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

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-61.357563
Energy at 298.15K-61.366694
Nuclear repulsion energy136.201913
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 HF/CEP-121G
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 3272 2986 68.96      
2 A 3261 2976 55.54      
3 A 3255 2970 37.25      
4 A 3246 2962 18.61      
5 A 3223 2941 6.82      
6 A 3164 2887 22.61      
7 A 3155 2879 23.66      
8 A 1810 1652 225.27      
9 A 1644 1500 9.36      
10 A 1632 1489 6.23      
11 A 1625 1483 1.17      
12 A 1619 1477 1.81      
13 A 1569 1432 18.54      
14 A 1554 1418 16.98      
15 A 1504 1373 23.02      
16 A 1495 1364 37.85      
17 A 1322 1206 20.60      
18 A 1277 1166 22.76      
19 A 1251 1142 24.76      
20 A 1088 993 507.86      
21 A 1047 955 27.61      
22 A 1038 947 58.68      
23 A 1035 945 1.91      
24 A 935 853 0.33      
25 A 651 594 13.78      
26 A 507 462 3.33      
27 A 459 419 6.73      
28 A 348 318 0.59      
29 A 279 254 0.60      
30 A 224 204 0.42      
31 A 212 194 0.09      
32 A 149 136 1.00      
33 A 68 62 1.29      

Unscaled Zero Point Vibrational Energy (zpe) 24458.8 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 22318.7 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 HF/CEP-121G
ABC
0.25024 0.07061 0.05913

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.659 0.004 -1.419
C2 0.820 0.005 -0.346
H3 2.181 1.680 -0.311
H4 1.340 1.410 1.215
H5 0.493 2.142 -0.146
C6 1.232 1.399 0.135
H7 2.768 -0.917 -0.382
H8 1.435 -2.068 -0.292
H9 1.896 -1.146 1.134
C10 1.791 -1.105 0.055
O11 -0.467 -0.366 0.277
O12 -2.589 -0.141 0.173
N13 -1.561 0.148 -0.375

Atom - Atom Distances (Å)
  H1 C2 H3 H4 H5 C6 H7 H8 H9 C10 O11 O12 N13
H11.08422.52003.06172.49392.16512.52332.48303.06042.16392.06883.62072.4576
C21.08422.15862.16362.17161.53132.15472.16282.16161.52831.47743.45212.3858
H32.52002.15861.76351.75861.08632.66283.82163.18682.83573.39785.12964.0447
H43.06172.16361.76351.76231.08503.16243.79132.61702.80592.70164.35113.5411
H52.49392.17161.75861.76231.08523.81954.31693.79733.50302.71873.84942.8725
C62.16511.53131.08631.08501.08522.82653.49922.81352.56702.45384.12023.1029
H72.52332.15472.66283.16243.81952.82651.76351.76331.08613.34665.44124.4577
H82.48302.16283.82163.79134.31693.49921.76351.75901.08392.61484.48573.7271
H93.06042.16163.18682.61703.79732.81351.76331.75901.08452.63194.69583.9878
C102.16391.52832.83572.80593.50302.56701.08611.08391.08452.38654.48693.6045
O112.06881.47743.39782.70162.71872.45383.34662.61482.63192.38652.13671.3733
O123.62073.45215.12964.35113.84944.12025.44124.48574.69584.48692.13671.2007
N132.45762.38584.04473.54112.87253.10294.45773.72713.98783.60451.37331.2007

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 110.579 H1 C2 C10 110.695
H1 C2 O11 106.718 C2 C6 H3 109.937
C2 C6 H4 110.414 C2 C6 H5 111.047
C2 C10 H7 109.859 C2 C10 H8 110.634
C2 C10 H9 110.491 C2 O11 N13 113.581
H3 C6 H4 108.618 H3 C6 H5 108.167
H4 C6 H5 108.588 C6 C2 C10 114.067
C6 C2 O11 109.272 H7 C10 H8 108.723
H7 C10 H9 108.656 H8 C10 H9 108.424
C10 C2 O11 105.105 O11 N13 O12 112.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.140      
2 C 0.186      
3 H 0.152      
4 H 0.162      
5 H 0.169      
6 C -0.484      
7 H 0.147      
8 H 0.169      
9 H 0.164      
10 C -0.454      
11 O -0.386      
12 O -0.193      
13 N 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.801 0.726 -1.200 4.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.691 -0.670 0.615
y -0.670 -35.824 1.435
z 0.615 1.435 -36.937
Traceless
 xyz
x -5.310 -0.670 0.615
y -0.670 3.490 1.435
z 0.615 1.435 1.820
Polar
3z2-r23.641
x2-y2-5.867
xy-0.670
xz0.615
yz1.435


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.427 0.061 -0.330
y 0.061 6.025 -0.117
z -0.330 -0.117 5.717


<r2> (average value of r2) Å2
<r2> 156.299
(<r2>)1/2 12.502