return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/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=FULL/6-311G*
 hartrees
Energy at 0K-322.915569
Energy at 298.15K-322.924464
HF Energy-321.812759
Nuclear repulsion energy243.493884
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=FULL/6-311G*
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 3186 3018 23.33      
2 A 3184 3016 13.00      
3 A 3181 3013 37.28      
4 A 3175 3007 0.35      
5 A 3109 2945 8.10      
6 A 3086 2923 10.00      
7 A 3083 2920 13.99      
8 A 1660 1572 153.39      
9 A 1546 1465 11.77      
10 A 1534 1453 6.96      
11 A 1522 1441 1.08      
12 A 1519 1439 0.78      
13 A 1453 1376 19.82      
14 A 1442 1366 29.07      
15 A 1407 1332 32.10      
16 A 1395 1322 2.36      
17 A 1238 1173 20.02      
18 A 1198 1134 8.28      
19 A 1196 1133 27.05      
20 A 1011 958 15.03      
21 A 970 919 0.08      
22 A 953 902 0.86      
23 A 920 872 92.79      
24 A 831 787 549.65      
25 A 620 587 41.50      
26 A 495 469 8.45      
27 A 438 414 5.21      
28 A 329 312 3.95      
29 A 302 286 1.08      
30 A 235 222 1.74      
31 A 224 213 0.02      
32 A 187 178 0.24      
33 A 7 7 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 23319.6 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 22086.0 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=FULL/6-311G*
ABC
0.25099 0.07079 0.06007

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.537 0.000 -1.361
C2 -0.806 -0.000 -0.299
H3 -2.508 -1.314 -0.488
H4 -1.767 -1.298 1.124
H5 -0.968 -2.148 -0.210
C6 -1.559 -1.269 0.052
H7 -2.508 1.314 -0.488
H8 -0.967 2.148 -0.210
H9 -1.766 1.299 1.124
C10 -1.559 1.269 0.052
O11 0.431 -0.000 0.445
O12 2.553 -0.000 0.150
N13 1.527 -0.000 -0.439

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09512.52493.06142.47482.15642.52492.47483.06142.15642.04883.43962.2602
C21.09512.15862.15272.15611.51662.15862.15602.15271.51661.44363.38902.3371
H32.52492.15861.77421.77391.09292.62783.79953.15792.80413.35185.26794.2440
H43.06142.15271.77421.77181.09243.15793.78112.59702.78992.64114.61453.8699
H52.47482.15611.77391.77181.09153.79954.29633.78113.47762.64564.14013.3000
C62.15641.51661.09291.09241.09152.80413.47762.78992.53762.39244.30453.3725
H72.52492.15862.62783.15793.79952.80411.77391.77421.09293.35185.26784.2439
H82.47482.15603.79953.78114.29633.47761.77391.77181.09152.64564.13983.2998
H93.06142.15273.15792.59703.78112.78991.77421.77181.09242.64114.61443.8698
C102.15641.51662.80412.78993.47762.53761.09291.09151.09242.39244.30433.3723
O112.04881.44363.35182.64112.64562.39243.35182.64562.64112.39242.14261.4082
O123.43963.38905.26794.61454.14014.30455.26784.13984.61444.30432.14261.1833
N132.26022.33714.24403.86993.30003.37254.24393.29983.86983.37231.40821.1833

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 110.271 H1 C2 C10 110.269
H1 C2 O11 106.812 C2 C6 H3 110.574
C2 C6 H4 110.140 C2 C6 H5 110.458
C2 C10 H7 110.575 C2 C10 H8 110.457
C2 C10 H9 110.140 C2 O11 N13 110.065
H3 C6 H4 108.560 H3 C6 H5 108.600
H4 C6 H5 108.449 C6 C2 C10 113.571
C6 C2 O11 107.816 H7 C10 H8 108.599
H7 C10 H9 108.560 H8 C10 H9 108.449
C10 C2 O11 107.816 O11 N13 O12 111.237
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability