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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-323.521832
Energy at 298.15K-323.530702
Nuclear repulsion energy243.171341
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 B3PW91/6-31G*
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 3154 3018 24.55      
2 A 3153 3016 14.85      
3 A 3150 3014 41.64      
4 A 3144 3008 0.25      
5 A 3072 2939 10.26      
6 A 3068 2936 11.91      
7 A 3065 2932 15.83      
8 A 1782 1705 244.08      
9 A 1534 1467 7.66      
10 A 1520 1454 6.59      
11 A 1510 1445 0.43      
12 A 1506 1441 0.57      
13 A 1441 1379 11.09      
14 A 1428 1367 18.66      
15 A 1383 1323 31.80      
16 A 1381 1321 4.55      
17 A 1219 1166 16.83      
18 A 1181 1130 27.63      
19 A 1173 1122 9.37      
20 A 992 949 5.89      
21 A 956 914 0.00      
22 A 944 903 1.29      
23 A 915 876 231.91      
24 A 859 822 306.95      
25 A 623 596 9.19      
26 A 489 468 1.84      
27 A 430 412 4.16      
28 A 325 311 0.82      
29 A 291 278 1.06      
30 A 225 215 0.86      
31 A 213 204 0.04      
32 A 187 179 0.33      
33 A 44 42 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 23178.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 22174.4 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 B3PW91/6-31G*
ABC
0.24989 0.07056 0.05982

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.546 -0.000 -1.364
C2 -0.808 -0.000 -0.298
H3 -2.514 -1.311 -0.487
H4 -1.775 -1.311 1.129
H5 -0.977 -2.158 -0.212
C6 -1.562 -1.273 0.055
H7 -2.514 1.311 -0.486
H8 -0.977 2.158 -0.213
H9 -1.774 1.311 1.129
C10 -1.562 1.273 0.055
O11 0.438 0.000 0.435
O12 2.553 -0.000 0.156
N13 1.534 -0.000 -0.441

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09762.52263.07292.48352.16002.52292.48353.07292.16012.05013.45162.2755
C21.09762.16002.16552.16601.52092.16012.16612.16541.52091.44523.39132.3463
H32.52262.16001.77601.77631.09552.62223.80413.16702.80613.35885.27324.2555
H43.07292.16551.77601.77581.09543.16643.80342.62132.80552.66404.62553.8901
H52.48352.16601.77631.77581.09453.80414.31553.80343.49012.66014.15343.3186
C62.16001.52091.09551.09541.09452.80603.49022.80572.54512.40104.30873.3843
H72.52292.16012.62223.16643.80412.80601.77621.77611.09553.35875.27334.2556
H82.48352.16613.80413.80344.31553.49021.77621.77581.09452.66014.15353.3186
H93.07292.16543.16702.62133.80342.80571.77611.77581.09542.66364.62503.8898
C102.16011.52092.80612.80553.49012.54511.09551.09451.09542.40084.30863.3842
O112.05011.44523.35882.66402.66012.40103.35872.66012.66362.40082.13331.4031
O123.45163.39135.27324.62554.15344.30875.27334.15354.62504.30862.13331.1810
N132.27552.34634.25553.89013.31863.38434.25563.31863.88983.38421.40311.1810

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 110.108 H1 C2 C10 110.113
H1 C2 O11 106.659 C2 C6 H3 110.232
C2 C6 H4 110.669 C2 C6 H5 110.770
C2 C10 H7 110.238 C2 C10 H8 110.772
C2 C10 H9 110.666 C2 O11 N13 110.913
H3 C6 H4 108.317 H3 C6 H5 108.404
H4 C6 H5 108.370 C6 C2 C10 113.581
C6 C2 O11 108.058 H7 C10 H8 108.401
H7 C10 H9 108.319 H8 C10 H9 108.366
C10 C2 O11 108.046 O11 N13 O12 110.993
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.178     -0.118
2 C 0.079     0.748
3 H 0.175     0.143
4 H 0.185     0.138
5 H 0.185     0.165
6 C -0.512     -0.600
7 H 0.175     0.143
8 H 0.185     0.165
9 H 0.185     0.138
10 C -0.512     -0.600
11 O -0.351     -0.241
12 O -0.254     -0.123
13 N 0.284     0.044


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.728 -0.000 -0.738 2.826
CHELPG        
AIM        
ESP -2.639 -0.000 -0.808 2.760


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.437 0.000 -0.230
y 0.000 -34.245 0.000
z -0.230 0.000 -36.408
Traceless
 xyz
x -3.111 0.000 -0.230
y 0.000 3.177 0.000
z -0.230 0.000 -0.066
Polar
3z2-r2-0.133
x2-y2-4.192
xy0.000
xz-0.230
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> 191.442
(<r2>)1/2 13.836