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All results from a given calculation for C4H7NO (Oxazole, 4,5-dihydro-2-methyl-)

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-284.708501
Energy at 298.15K-284.717814
Nuclear repulsion energy240.728033
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/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 3331 3008 7.35      
2 A 3273 2956 36.52      
3 A 3245 2930 37.82      
4 A 3215 2902 11.68      
5 A 1909 1724 177.02      
6 A 1685 1521 1.40      
7 A 1667 1505 0.21      
8 A 1632 1474 12.02      
9 A 1587 1433 16.02      
10 A 1511 1364 14.40      
11 A 1470 1328 1.56      
12 A 1368 1236 138.93      
13 A 1197 1081 1.22      
14 A 1070 966 99.06      
15 A 1048 946 1.75      
16 A 1005 907 38.74      
17 A 963 869 20.29      
18 A 823 744 12.93      
19 A 700 632 5.30      
20 A 366 331 9.18      
21 A 3334 3010 38.85      
22 A 3286 2967 10.77      
23 A 3279 2960 11.33      
24 A 1632 1474 11.04      
25 A 1376 1243 0.14      
26 A 1317 1189 2.36      
27 A 1234 1114 0.36      
28 A 1197 1081 6.48      
29 A 915 827 1.35      
30 A 646 584 15.93      
31 A 263 237 17.28      
32 A 159 144 1.78      
33 A 126 114 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 25913.9 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 23397.7 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/6-31G
ABC
0.26246 0.11255 0.08235

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.344 2.140 0.000
C2 0.535 -1.528 0.000
C3 -0.997 -1.296 0.000
N4 -1.146 0.176 0.000
O5 1.071 -0.170 0.000
C6 0.000 0.702 0.000
H7 0.899 -2.028 0.882
H8 0.899 -2.028 -0.882
H9 -1.479 -1.707 0.874
H10 -1.479 -1.707 -0.874
H11 0.937 2.380 0.874
H12 0.937 2.380 -0.874
H13 -0.557 2.733 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.67303.68892.46592.42261.47944.29654.29654.34644.34641.08291.08291.0782
C23.67301.54932.39371.45922.29261.07721.07722.20362.20364.02434.02434.3980
C33.68891.54931.47972.35442.23262.21502.21501.08001.08004.24484.24484.0528
N42.46592.39371.47972.24441.26113.13323.13322.10242.10243.15643.15642.6238
O52.42261.45922.35442.24441.38132.06342.06343.10343.10342.69942.69943.3285
C61.47942.29262.23261.26111.38133.00603.00602.95872.95872.11162.11162.1060
H74.29651.07722.21503.13322.06343.00601.76412.39982.97404.40814.74495.0556
H84.29651.07722.21503.13322.06343.00601.76412.97402.39984.74494.40815.0556
H94.34642.20361.08002.10243.10342.95872.39982.97401.74904.74795.05964.6178
H104.34642.20361.08002.10243.10342.95872.97402.39981.74905.05964.74794.6178
H111.08294.02434.24483.15642.69942.11164.40814.74494.74795.05961.74741.7664
H121.08294.02434.24483.15642.69942.11164.74494.40815.05964.74791.74741.7664
H131.07824.39804.05282.62383.32852.10605.05565.05564.61784.61781.76641.7664

picture of Oxazole, 4,5-dihydro-2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C6 N4 128.086 C1 C6 O5 115.700
C2 C3 N4 104.395 C2 C3 H9 112.658
C2 C3 H10 112.658 C2 O5 C6 107.599
C3 C2 O5 102.960 C3 C2 H7 113.770
C3 C2 H8 113.770 C3 N4 C6 108.832
N4 C3 H9 109.451 N4 C3 H10 109.451
N4 C6 O5 116.214 O5 C2 H7 107.934
O5 C2 H8 107.934 C6 C1 H11 110.039
C6 C1 H12 110.039 C6 C1 H13 109.867
H7 C2 H8 109.934 H9 C3 H10 108.137
H11 C1 H12 107.571 H11 C1 H13 109.645
H12 C1 H13 109.645
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.480 -0.638    
2 C -0.011 0.084    
3 C -0.207 0.511    
4 N -0.508 -0.886    
5 O -0.712 -0.613    
6 C 0.562 1.016    
7 H 0.189 0.054    
8 H 0.189 0.054    
9 H 0.193 -0.047    
10 H 0.193 -0.047    
11 H 0.194 0.171    
12 H 0.194 0.171    
13 H 0.203 0.167    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.680 -1.310 0.000 1.476
CHELPG 0.662 -1.361 0.000 1.514
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.432 2.399 0.000
y 2.399 -28.277 0.000
z 0.000 0.000 -35.654
Traceless
 xyz
x -11.466 2.399 0.000
y 2.399 11.266 0.000
z 0.000 0.000 0.200
Polar
3z2-r20.401
x2-y2-15.155
xy2.399
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.005 0.805 0.000
y 0.805 8.105 0.000
z 0.000 0.000 5.149


<r2> (average value of r2) Å2
<r2> 149.613
(<r2>)1/2 12.232