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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-321.762551
Energy at 298.15K-321.771318
Nuclear repulsion energy239.026505
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 mPW1PW91/3-21G
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 3171 3027 21.59      
2 A 3167 3023 11.38      
3 A 3166 3022 24.64      
4 A 3160 3017 1.22      
5 A 3097 2956 5.21      
6 A 3085 2945 8.54      
7 A 3083 2943 11.19      
8 A 1576 1504 17.72      
9 A 1561 1490 11.71      
10 A 1552 1481 1.29      
11 A 1546 1475 1.84      
12 A 1497 1429 124.64      
13 A 1470 1404 9.01      
14 A 1453 1387 20.65      
15 A 1406 1342 9.58      
16 A 1361 1299 48.42      
17 A 1239 1183 25.12      
18 A 1181 1128 34.52      
19 A 1178 1124 13.85      
20 A 987 942 1.63      
21 A 971 927 0.59      
22 A 959 916 25.11      
23 A 896 855 199.60      
24 A 857 818 219.43      
25 A 572 546 3.27      
26 A 479 457 0.48      
27 A 406 388 5.51      
28 A 321 306 0.10      
29 A 279 266 0.98      
30 A 212 202 0.03      
31 A 210 201 0.76      
32 A 171 164 0.54      
33 A 36 35 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 23150.6 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 22099.6 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 mPW1PW91/3-21G
ABC
0.24675 0.06764 0.05797

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.531 0.000 -1.363
C2 -0.827 -0.000 -0.308
H3 -2.533 -1.312 -0.510
H4 -1.806 -1.284 1.116
H5 -0.993 -2.153 -0.203
C6 -1.590 -1.271 0.044
H7 -2.532 1.314 -0.510
H8 -0.991 2.153 -0.203
H9 -1.805 1.285 1.116
C10 -1.589 1.272 0.044
O11 0.417 -0.001 0.492
O12 2.615 0.000 0.146
N13 1.569 -0.000 -0.462

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09552.54083.06962.48872.17202.54062.48843.06952.17182.08333.48942.2848
C21.09552.16102.15342.16181.52372.16112.16182.15351.52381.47963.47232.4009
H32.54082.16101.78141.78091.09422.62533.80463.14942.80573.37995.35284.3062
H43.06962.15341.78141.77651.09373.14963.77092.56962.78032.64184.70513.9406
H52.48872.16181.78091.77651.09323.80474.30583.77103.48482.66534.21643.3561
C62.17201.52371.09421.09371.09322.80593.48482.78032.54272.41724.39443.4422
H72.54062.16112.62533.14963.80472.80591.78091.78151.09423.38015.35194.3057
H82.48842.16183.80463.77094.30583.48481.78091.77651.09322.66544.21443.3550
H93.06952.15353.14942.56963.77102.78031.78151.77651.09372.64214.70433.9402
C102.17181.52382.80572.78033.48482.54271.09421.09321.09372.41744.39343.4417
O112.08331.47963.37992.64182.66532.41723.38012.66542.64212.41742.22521.4956
O123.48943.47235.35284.70514.21644.39445.35194.21444.70434.39342.22521.2105
N132.28482.40094.30623.94063.35613.44224.30573.35503.94023.44171.49561.2105

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 110.993 H1 C2 C10 110.974
H1 C2 O11 107.060 C2 C6 H3 110.191
C2 C6 H4 109.622 C2 C6 H5 110.311
C2 C10 H7 110.195 C2 C10 H8 110.307
C2 C10 H9 109.625 C2 O11 N13 107.603
H3 C6 H4 109.024 H3 C6 H5 109.008
H4 C6 H5 108.652 C6 C2 C10 113.102
C6 C2 O11 107.185 H7 C10 H8 109.006
H7 C10 H9 109.025 H8 C10 H9 108.649
C10 C2 O11 107.194 O11 N13 O12 110.189
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.238      
2 C -0.055      
3 H 0.217      
4 H 0.233      
5 H 0.230      
6 C -0.615      
7 H 0.217      
8 H 0.230      
9 H 0.233      
10 C -0.615      
11 O -0.355      
12 O -0.265      
13 N 0.307      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.453 0.001 -1.000 2.649
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.219 -0.001 -0.600
y -0.001 -34.328 0.000
z -0.600 0.000 -36.673
Traceless
 xyz
x -2.719 -0.001 -0.600
y -0.001 3.118 0.000
z -0.600 0.000 -0.399
Polar
3z2-r2-0.798
x2-y2-3.891
xy-0.001
xz-0.600
yz0.000


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


<r2> (average value of r2) Å2
<r2> 196.652
(<r2>)1/2 14.023