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: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-323.549841
Energy at 298.15K-323.558428
HF Energy-323.549841
Nuclear repulsion energy238.247859
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 BLYP/6-31G*
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 3053 3028 32.57      
2 A 3051 3026 19.27      
3 A 3046 3021 52.90      
4 A 3039 3014 1.12      
5 A 2980 2956 17.52      
6 A 2975 2951 18.05      
7 A 2962 2938 14.85      
8 A 1685 1671 280.90      
9 A 1501 1489 5.13      
10 A 1487 1475 5.26      
11 A 1480 1468 0.18      
12 A 1474 1462 0.58      
13 A 1406 1395 1.92      
14 A 1389 1378 6.90      
15 A 1343 1332 10.66      
16 A 1339 1328 36.81      
17 A 1181 1172 8.69      
18 A 1128 1118 26.31      
19 A 1122 1113 9.89      
20 A 930 923 0.42      
21 A 919 912 7.64      
22 A 917 910 0.17      
23 A 857 850 46.96      
24 A 728 722 311.39      
25 A 546 542 38.31      
26 A 445 441 19.90      
27 A 415 412 4.36      
28 A 306 304 6.13      
29 A 271 268 0.72      
30 A 210 208 1.84      
31 A 205 204 0.03      
32 A 181 179 0.15      
33 A 56 56 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 22313.0 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 22132.2 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 BLYP/6-31G*
ABC
0.24251 0.06718 0.05727

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.663 0.004 -1.415
C2 0.838 0.002 -0.326
H3 2.224 1.687 -0.343
H4 1.407 1.432 1.226
H5 0.515 2.156 -0.143
C6 1.271 1.405 0.132
H7 2.816 -0.900 -0.435
H8 1.488 -2.085 -0.296
H9 1.995 -1.142 1.132
C10 1.844 -1.100 0.042
O11 -0.427 -0.361 0.315
O12 -2.579 -0.127 0.162
N13 -1.540 0.129 -0.376

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.10302.53413.09332.50472.17492.53302.50923.09462.17622.07763.60772.4389
C21.10302.18172.18562.18571.53832.17652.18602.18511.53651.46503.45492.3823
H32.53412.18171.78701.78401.10172.65543.84363.19922.83913.41515.15974.0742
H43.09332.18561.78701.78661.10183.19073.83302.64272.82922.72254.41073.5983
H52.50472.18571.78401.78661.10083.83674.35383.83353.52152.72693.85742.8957
C62.17491.53831.10171.10181.10082.83233.52302.83082.57132.45794.14453.1290
H72.53302.17652.65543.19073.83672.83231.78581.78521.10123.37245.48314.4765
H82.50922.18603.84363.83304.35383.52301.78581.78441.10052.64764.53663.7515
H93.09462.18513.19922.64273.83352.83081.78521.78441.10142.67294.78504.0480
C102.17621.53652.83912.82923.52152.57131.10121.10051.10142.40374.53043.6241
O112.07761.46503.41512.72252.72692.45793.37242.64762.67292.40372.17011.3986
O123.60773.45495.15974.41073.85744.14455.48314.53664.78504.53042.17011.1979
N132.43892.38234.07423.59832.89573.12904.47653.75154.04803.62411.39861.1979

picture of Isopropyl nitrite state 1 conformation 1
More geometry information An error occurred on the server when processing the URL. Please contact the system administrator.

If you are the system administrator please click here to find out more about this error.