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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-323.579227
Energy at 298.15K-323.588120
Nuclear repulsion energy243.962324
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 mPW1PW91/6-31+G**
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 3169 3016 21.34      
2 A 3167 3015 12.59      
3 A 3164 3012 35.18      
4 A 3159 3006 0.22      
5 A 3093 2944 8.43      
6 A 3077 2929 11.57      
7 A 3074 2926 16.56      
8 A 1783 1697 273.69      
9 A 1517 1444 9.77      
10 A 1503 1431 8.48      
11 A 1493 1421 0.63      
12 A 1489 1417 0.89      
13 A 1430 1361 18.37      
14 A 1419 1351 24.68      
15 A 1380 1313 30.31      
16 A 1370 1304 2.00      
17 A 1215 1157 20.04      
18 A 1178 1121 23.26      
19 A 1175 1118 9.53      
20 A 995 947 6.68      
21 A 953 907 0.05      
22 A 940 895 1.19      
23 A 923 878 378.10      
24 A 881 839 241.74      
25 A 635 604 2.30      
26 A 494 470 0.99      
27 A 432 411 4.51      
28 A 328 312 0.71      
29 A 294 280 1.09      
30 A 227 216 0.87      
31 A 213 203 0.04      
32 A 184 175 0.36      
33 A 30 28 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 23191.8 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 22074.0 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 mPW1PW91/6-31+G**
ABC
0.25148 0.07098 0.06013

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.552 -0.000 -1.366
C2 -0.809 -0.000 -0.302
H3 -2.511 -1.307 -0.476
H4 -1.763 -1.306 1.131
H5 -0.977 -2.154 -0.213
C6 -1.558 -1.270 0.058
H7 -2.511 1.307 -0.475
H8 -0.976 2.154 -0.214
H9 -1.762 1.306 1.131
C10 -1.558 1.270 0.058
O11 0.444 -0.000 0.424
O12 2.546 0.000 0.156
N13 1.526 -0.000 -0.435

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09532.51733.06702.47972.15672.51782.47953.06702.15682.04853.45232.2769
C21.09532.15242.16022.16221.51712.15262.16222.16021.51721.44793.38692.3391
H32.51732.15241.77241.77231.09312.61353.79463.15782.79883.35355.26164.2431
H43.06702.16021.77241.77301.09313.15703.79442.61252.79822.65964.60713.8696
H52.47972.16221.77231.77301.09213.79474.30783.79443.48342.65744.14583.3091
C62.15671.51711.09311.09311.09212.79873.48342.79842.53992.39824.29723.3710
H72.51782.15262.61353.15703.79472.79871.77231.77241.09313.35375.26164.2434
H82.47952.16223.79463.79444.30783.48341.77231.77291.09212.65774.14563.3092
H93.06702.16023.15782.61253.79442.79841.77241.77291.09312.65934.60643.8692
C102.15681.51722.79882.79823.48342.53991.09311.09211.09312.39834.29703.3710
O112.04851.44793.35352.65962.65742.39823.35372.65772.65932.39832.11981.3820
O123.45233.38695.26164.60714.14584.29725.26164.14564.60644.29702.11981.1797
N132.27692.33914.24313.86963.30913.37104.24343.30923.86923.37101.38201.1797

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 110.248 H1 C2 C10 110.248
H1 C2 O11 106.488 C2 C6 H3 110.037
C2 C6 H4 110.660 C2 C6 H5 110.879
C2 C10 H7 110.047 C2 C10 H8 110.875
C2 C10 H9 110.653 C2 O11 N13 111.473
H3 C6 H4 108.330 H3 C6 H5 108.399
H4 C6 H5 108.459 C6 C2 C10 113.664
C6 C2 O11 107.943 H7 C10 H8 108.400
H7 C10 H9 108.332 H8 C10 H9 108.458
C10 C2 O11 107.943 O11 N13 O12 111.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.174      
2 C 0.096      
3 H 0.172      
4 H 0.184      
5 H 0.182      
6 C -0.560      
7 H 0.172      
8 H 0.182      
9 H 0.184      
10 C -0.560      
11 O 0.007      
12 O -0.011      
13 N -0.221      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.103 0.000 -0.850 3.218
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.593 -0.001 -0.243
y -0.001 -34.827 -0.000
z -0.243 -0.000 -37.368
Traceless
 xyz
x -3.495 -0.001 -0.243
y -0.001 3.654 -0.000
z -0.243 -0.000 -0.158
Polar
3z2-r2-0.317
x2-y2-4.766
xy-0.001
xz-0.243
yz-0.000


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> 191.070
(<r2>)1/2 13.823