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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-286.560695
Energy at 298.15K-286.569628
Nuclear repulsion energy241.596451
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 B3PW91/6-311G*
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 3174 3056 7.03      
2 A 3068 2954 57.47      
3 A 3058 2944 11.51      
4 A 3049 2935 48.73      
5 A 1759 1694 149.09      
6 A 1540 1483 3.50      
7 A 1515 1458 0.39      
8 A 1490 1434 11.77      
9 A 1427 1373 51.91      
10 A 1387 1335 8.22      
11 A 1344 1294 9.64      
12 A 1260 1213 107.04      
13 A 1095 1055 2.93      
14 A 1032 993 94.65      
15 A 994 957 0.58      
16 A 958 922 23.26      
17 A 921 887 23.18      
18 A 763 735 5.48      
19 A 668 644 2.31      
20 A 349 336 5.94      
21 A 3118 3002 16.03      
22 A 3117 3001 45.77      
23 A 3078 2963 9.46      
24 A 1486 1431 11.35      
25 A 1259 1212 0.03      
26 A 1231 1185 1.95      
27 A 1127 1085 0.00      
28 A 1067 1027 3.33      
29 A 836 804 0.17      
30 A 601 578 4.46      
31 A 238 229 11.14      
32 A 137 132 1.06      
33 A 73 70 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 24109.4 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 23210.1 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 B3PW91/6-311G*
ABC
0.25972 0.11503 0.08344

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.333 2.122 0.000
C2 0.544 -1.498 0.000
C3 -0.986 -1.284 0.000
N4 -1.163 0.169 0.000
O5 1.077 -0.160 0.000
C6 0.000 0.675 0.000
H7 0.918 -2.011 0.889
H8 0.918 -2.011 -0.889
H9 -1.472 -1.715 0.881
H10 -1.472 -1.715 -0.881
H11 0.931 2.374 0.881
H12 0.931 2.374 -0.881
H13 -0.583 2.710 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62563.65232.46032.39981.48524.26784.26784.33104.33101.09351.09351.0883
C23.62561.54452.38521.44032.23921.09261.09262.21062.21063.98903.98904.3555
C33.65231.54451.46342.34942.19252.22312.22311.09471.09474.22214.22214.0139
N42.46032.38521.46342.26401.26813.14173.14172.10242.10243.16553.16552.6064
O52.39981.44032.34942.26401.36252.06002.06003.11353.11352.68602.68603.3149
C61.48522.23922.19251.26811.36252.97412.97412.94162.94162.12812.12812.1169
H74.26781.09262.22313.14172.06002.97411.77802.40792.98844.38484.72845.0327
H84.26781.09262.22313.14172.06002.97411.77802.98842.40794.72844.38485.0327
H94.33102.21061.09472.10243.11352.94162.40792.98841.76174.74255.05904.5985
H104.33102.21061.09472.10243.11352.94162.98842.40791.76175.05904.74254.5985
H111.09353.98904.22213.16552.68602.12814.38484.72844.74255.05901.76111.7829
H121.09353.98904.22213.16552.68602.12814.72844.38485.05904.74251.76111.7829
H131.08834.35554.01392.60643.31492.11695.03275.03274.59854.59851.78291.7829

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 126.476 C1 C6 O5 114.788
C2 C3 N4 104.904 C2 C3 H9 112.669
C2 C3 H10 112.669 C2 O5 C6 106.018
C3 C2 O5 103.783 C3 C2 H7 113.822
C3 C2 H8 113.822 C3 N4 C6 106.560
N4 C3 H9 109.712 N4 C3 H10 109.712
N4 C6 O5 118.735 O5 C2 H7 108.051
O5 C2 H8 108.051 C6 C1 H11 110.301
C6 C1 H12 110.301 C6 C1 H13 109.725
H7 C2 H8 108.910 H9 C3 H10 107.159
H11 C1 H12 107.269 H11 C1 H13 109.603
H12 C1 H13 109.603
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.697      
2 C -0.268      
3 C -0.391      
4 N -0.333      
5 O -0.323      
6 C 0.361      
7 H 0.224      
8 H 0.224      
9 H 0.228      
10 H 0.228      
11 H 0.245      
12 H 0.245      
13 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.956 -0.950 0.000 1.348
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.033 1.806 0.000
y 1.806 -29.644 0.000
z 0.000 0.000 -35.035
Traceless
 xyz
x -8.693 1.806 0.000
y 1.806 8.390 0.000
z 0.000 0.000 0.304
Polar
3z2-r20.608
x2-y2-11.389
xy1.806
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> 147.881
(<r2>)1/2 12.161