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: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-321.711424
Energy at 298.15K-321.720125
Nuclear repulsion energy238.975848
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 B1B95/3-21G
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 3165 3028 21.84      
2 A 3161 3024 11.57      
3 A 3160 3023 27.37      
4 A 3155 3018 1.28      
5 A 3086 2953 5.39      
6 A 3079 2946 8.71      
7 A 3077 2943 11.21      
8 A 1567 1499 16.78      
9 A 1552 1485 11.71      
10 A 1544 1477 1.29      
11 A 1537 1471 1.55      
12 A 1488 1423 128.60      
13 A 1461 1398 7.92      
14 A 1444 1381 19.10      
15 A 1396 1336 10.03      
16 A 1354 1295 46.96      
17 A 1230 1176 23.62      
18 A 1172 1122 34.16      
19 A 1170 1119 13.32      
20 A 980 937 1.41      
21 A 964 922 0.68      
22 A 951 910 23.14      
23 A 888 849 168.31      
24 A 848 811 245.01      
25 A 562 538 3.81      
26 A 471 451 0.40      
27 A 398 381 5.53      
28 A 313 300 0.11      
29 A 273 261 1.07      
30 A 206 197 0.04      
31 A 205 196 0.75      
32 A 170 163 0.55      
33 A 38 37 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 23031.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 22034.6 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 B1B95/3-21G
ABC
0.24680 0.06761 0.05799

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.522 0.000 -1.361
C2 -0.827 -0.000 -0.309
H3 -2.530 -1.312 -0.515
H4 -1.810 -1.279 1.113
H5 -0.992 -2.151 -0.200
C6 -1.590 -1.270 0.042
H7 -2.529 1.314 -0.514
H8 -0.990 2.151 -0.200
H9 -1.808 1.280 1.113
C10 -1.589 1.271 0.043
O11 0.414 -0.001 0.499
O12 2.616 -0.000 0.145
N13 1.569 0.000 -0.463

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.09502.54343.06832.48942.17312.54362.48903.06822.17302.08173.48052.2755
C21.09502.15992.15062.16031.52282.15992.16042.15061.52281.48063.47262.4005
H32.54342.15991.78021.78001.09342.62623.80373.14552.80513.37865.35144.3039
H43.06832.15061.78021.77551.09293.14453.76372.55962.77432.63804.70793.9415
H52.48942.16031.78001.77551.09233.80364.30273.76373.48202.66254.21453.3546
C62.17311.52281.09341.09291.09232.80473.48202.77452.54062.41584.39483.4418
H72.54362.15992.62623.14453.80362.80471.78001.78021.09343.37865.35084.3034
H82.48902.16043.80373.76374.30273.48201.78001.77551.09232.66304.21343.3534
H93.06822.15063.14552.55963.76372.77451.78021.77551.09292.63784.70663.9404
C102.17301.52282.80512.77433.48202.54061.09341.09231.09292.41594.39403.4410
O112.08171.48063.37862.63802.66252.41583.37862.66302.63782.41592.23021.5024
O123.48053.47265.35144.70794.21454.39485.35084.21344.70664.39402.23021.2106
N132.27552.40054.30393.94153.35463.44184.30343.35343.94043.44101.50241.2106

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 111.174 H1 C2 C10 111.164
H1 C2 O11 106.895 C2 C6 H3 110.217
C2 C6 H4 109.516 C2 C6 H5 110.315
C2 C10 H7 110.214 C2 C10 H8 110.317
C2 C10 H9 109.514 C2 O11 N13 107.168
H3 C6 H4 109.025 H3 C6 H5 109.054
H4 C6 H5 108.682 C6 C2 C10 113.061
C6 C2 O11 107.089 H7 C10 H8 109.053
H7 C10 H9 109.027 H8 C10 H9 108.684
C10 C2 O11 107.091 O11 N13 O12 110.112
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.231      
2 C -0.060      
3 H 0.209      
4 H 0.225      
5 H 0.223      
6 C -0.589      
7 H 0.209      
8 H 0.223      
9 H 0.225      
10 C -0.589      
11 O -0.349      
12 O -0.259      
13 N 0.302      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.382 0.001 -0.995 2.581
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.054 0.001 -0.608
y 0.001 -34.301 0.002
z -0.608 0.002 -36.639
Traceless
 xyz
x -2.583 0.001 -0.608
y 0.001 3.045 0.002
z -0.608 0.002 -0.462
Polar
3z2-r2-0.923
x2-y2-3.752
xy0.001
xz-0.608
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.692 0.000 0.018
y 0.000 5.394 -0.000
z 0.018 -0.000 5.164


<r2> (average value of r2) Å2
<r2> 196.570
(<r2>)1/2 14.020