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

using model chemistry: HF/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-284.954480
Energy at 298.15K-284.963766
Nuclear repulsion energy243.785383
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/cc-pVTZ
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 3289 2994 10.23      
2 A 3208 2920 71.87      
3 A 3185 2899 56.26      
4 A 3181 2895 14.83      
5 A 1914 1742 231.58      
6 A 1663 1513 2.42      
7 A 1637 1490 0.38      
8 A 1594 1451 9.05      
9 A 1554 1414 53.94      
10 A 1513 1377 8.00      
11 A 1472 1340 22.17      
12 A 1367 1244 134.57      
13 A 1189 1083 9.61      
14 A 1137 1035 108.73      
15 A 1077 980 0.74      
16 A 1030 937 32.25      
17 A 992 902 16.20      
18 A 826 752 7.50      
19 A 702 639 2.69      
20 A 375 342 6.57      
21 A 3250 2958 60.99      
22 A 3235 2944 15.13      
23 A 3208 2920 11.56      
24 A 1595 1452 7.13      
25 A 1357 1235 0.01      
26 A 1329 1209 4.74      
27 A 1228 1117 0.17      
28 A 1165 1060 3.09      
29 A 899 819 1.20      
30 A 669 609 8.12      
31 A 260 237 10.84      
32 A 161 146 0.81      
33 A 75 68 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 25668.1 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 23360.5 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/cc-pVTZ
ABC
0.26674 0.11612 0.08467

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.337 2.116 0.000
C2 0.542 -1.487 0.000
C3 -0.983 -1.278 0.000
N4 -1.143 0.169 0.000
O5 1.055 -0.162 0.000
C6 0.000 0.667 0.000
H7 0.907 -1.997 0.879
H8 0.907 -1.997 -0.879
H9 -1.459 -1.706 0.873
H10 -1.459 -1.706 -0.873
H11 0.930 2.354 0.875
H12 0.930 2.354 -0.875
H13 -0.568 2.702 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.60933.64272.44592.38881.48784.24544.24544.31314.31311.08291.08291.0778
C23.60931.53992.36261.42062.22161.08041.08042.19452.19453.95803.95804.3334
C33.64271.53991.45622.32402.18022.20562.20561.08231.08234.19744.19744.0019
N42.44592.36261.45622.22241.24683.10963.10962.09272.09273.13593.13592.5972
O52.38881.42062.32402.22241.34182.04072.04073.07693.07692.66632.66633.2916
C61.48782.22162.18021.24681.34182.94922.94922.92002.92002.11502.11502.1122
H74.24541.08042.20563.10962.04072.94921.75892.38422.95884.35124.69145.0033
H84.24541.08042.20563.10962.04072.94921.75892.95882.38424.69144.35125.0033
H94.31312.19451.08232.09273.07692.92002.38422.95881.74574.71095.02454.5814
H104.31312.19451.08232.09273.07692.92002.95882.38421.74575.02454.71094.5814
H111.08293.95804.19743.13592.66632.11504.35124.69144.71095.02451.74931.7691
H121.08293.95804.19743.13592.66632.11504.69144.35125.02454.71091.74931.7691
H131.07784.33344.00192.59723.29162.11225.00335.00334.58144.58141.76911.7691

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 126.654 C1 C6 O5 115.086
C2 C3 N4 104.066 C2 C3 H9 112.458
C2 C3 H10 112.458 C2 O5 C6 107.031
C3 C2 O5 103.366 C3 C2 H7 113.490
C3 C2 H8 113.490 C3 N4 C6 107.277
N4 C3 H9 110.180 N4 C3 H10 110.180
N4 C6 O5 118.260 O5 C2 H7 108.594
O5 C2 H8 108.594 C6 C1 H11 109.714
C6 C1 H12 109.714 C6 C1 H13 109.800
H7 C2 H8 108.985 H9 C3 H10 107.500
H11 C1 H12 107.736 H11 C1 H13 109.923
H12 C1 H13 109.923
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.264     -0.677
2 C 0.021     0.083
3 C -0.068     0.274
4 N -0.290     -0.736
5 O -0.330     -0.446
6 C 0.234     0.866
7 H 0.089     0.041
8 H 0.089     0.041
9 H 0.091     0.002
10 H 0.091     0.002
11 H 0.106     0.182
12 H 0.106     0.182
13 H 0.125     0.184


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.076 -0.878 0.000 1.389
CHELPG        
AIM        
ESP 1.059 -0.952 0.000 1.423


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.453 1.884 0.000
y 1.884 -29.826 0.000
z 0.000 0.000 -35.215
Traceless
 xyz
x -8.933 1.884 0.000
y 1.884 8.509 0.000
z 0.000 0.000 0.424
Polar
3z2-r20.848
x2-y2-11.628
xy1.884
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.635 0.686 0.000
y 0.686 8.931 0.000
z 0.000 0.000 5.999


<r2> (average value of r2) Å2
<r2> 146.235
(<r2>)1/2 12.093