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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-286.498804
Energy at 298.15K-286.507733
Nuclear repulsion energy241.234048
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3196 3058 4.68      
2 A 3082 2949 49.99      
3 A 3075 2942 8.82      
4 A 3064 2931 45.24      
5 A 1771 1694 141.37      
6 A 1553 1485 1.58      
7 A 1526 1460 0.18      
8 A 1502 1436 9.63      
9 A 1440 1377 47.60      
10 A 1396 1336 13.59      
11 A 1353 1294 13.86      
12 A 1270 1215 105.05      
13 A 1101 1053 2.83      
14 A 1045 1000 91.43      
15 A 997 954 1.46      
16 A 962 920 19.86      
17 A 924 884 18.02      
18 A 762 729 5.45      
19 A 669 640 2.59      
20 A 349 334 5.94      
21 A 3141 3005 7.92      
22 A 3132 2997 45.13      
23 A 3096 2962 8.44      
24 A 1499 1434 9.75      
25 A 1260 1206 0.05      
26 A 1229 1176 1.31      
27 A 1130 1081 0.01      
28 A 1072 1026 4.37      
29 A 839 802 0.19      
30 A 596 571 5.53      
31 A 238 228 10.64      
32 A 140 134 1.04      
33 A 79 75 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 24243.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 23193.7 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 B3PW91/6-31G*
ABC
0.25858 0.11478 0.08321

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.334 2.125 0.000
C2 0.546 -1.498 0.000
C3 -0.986 -1.284 0.000
N4 -1.167 0.168 0.000
O5 1.079 -0.160 0.000
C6 0.000 0.675 0.000
H7 0.919 -2.014 0.890
H8 0.919 -2.014 -0.890
H9 -1.471 -1.719 0.882
H10 -1.471 -1.719 -0.882
H11 0.932 2.377 0.883
H12 0.932 2.377 -0.883
H13 -0.585 2.712 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62933.65642.46682.40381.48834.27444.27444.33794.33791.09541.09541.0905
C23.62931.54742.38981.43982.24031.09471.09472.21282.21283.99303.99304.3594
C33.65641.54741.46362.35152.19352.22612.22611.09671.09674.22684.22684.0166
N42.46682.38981.46362.27021.27263.14763.14762.10542.10543.17273.17272.6100
O52.40381.43982.35152.27021.36442.06302.06303.11633.11632.69072.69073.3196
C61.48832.24032.19351.27261.36442.97802.97802.94522.94522.13202.13202.1197
H74.27441.09472.22613.14762.06302.97801.78072.40792.99024.39164.73605.0393
H84.27441.09472.22613.14762.06302.97801.78072.99022.40794.73604.39165.0393
H94.33792.21281.09672.10543.11632.94522.40792.99021.76494.74925.06664.6045
H104.33792.21281.09672.10543.11632.94522.99022.40791.76495.06664.74924.6045
H111.09543.99304.22683.17272.69072.13204.39164.73604.74925.06661.76551.7866
H121.09543.99304.22683.17272.69072.13204.73604.39165.06664.74921.76551.7866
H131.09054.35944.01662.61003.31962.11975.03935.03934.60454.60451.78661.7866

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 126.439 C1 C6 O5 114.769
C2 C3 N4 105.031 C2 C3 H9 112.511
C2 C3 H10 112.511 C2 O5 C6 106.021
C3 C2 O5 103.787 C3 C2 H7 113.719
C3 C2 H8 113.719 C3 N4 C6 106.369
N4 C3 H9 109.813 N4 C3 H10 109.813
N4 C6 O5 118.792 O5 C2 H7 108.200
O5 C2 H8 108.200 C6 C1 H11 110.281
C6 C1 H12 110.281 C6 C1 H13 109.594
H7 C2 H8 108.849 H9 C3 H10 107.159
H11 C1 H12 107.385 H11 C1 H13 109.635
H12 C1 H13 109.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.583     0.077
2 C -0.105     0.077
3 C -0.235     -0.022
4 N -0.450     0.040
5 O -0.479     0.040
6 C 0.522     0.163
7 H 0.179     -0.658
8 H 0.179     -0.392
9 H 0.182     0.815
10 H 0.182     0.198
11 H 0.200     0.200
12 H 0.200     0.198
13 H 0.211     -0.736


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.983 -0.899 0.000 1.332
CHELPG        
AIM        
ESP -0.798 -1.115 -0.001 1.371


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.426 1.775 0.000
y 1.775 -29.197 0.000
z 0.000 0.000 -34.785
Traceless
 xyz
x -8.435 1.775 0.000
y 1.775 8.409 0.000
z 0.000 0.000 0.027
Polar
3z2-r20.054
x2-y2-11.229
xy1.775
xz0.000
yz0.000


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> 147.969
(<r2>)1/2 12.164