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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-320.589824
Energy at 298.15K-320.598468
HF Energy-319.916190
Nuclear repulsion energy235.979456
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 MP2/3-21G*
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 3178 3024 26.57      
2 A 3174 3019 10.55      
3 A 3170 3016 29.23      
4 A 3166 3012 3.42      
5 A 3102 2951 7.05      
6 A 3093 2942 8.24      
7 A 3090 2940 11.24      
8 A 1607 1529 10.41      
9 A 1597 1519 6.38      
10 A 1589 1512 1.22      
11 A 1585 1508 0.68      
12 A 1498 1425 5.55      
13 A 1480 1408 10.24      
14 A 1439 1369 10.73      
15 A 1397 1329 20.27      
16 A 1265 1204 6.85      
17 A 1191 1133 11.80      
18 A 1183 1125 12.03      
19 A 1168 1111 25.63      
20 A 1002 953 1.45      
21 A 974 927 0.01      
22 A 943 897 42.68      
23 A 859 817 18.41      
24 A 799 760 517.47      
25 A 551 524 13.14      
26 A 477 454 1.51      
27 A 400 381 6.20      
28 A 316 301 1.28      
29 A 282 269 1.36      
30 A 230 219 0.01      
31 A 211 201 1.87      
32 A 160 152 0.36      
33 A 7 6 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 23090.7 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 21966.2 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 MP2/3-21G*
ABC
0.24166 0.06591 0.05660

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.548 -0.000 -1.366
C2 0.842 0.000 -0.310
H3 2.540 1.342 -0.511
H4 1.813 1.299 1.118
H5 0.986 2.161 -0.200
C6 1.598 1.288 0.046
H7 2.556 -1.320 -0.516
H8 1.012 -2.159 -0.205
H9 1.831 -1.289 1.114
C10 1.615 -1.279 0.042
O11 -0.414 -0.010 0.508
O12 -2.664 -0.003 0.147
N13 -1.570 0.002 -0.477

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09612.54903.07492.49382.18032.54802.49473.07542.18052.10633.55082.2972
C21.09612.17342.16042.16831.53552.17302.16832.16071.53551.49883.53562.4176
H32.54902.17341.78501.78411.09512.66133.83153.17272.83403.40495.41504.3229
H43.07492.16041.78501.77941.09413.17503.78752.58802.80072.65424.76203.9581
H52.49382.16831.78411.77941.09413.83134.31993.78783.50572.67864.25723.3570
C62.18031.53551.09511.09411.09412.83453.50562.80022.56782.43934.45483.4591
H72.54802.17302.66133.17503.83132.83451.78421.78481.09513.40395.42424.3325
H82.49472.16833.83153.78754.31993.50561.78421.77941.09402.67614.27663.3782
H93.07542.16073.17272.58803.78782.80021.78481.77941.09412.65464.77463.9706
C102.18051.53552.83402.80073.50572.56781.09511.09401.09412.43834.46633.4716
O112.10631.49883.40492.65422.67862.43933.40392.67612.65462.43832.27831.5180
O123.55083.53565.41504.76204.25724.45485.42424.27664.77464.46632.27831.2595
N132.29722.41764.32293.95813.35703.45914.33253.37823.97063.47161.51801.2595

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 110.785 H1 C2 C10 110.804
H1 C2 O11 107.509 C2 C6 H3 110.299
C2 C6 H4 109.334 C2 C6 H5 109.958
C2 C10 H7 110.271 C2 C10 H8 109.958
C2 C10 H9 109.360 C2 O11 N13 106.523
H3 C6 H4 109.239 H3 C6 H5 109.170
H4 C6 H5 108.815 C6 C2 C10 113.469
C6 C2 O11 107.006 H7 C10 H8 109.180
H7 C10 H9 109.229 H8 C10 H9 108.818
C10 C2 O11 106.943 O11 N13 O12 109.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability