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

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-286.644752
Energy at 298.15K-286.653645
HF Energy-286.644752
Nuclear repulsion energy240.732693
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 TPSSh/6-31G(2df,p)
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' 3169 3058 6.95      
2 A' 3052 2945 57.96      
3 A' 3052 2945 9.79      
4 A' 3036 2930 47.20      
5 A' 1735 1674 128.87      
6 A' 1535 1482 0.78      
7 A' 1510 1457 0.42      
8 A' 1489 1437 9.28      
9 A' 1418 1368 29.05      
10 A' 1380 1332 15.85      
11 A' 1334 1288 16.24      
12 A' 1246 1202 93.62      
13 A' 1080 1042 1.56      
14 A' 1009 974 88.00      
15 A' 976 942 0.85      
16 A' 947 914 24.16      
17 A' 908 876 18.06      
18 A' 750 724 5.49      
19 A' 659 635 2.33      
20 A' 337 325 5.06      
21 A" 3113 3004 10.19      
22 A" 3101 2992 47.84      
23 A" 3066 2959 7.01      
24 A" 1488 1436 6.56      
25 A" 1250 1206 0.06      
26 A" 1214 1172 1.94      
27 A" 1120 1081 0.02      
28 A" 1061 1024 2.46      
29 A" 821 792 0.30      
30 A" 593 572 4.53      
31 A" 235 226 9.38      
32 A" 138 133 0.64      
33 A" 80 77 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 23949.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 23111.1 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 TPSSh/6-31G(2df,p)
ABC
0.25740 0.11433 0.08285

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.340 2.126 0.000
C2 0.544 -1.502 0.000
C3 -0.992 -1.286 0.000
N4 -1.171 0.173 0.000
O5 1.084 -0.160 0.000
C6 0.000 0.675 0.000
H7 0.916 -2.016 0.890
H8 0.916 -2.016 -0.890
H9 -1.476 -1.719 0.882
H10 -1.476 -1.719 -0.882
H11 0.938 2.375 0.882
H12 0.938 2.375 -0.882
H13 -0.578 2.714 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.63403.66362.46932.40471.49104.27624.27624.34314.34311.09461.09461.0895
C23.63401.55092.39651.44632.24321.09361.09362.21462.21463.99513.99514.3627
C33.66361.55091.47022.36202.19782.22842.22841.09531.09534.23184.23184.0222
N42.46932.39651.47022.27901.27373.15253.15252.10982.10983.17383.17382.6097
O52.40471.44632.36202.27901.36812.06532.06533.12433.12432.68792.68793.3202
C61.49102.24322.19781.27371.36812.97852.97852.94732.94732.13272.13272.1199
H74.27621.09362.22843.15252.06532.97851.78092.41022.99204.39084.73515.0399
H84.27621.09362.22843.15252.06532.97851.78092.99202.41024.73514.39085.0399
H94.34312.21461.09532.10983.12432.94732.41022.99201.76484.75255.06954.6087
H104.34312.21461.09532.10983.12432.94732.99202.41021.76485.06954.75254.6087
H111.09463.99514.23183.17382.68792.13274.39084.73514.75255.06951.76441.7864
H121.09463.99514.23183.17382.68792.13274.73514.39085.06954.75251.76441.7864
H131.08954.36274.02222.60973.32022.11995.03995.03994.60874.60871.78641.7864

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 126.365 C1 C6 O5 114.437
C2 C3 N4 104.951 C2 C3 H9 112.490
C2 C3 H10 112.490 C2 O5 C6 105.668
C3 C2 O5 103.955 C3 C2 H7 113.724
C3 C2 H8 113.724 C3 N4 C6 106.228
N4 C3 H9 109.780 N4 C3 H10 109.780
N4 C6 O5 119.198 O5 C2 H7 108.006
O5 C2 H8 108.006 C6 C1 H11 110.203
C6 C1 H12 110.203 C6 C1 H13 109.490
H7 C2 H8 109.026 H9 C3 H10 107.337
H11 C1 H12 107.405 H11 C1 H13 109.757
H12 C1 H13 109.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability