3017 10.88      
5 A 3065 2958 15.62      
6 A 3027 2922 21.64      
7 A 3022 2917 21.67      
8 A 1544 1490 14.20      
9 A 1535 1482 9.69      
10 A 1526 1474 1.68      
11 A 1522 1470 2.00      
12 A 1462 1412 10.58      
13 A 1446 1396 16.02      
14 A 1399 1351 7.81      
15 A 1391 1343 6.03      
16 A 1323 1277 77.67      
17 A 1235 1192 28.81      
18 A 1181 1140 14.06      
19 A 1157 1117 18.36      
20 A 974 940 0.18      
21 A 961 928 1.11      
22 A 930 898 31.55      
23 A 851 822 10.55      
24 A 717 692 598.08      
25 A 550 531 43.35      
26 A 455 439 25.40      
27 A 410 396 6.48      
28 A 311 300 8.81      
29 A 269 260 0.86      
30 A 210 202 2.29      
31 A 194 187 0.18      
32 A 160 155 0.56      
33 A 23 22 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 22694.9 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 21907.4 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 MP2/SDD
ABC
0.23917 0.06507 0.05558

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

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 -2.396 1.563 0.433
H4 -1.637 1.389 -1.187
H5 -0.738 2.187 0.146
C6 -1.445 1.376 -0.099
H7 -2.740 -1.095 0.519
H8 -1.302 -2.143 0.278
H9 -1.982 -1.225 -1.104
C10 -1.780 -1.195 -0.019
O11 0.422 -0.222 -0.453
O12 2.674 -0.069 -0.158
N13 1.592 0.076 0.459

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.10652.56793.10612.51662.19692.56472.52083.10862.19882.11713.61762.3775
C21.10652.19012.18682.19391.54822.18472.19162.18681.54621.51463.56962.4602
H32.56792.19011.79711.79471.10572.68143.86753.21012.86173.45115.35954.2568
H43.10612.18681.79711.79461.10393.20883.83862.63782.83892.71504.66583.8550
H52.51662.19391.79471.79461.10393.86264.36903.84063.54262.73994.10243.1602
C62.19691.54821.10571.10391.10392.85733.54222.83902.59362.48254.36613.3510
H72.56472.18472.68143.20883.86262.85731.79621.79611.10563.42135.55234.4886
H82.52082.19163.86753.83864.36903.54221.79621.79331.10292.68284.50563.6517
H93.10862.18683.21012.63783.84062.83901.79611.79331.10372.68464.88954.1122
C102.19881.54622.86172.83893.54262.59361.10561.10291.10372.44574.59613.6354
O112.11711.51463.45112.71502.73992.48253.42132.68282.68462.44572.27671.5136
O123.61763.56965.35954.66584.10244.36615.55234.50564.88954.59612.27671.2543
N132.37752.46024.25683.85503.16023.35104.48863.65174.11223.63541.51361.2543

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 110.598 H1 C2 C10 110.882
H1 C2 O11 106.712 C2 C6 H3 110.112
C2 C6 H4 109.957 C2 C6 H5 110.517
C2 C10 H7 109.830 C2 C10 H8 110.529
C2 C10 H9 110.107 C2 O11 N13 108.668
H3 C6 H4 108.840 H3 C6 H5 108.629
H4 C6 H5 108.745 C6 C2 C10 113.892
C6 C2 O11 108.294 H7 C10 H8 108.842
H7 C10 H9 108.776 H8 C10 H9 108.717
C10 C2 O11 106.075 O11 N13 O12 110.329
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability