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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-321.491044
Energy at 298.15K-321.499610
Nuclear repulsion energy235.442395
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/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 3079 3051 20.68      
2 A 3075 3047 13.10      
3 A 3072 3044 31.78      
4 A 3066 3038 0.92      
5 A 2994 2967 11.03      
6 A 2991 2964 12.07      
7 A 2985 2958 8.17      
8 A 1527 1513 14.37      
9 A 1512 1498 11.07      
10 A 1504 1491 0.95      
11 A 1497 1483 1.63      
12 A 1416 1403 64.71      
13 A 1412 1399 81.06      
14 A 1398 1385 15.92      
15 A 1355 1343 11.15      
16 A 1294 1282 48.60      
17 A 1191 1180 20.31      
18 A 1132 1121 12.77      
19 A 1130 1119 34.15      
20 A 953 945 1.66      
21 A 935 926 0.31      
22 A 902 894 7.01      
23 A 856 848 84.83      
24 A 791 784 218.64      
25 A 519 514 6.05      
26 A 454 450 0.72      
27 A 391 388 4.82      
28 A 305 302 0.27      
29 A 262 260 0.95      
30 A 204 202 0.04      
31 A 196 194 1.05      
32 A 176 175 0.28      
33 A 52 51 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 22312.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 22109.2 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 PBEPBE/3-21G
ABC
0.24115 0.06538 0.05630

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.515 0.000 -1.362
C2 -0.838 0.000 -0.304
H3 -2.550 -1.323 -0.548
H4 -1.857 -1.294 1.110
H5 -1.002 -2.168 -0.201
C6 -1.613 -1.281 0.034
H7 -2.550 1.323 -0.548
H8 -1.002 2.168 -0.201
H9 -1.857 1.294 1.110
C10 -1.613 1.281 0.034
O11 0.401 -0.000 0.533
O12 2.665 -0.000 0.138
N13 1.598 0.000 -0.473

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.10652.56033.09642.50752.19002.56042.50753.09642.19002.10493.51542.2926
C21.10652.17732.17072.17701.53472.17732.17702.17071.53471.49513.53042.4420
H32.56032.17731.79701.79701.10392.64663.83493.17452.82813.40955.42324.3545
H43.09642.17071.79701.79291.10333.17453.79952.58752.80102.66534.80274.0146
H52.50752.17701.79701.79291.10263.83494.33673.79953.51072.68504.27353.3968
C62.19001.53471.10391.10331.10262.82813.51072.80102.56172.43794.46623.4939
H72.56042.17732.64663.17453.83492.82811.79701.79701.10393.40955.42324.3545
H82.50752.17703.83493.79954.33673.51071.79701.79291.10262.68504.27353.3967
H93.09642.17073.17452.58753.79952.80101.79701.79291.10332.66534.80274.0146
C102.19001.53472.82812.80103.51072.56171.10391.10261.10332.43794.46623.4939
O112.10491.49513.40952.66532.68502.43793.40952.68502.66532.43792.29831.5638
O123.51543.53045.42324.80274.27354.46625.42324.27354.80274.46622.29831.2286
N132.29262.44204.35454.01463.39683.49394.35453.39674.01463.49391.56381.2286

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 110.992 H1 C2 C10 110.992
H1 C2 O11 107.073 C2 C6 H3 110.145
C2 C6 H4 109.662 C2 C6 H5 110.199
C2 C10 H7 110.145 C2 C10 H8 110.199
C2 C10 H9 109.662 C2 O11 N13 105.917
H3 C6 H4 109.008 H3 C6 H5 109.056
H4 C6 H5 108.741 C6 C2 C10 113.150
C6 C2 O11 107.147 H7 C10 H8 109.056
H7 C10 H9 109.008 H8 C10 H9 108.741
C10 C2 O11 107.147 O11 N13 O12 110.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.219      
2 C -0.061      
3 H 0.206      
4 H 0.219      
5 H 0.218      
6 C -0.587      
7 H 0.206      
8 H 0.218      
9 H 0.219      
10 C -0.587      
11 O -0.291      
12 O -0.228      
13 N 0.248      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.169 0.000 -0.856 2.332
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.638 0.000 -0.502
y 0.000 -34.490 0.000
z -0.502 0.000 -36.663
Traceless
 xyz
x -2.061 0.000 -0.502
y 0.000 2.661 0.000
z -0.502 0.000 -0.599
Polar
3z2-r2-1.199
x2-y2-3.148
xy0.000
xz-0.502
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.461 0.000 -0.030
y 0.000 5.595 0.000
z -0.030 0.000 5.335


<r2> (average value of r2) Å2
<r2> 201.714
(<r2>)1/2 14.203