return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H8O2 (Hydroperoxide, 1-methylethyl)

using model chemistry: B3LYPultrafine/aug-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 B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-269.604544
Energy at 298.15K-269.613813
HF Energy-269.604544
Nuclear repulsion energy194.446838
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 B3LYPultrafine/aug-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 3762 3640 39.33      
2 A 3112 3011 18.90      
3 A 3109 3008 18.52      
4 A 3102 3002 36.83      
5 A 3090 2989 11.92      
6 A 3038 2939 16.59      
7 A 3030 2931 16.87      
8 A 3016 2918 18.38      
9 A 1513 1464 8.11      
10 A 1495 1446 3.27      
11 A 1488 1439 2.22      
12 A 1481 1433 2.02      
13 A 1415 1369 5.84      
14 A 1400 1355 20.07      
15 A 1380 1335 6.05      
16 A 1371 1326 12.58      
17 A 1336 1293 47.93      
18 A 1195 1156 4.60      
19 A 1166 1128 29.89      
20 A 1136 1099 13.19      
21 A 953 922 2.80      
22 A 950 919 1.57      
23 A 931 901 1.70      
24 A 899 870 14.46      
25 A 819 792 4.50      
26 A 498 482 6.16      
27 A 468 453 3.82      
28 A 352 340 0.54      
29 A 286 277 2.42      
30 A 243 235 13.76      
31 A 206 199 46.93      
32 A 196 189 57.50      
33 A 132 128 4.84      

Unscaled Zero Point Vibrational Energy (zpe) 24282.4 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 23493.2 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 B3LYPultrafine/aug-cc-pVTZ
ABC
0.25985 0.12731 0.09425

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.919 -0.169 -0.191
H2 -2.333 0.213 0.592
O3 -0.675 -0.669 0.321
C4 1.642 -0.804 0.029
H5 1.812 -0.793 1.107
H6 1.529 -1.839 -0.292
H7 2.518 -0.381 -0.460
C8 0.513 1.469 0.100
H9 0.681 1.538 1.176
H10 1.346 1.955 -0.408
H11 -0.395 2.015 -0.150
C12 0.406 0.009 -0.328
H13 0.232 -0.045 -1.407

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O10.96481.43463.62353.99873.83264.45002.94643.39773.90142.66362.33602.4739
H20.96481.89724.14134.29594.46224.99913.14893.34364.19172.74792.89673.2621
O31.43461.89722.33932.61122.57023.30012.45572.72783.39172.73931.43212.0491
C43.62354.14132.33931.09071.08921.08942.53902.77912.80923.48291.52182.1513
H53.99874.29592.61121.09071.76931.76752.79552.59113.17203.78602.16273.0618
H63.83264.46222.57021.08921.76931.76963.48263.77853.79994.31012.16282.4788
H74.45004.99913.30011.08941.76751.76962.78493.11982.61353.78452.15142.4970
C82.94643.14892.45572.53902.79553.48262.78491.09151.09081.08881.52512.1550
H93.39773.34362.72782.77912.59113.77853.11981.09151.76881.77372.16253.0632
H103.90144.19173.39172.80923.17203.79992.61351.09081.76881.76172.16252.4980
H112.66362.74792.73933.48293.78604.31013.78451.08881.77371.76172.16752.4938
C122.33602.89671.43211.52182.16272.16282.15141.52512.16252.16252.16751.0944
H132.47393.26212.04912.15133.06182.47882.49702.15503.06322.49802.49381.0944

picture of Hydroperoxide, 1-methylethyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O3 C12 109.147 H2 O1 O3 102.737
O3 C12 C4 104.694 O3 C12 C8 112.244
O3 C12 H13 107.647 C4 C12 C8 112.878
C4 C12 H13 109.544 H5 C4 H6 108.520
H5 C4 H7 108.339 H5 C4 C12 110.668
H6 C4 H7 108.633 H6 C4 C12 110.767
H7 C4 C12 109.847 C8 C12 H13 109.611
H9 C8 H10 108.296 H9 C8 H11 108.882
H9 C8 C12 110.374 H10 C8 H11 107.854
H10 C8 C12 110.417 H11 C8 C12 110.935
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.310      
2 H 0.178      
3 O -0.454      
4 C -0.765      
5 H 0.200      
6 H 0.176      
7 H 0.209      
8 C -0.823      
9 H 0.206      
10 H 0.178      
11 H 0.199      
12 C 0.769      
13 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.930 1.367 0.495 1.726
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.045 -2.381 -3.130
y -2.381 -33.124 0.686
z -3.130 0.686 -31.516
Traceless
 xyz
x 2.275 -2.381 -3.130
y -2.381 -2.344 0.686
z -3.130 0.686 0.069
Polar
3z2-r20.137
x2-y23.079
xy-2.381
xz-3.130
yz0.686


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.008 -0.323 -0.009
y -0.323 7.576 0.003
z -0.009 0.003 6.793


<r2> (average value of r2) Å2
<r2> 133.651
(<r2>)1/2 11.561