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: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-323.395519
Energy at 298.15K-323.404239
Nuclear repulsion energy239.962087
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 B1B95/6-31G
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 3175 3028 24.19      
2 A 3173 3026 14.19      
3 A 3167 3020 37.39      
4 A 3162 3015 1.99      
5 A 3084 2941 8.11      
6 A 3076 2934 13.12      
7 A 3074 2931 15.17      
8 A 1658 1581 229.49      
9 A 1547 1475 10.62      
10 A 1534 1463 10.42      
11 A 1527 1457 1.09      
12 A 1521 1450 1.85      
13 A 1461 1393 9.88      
14 A 1445 1378 17.95      
15 A 1399 1335 8.89      
16 A 1369 1305 39.28      
17 A 1235 1178 15.90      
18 A 1194 1138 11.49      
19 A 1169 1115 34.80      
20 A 980 935 0.03      
21 A 967 922 1.97      
22 A 956 912 21.95      
23 A 892 851 17.77      
24 A 777 741 435.46      
25 A 576 550 15.69      
26 A 471 450 5.14      
27 A 416 397 6.36      
28 A 317 303 1.50      
29 A 272 259 1.12      
30 A 206 197 1.29      
31 A 202 193 0.07      
32 A 177 169 0.56      
33 A 43 41 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 23111.5 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 22041.4 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 B1B95/6-31G
ABC
0.24792 0.06802 0.05809

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.553 -0.000 -1.363
C2 -0.838 -0.000 -0.305
H3 -2.533 -1.319 -0.492
H4 -1.796 -1.303 1.122
H5 -0.994 -2.154 -0.210
C6 -1.584 -1.273 0.050
H7 -2.533 1.319 -0.491
H8 -0.993 2.154 -0.210
H9 -1.794 1.304 1.123
C10 -1.584 1.274 0.051
O11 0.423 -0.000 0.460
O12 2.605 -0.000 0.154
N13 1.572 0.000 -0.453

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09602.53353.06922.48302.16412.53392.48273.06912.16412.06853.50422.3120
C21.09602.15532.15672.16181.51782.15542.16182.15661.51781.47563.47422.4148
H32.53352.15531.77441.77401.09362.63793.80953.16672.81343.37405.34394.3118
H43.06922.15671.77441.77261.09293.16543.79092.60632.79842.65694.69063.9394
H52.48302.16181.77401.77261.09213.80944.30833.79093.48772.66364.20993.3589
C62.16411.51781.09361.09291.09212.81303.48782.79872.54672.41214.37993.4404
H72.53392.15542.63793.16543.80942.81301.77401.77441.09363.37405.34384.3116
H82.48272.16183.80953.79094.30833.48781.77401.77261.09212.66404.20963.3580
H93.06912.15663.16672.60633.79092.79871.77441.77261.09292.65634.68953.9383
C102.16411.51782.81342.79843.48772.54671.09361.09211.09292.41214.37953.4397
O112.06851.47563.37402.65692.66362.41213.37402.66402.65632.41212.20321.4671
O123.50423.47425.34394.69064.20994.37995.34384.20964.68954.37952.20321.1985
N132.31202.41484.31183.93943.35893.44044.31163.35803.93833.43971.46711.1985

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 110.737 H1 C2 C10 110.738
H1 C2 O11 106.151 C2 C6 H3 110.189
C2 C6 H4 110.340 C2 C6 H5 110.795
C2 C10 H7 110.191 C2 C10 H8 110.796
C2 C10 H9 110.335 C2 O11 N13 110.292
H3 C6 H4 108.494 H3 C6 H5 108.512
H4 C6 H5 108.444 C6 C2 C10 114.055
C6 C2 O11 107.368 H7 C10 H8 108.514
H7 C10 H9 108.493 H8 C10 H9 108.445
C10 C2 O11 107.366 O11 N13 O12 111.091
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.182      
2 C 0.025      
3 H 0.160      
4 H 0.175      
5 H 0.172      
6 C -0.437      
7 H 0.160      
8 H 0.172      
9 H 0.175      
10 C -0.437      
11 O -0.394      
12 O -0.241      
13 N 0.287      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.919 0.001 -1.060 3.106
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.972 0.001 -0.540
y 0.001 -34.327 0.002
z -0.540 0.002 -37.168
Traceless
 xyz
x -3.224 0.001 -0.540
y 0.001 3.743 0.002
z -0.540 0.002 -0.519
Polar
3z2-r2-1.038
x2-y2-4.645
xy0.001
xz-0.540
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.101 0.000 0.031
y 0.000 5.723 -0.000
z 0.031 -0.000 5.546


<r2> (average value of r2) Å2
<r2> 196.375
(<r2>)1/2 14.013