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: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-323.398831
Energy at 298.15K-323.407477
Nuclear repulsion energy240.812620
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 PBEPBE/cc-pVTZ
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 3056 3034 22.56      
2 A 3054 3033 15.26      
3 A 3049 3028 39.51      
4 A 3043 3022 0.02      
5 A 2976 2955 13.32      
6 A 2972 2952 15.10      
7 A 2956 2936 12.36      
8 A 1705 1693 312.59      
9 A 1457 1447 7.54      
10 A 1443 1433 7.33      
11 A 1434 1424 0.26      
12 A 1428 1418 0.77      
13 A 1364 1355 7.54      
14 A 1348 1339 17.84      
15 A 1317 1308 5.22      
16 A 1314 1304 26.69      
17 A 1164 1156 11.42      
18 A 1124 1117 9.69      
19 A 1118 1110 25.33      
20 A 934 928 6.43      
21 A 915 908 0.01      
22 A 904 897 0.74      
23 A 867 861 48.68      
24 A 739 734 355.15      
25 A 559 555 55.91      
26 A 450 447 21.43      
27 A 418 415 4.04      
28 A 309 307 6.80      
29 A 271 269 1.08      
30 A 208 207 1.75      
31 A 199 198 0.04      
32 A 184 183 0.13      
33 A 53 53 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 22165.3 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 22012.4 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 PBEPBE/cc-pVTZ
ABC
0.24805 0.06865 0.05851

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.532 0.000 -1.357
C2 0.815 0.000 -0.291
H3 2.524 1.308 -0.520
H4 1.820 1.311 1.116
H5 0.991 2.163 -0.212
C6 1.581 1.273 0.044
H7 2.525 -1.308 -0.520
H8 0.992 -2.163 -0.212
H9 1.820 -1.311 1.116
C10 1.582 -1.273 0.044
O11 -0.422 -0.000 0.468
O12 -2.586 -0.000 0.148
N13 -1.572 0.000 -0.447

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.10302.52643.08152.49002.16482.52642.49003.08152.16482.05883.46182.2920
C21.10302.16452.17022.17151.52362.16452.17152.17021.52361.45113.42942.3921
H32.52642.16451.78111.78171.09902.61613.80673.16762.80543.37165.31734.3006
H43.08152.17021.78111.78201.09903.16763.81062.62272.80842.67724.69833.9583
H52.49002.17151.78171.78201.09773.80674.32573.81063.49592.67194.19603.3620
C62.16481.52361.09901.09901.09772.80543.49592.80842.54662.41154.35913.4360
H72.52642.16452.61613.16763.80672.80541.78171.78111.09903.37155.31764.3009
H82.49002.17153.80673.81064.32573.49591.78171.78201.09772.67184.19673.3628
H93.08152.17023.16762.62273.81062.80841.78111.78201.09902.67714.69863.9586
C102.16481.52362.80542.80843.49592.54661.09901.09771.09902.41154.35953.4364
O112.05881.45113.37162.67722.67192.41153.37152.67182.67712.41152.18791.4694
O123.46183.42945.31734.69834.19604.35915.31764.19674.69864.35952.18791.1755
N132.29202.39214.30063.95833.36203.43604.30093.36283.95863.43641.46941.1755

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 109.984 H1 C2 C10 109.985
H1 C2 O11 106.636 C2 C6 H3 110.194
C2 C6 H4 110.648 C2 C6 H5 110.829
C2 C10 H7 110.195 C2 C10 H8 110.829
C2 C10 H9 110.648 C2 O11 N13 109.979
H3 C6 H4 108.254 H3 C6 H5 108.403
H4 C6 H5 108.433 C6 C2 C10 113.389
C6 C2 O11 108.300 H7 C10 H8 108.403
H7 C10 H9 108.253 H8 C10 H9 108.433
C10 C2 O11 108.296 O11 N13 O12 111.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.046      
2 C 0.103      
3 H 0.089      
4 H 0.097      
5 H 0.100      
6 C -0.267      
7 H 0.089      
8 H 0.100      
9 H 0.097      
10 C -0.267      
11 O -0.177      
12 O -0.082      
13 N 0.070      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.213 0.000 -0.708 2.324
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.242 -0.000 0.196
y -0.000 -35.219 0.001
z 0.196 0.001 -37.302
Traceless
 xyz
x -1.981 -0.000 0.196
y -0.000 2.552 0.001
z 0.196 0.001 -0.571
Polar
3z2-r2-1.143
x2-y2-3.022
xy-0.000
xz0.196
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.546 -0.000 0.083
y -0.000 7.436 -0.000
z 0.083 -0.000 6.838


<r2> (average value of r2) Å2
<r2> 195.409
(<r2>)1/2 13.979