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All results from a given calculation for C4H5NO (3-Methylisoxazole)

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-285.264017
Energy at 298.15K-285.270255
HF Energy-285.264017
Nuclear repulsion energy220.476114
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 BLYP/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 3208 3182 2.25      
2 A 3188 3162 1.13      
3 A 3070 3045 8.48      
4 A 3027 3003 16.57      
5 A 2978 2954 18.42      
6 A 1559 1546 20.06      
7 A 1480 1468 9.89      
8 A 1476 1464 6.65      
9 A 1428 1416 11.27      
10 A 1406 1394 12.29      
11 A 1389 1378 15.84      
12 A 1257 1247 1.71      
13 A 1110 1101 13.06      
14 A 1051 1043 12.00      
15 A 1047 1038 2.81      
16 A 1007 998 2.15      
17 A 954 947 1.36      
18 A 892 885 0.56      
19 A 812 805 21.38      
20 A 809 802 0.08      
21 A 755 749 34.03      
22 A 636 631 0.89      
23 A 633 628 6.14      
24 A 584 579 3.03      
25 A 325 323 6.04      
26 A 261 259 3.99      
27 A 123 122 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 18231.6 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 18083.9 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 BLYP/6-31G*
ABC
0.29873 0.11474 0.08422

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.154 0.022 -0.000
H2 2.548 0.541 0.889
H3 2.533 -1.009 0.000
H4 2.548 0.541 -0.889
C5 -1.496 0.581 -0.000
O6 -1.396 -0.770 0.000
N7 -0.035 -1.115 0.000
C8 0.643 0.021 0.000
C9 -0.253 1.158 0.000
H10 0.003 2.214 0.000
H11 -2.507 0.985 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10231.09911.10243.69263.63652.46641.51022.66113.07004.7592
H21.10231.78761.77794.14114.24983.19462.16513.00253.17175.1518
H31.09911.78761.78764.33163.93562.56972.15213.52944.09695.4201
H41.10241.77791.78764.14114.24973.19462.16523.00273.17195.1518
C53.69264.14114.33164.14111.35442.23912.21191.37072.21701.0884
O63.63654.24983.93564.24971.35441.40402.18712.24073.29502.0770
N72.46643.19462.56973.19462.23911.40401.32352.28363.32913.2439
C81.51022.16512.15212.16522.21192.18711.32351.44762.28383.2947
C92.66113.00253.52943.00271.37072.24072.28361.44761.08652.2608
H103.07003.17174.09693.17192.21703.29503.32912.28381.08652.7952
H114.75925.15185.42015.15181.08842.07703.24393.29472.26082.7952

picture of 3-Methylisoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C8 N7 120.867 C1 C8 C9 128.224
H2 C1 H3 108.585 H2 C1 H4 107.490
H2 C1 C8 110.977 H3 C1 H4 108.585
H3 C1 C8 110.135 H4 C1 C8 110.979
C5 O6 N7 108.520 C5 C9 C8 103.377
C5 C9 H10 128.544 O6 C5 C9 110.617
O6 C5 H11 116.048 O6 N7 C8 106.578
N7 C8 C9 110.909 C8 C9 H10 128.079
C9 C5 H11 133.335
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.492      
2 H 0.156      
3 H 0.169      
4 H 0.156      
5 C 0.146      
6 O -0.295      
7 N -0.226      
8 C 0.335      
9 C -0.212      
10 H 0.118      
11 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.568 2.829 -0.000 2.885
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.551 -1.964 0.000
y -1.964 -36.054 0.000
z 0.000 0.000 -35.646
Traceless
 xyz
x 6.300 -1.964 0.000
y -1.964 -3.456 0.000
z 0.000 0.000 -2.844
Polar
3z2-r2-5.688
x2-y26.503
xy-1.964
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.563 -0.187 0.000
y -0.187 7.410 -0.000
z 0.000 -0.000 3.914


<r2> (average value of r2) Å2
<r2> 139.404
(<r2>)1/2 11.807