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

using model chemistry: MP2/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-62.007703
Energy at 298.15K-62.016317
HF Energy-61.338104
Nuclear repulsion energy131.664774
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/CEP-121G
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 3096 3022 45.01      
2 A 3091 3017 20.63      
3 A 3082 3008 60.22      
4 A 3075 3001 4.80      
5 A 3015 2943 11.35      
6 A 2974 2903 20.64      
7 A 2971 2899 22.68      
8 A 1529 1492 5.53      
9 A 1525 1489 12.59      
10 A 1513 1477 2.47      
11 A 1508 1472 0.01      
12 A 1455 1420 8.56      
13 A 1439 1405 13.76      
14 A 1387 1354 10.80      
15 A 1379 1346 0.28      
16 A 1336 1304 98.03      
17 A 1231 1201 22.91      
18 A 1173 1145 9.91      
19 A 1148 1121 13.69      
20 A 962 939 0.03      
21 A 947 924 0.42      
22 A 928 906 35.07      
23 A 852 832 21.46      
24 A 744 726 628.80      
25 A 552 539 25.62      
26 A 454 443 12.05      
27 A 405 395 7.33      
28 A 308 301 5.83      
29 A 269 262 0.68      
30 A 209 204 2.32      
31 A 201 196 0.04      
32 A 167 163 0.39      
33 A 28 27 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 22476.0 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 21936.6 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/CEP-121G
ABC
0.23718 0.06485 0.05548

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.540 -0.000 1.384
C2 0.831 0.000 0.318
H3 2.546 -1.352 0.493
H4 1.789 -1.324 -1.135
H5 0.981 -2.183 0.214
C6 1.586 -1.302 -0.052
H7 2.545 1.352 0.493
H8 0.980 2.183 0.214
H9 1.789 1.324 -1.135
C10 1.586 1.302 -0.052
O11 -0.464 -0.000 -0.475
O12 -2.716 -0.000 -0.156
N13 -1.621 0.000 0.478

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.10502.57753.10762.51522.20242.57752.51523.10762.20242.11253.60182.3437
C21.10502.19002.18652.19011.54972.19012.19012.18651.54971.51843.57892.4580
H32.57752.19001.79501.79361.10412.70393.87553.22202.87393.43775.47104.3808
H43.10762.18651.79501.79191.10223.22193.84292.64762.84762.69494.79663.9982
H52.51522.19011.79361.79191.10153.87554.36513.84293.54672.70604.30873.4064
C62.20241.54971.10411.10221.10152.87393.54672.84762.60382.46484.49623.5022
H72.57752.19012.70393.22193.87552.87391.79361.79501.10413.43775.47084.3806
H82.51522.19013.87553.84294.36513.54671.79361.79191.10142.70614.30843.4061
H93.10762.18653.22202.64763.84292.84761.79501.79191.10222.69494.79633.9980
C102.20241.54972.87392.84763.54672.60381.10411.10141.10222.46494.49603.5020
O112.11251.51843.43772.69492.70602.46483.43772.70612.69492.46492.27491.4994
O123.60183.57895.47104.79664.30874.49625.47084.30844.79634.49602.27491.2648
N132.34372.45804.38083.99823.40643.50224.38063.40613.99803.50201.49941.2648

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 111.016 H1 C2 C10 111.016
H1 C2 O11 106.197 C2 C6 H3 110.093
C2 C6 H4 109.930 C2 C6 H5 110.252
C2 C10 H7 110.095 C2 C10 H8 110.253
C2 C10 H9 109.929 C2 O11 N13 109.071
H3 C6 H4 108.896 H3 C6 H5 108.822
H4 C6 H5 108.813 C6 C2 C10 114.301
C6 C2 O11 106.903 H7 C10 H8 108.822
H7 C10 H9 108.895 H8 C10 H9 108.812
C10 C2 O11 106.906 O11 N13 O12 110.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability