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All results from a given calculation for C4H8O2 (Ethyl acetate)

using model chemistry: LSDA/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/TZVP
 hartrees
Energy at 0K-306.214183
Energy at 298.15K 
HF Energy-306.214183
Nuclear repulsion energy245.298851
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 LSDA/TZVP
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' 3117 3081 1.03      
2 A' 3071 3035 9.30      
3 A' 2996 2961 0.21      
4 A' 2985 2951 11.13      
5 A' 2974 2940 11.68      
6 A' 1795 1774 246.38      
7 A' 1449 1432 11.91      
8 A' 1425 1408 3.23      
9 A' 1398 1381 15.89      
10 A' 1373 1357 20.40      
11 A' 1343 1327 143.70      
12 A' 1319 1304 23.61      
13 A' 1257 1242 302.44      
14 A' 1118 1105 3.62      
15 A' 1082 1069 84.95      
16 A' 977 966 10.12      
17 A' 961 950 4.38      
18 A' 850 840 6.31      
19 A' 644 637 4.78      
20 A' 425 420 0.92      
21 A' 369 365 10.18      
22 A' 194 191 5.57      
23 A" 3070 3035 14.27      
24 A" 3070 3034 0.21      
25 A" 3012 2977 8.29      
26 A" 1412 1396 10.86      
27 A" 1400 1384 14.22      
28 A" 1246 1231 0.96      
29 A" 1132 1119 4.33      
30 A" 1018 1006 7.27      
31 A" 777 768 2.08      
32 A" 592 585 2.77      
33 A" 262 259 1.14      
34 A" 157 156 4.46      
35 A" 41 41 0.49      
36 A" 38i 38i 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 25136.1 cm-1
Scaled (by 0.9884) Zero Point Vibrational Energy (zpe) 24844.5 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 LSDA/TZVP
ABC
0.28517 0.07121 0.05887

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.290 0.040 0.000
C2 -0.907 -0.500 0.000
O3 0.000 0.488 0.000
O4 -0.602 -1.668 0.000
C5 1.361 0.059 0.000
C6 2.222 1.278 0.000
H7 -3.007 -0.788 0.000
H8 -2.450 0.675 0.884
H9 -2.450 0.675 -0.884
H10 1.532 -0.578 0.884
H11 1.532 -0.578 -0.884
H12 3.283 0.991 0.000
H13 2.033 1.894 -0.891
H14 2.033 1.894 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.48482.33372.40153.65094.67871.09491.09961.09963.97173.97175.65394.78814.7881
C21.48481.34161.20722.33553.59872.11932.13122.13122.59582.59584.44763.89523.8952
O32.33371.34162.23901.42682.35783.26642.61122.61122.06542.06543.32132.62772.6277
O42.40151.20722.23902.61434.08092.56063.11203.11202.55472.55474.70824.51994.5199
C53.65092.33551.42682.61431.49274.44873.96013.96011.10291.10292.13672.14832.1483
C64.67873.59872.35784.08091.49275.62184.79274.79272.16822.16821.09941.09941.0994
H71.09492.11933.26642.56064.44875.62181.79721.79724.62904.62906.53665.77855.7785
H81.09962.13122.61123.11203.96014.79271.79721.76714.17464.53355.80954.97384.6465
H91.09962.13122.61123.11203.96014.79271.79721.76714.53354.17465.80954.64654.9738
H103.97172.59582.06542.55471.10292.16824.62904.17464.53351.76852.51183.08422.5221
H113.97172.59582.06542.55471.10292.16824.62904.53354.17461.76852.51182.52213.0842
H125.65394.44763.32134.70822.13671.09946.53665.80955.80952.51182.51181.78051.7805
H134.78813.89522.62774.51992.14831.09945.77854.97384.64653.08422.52211.78051.7819
H144.78813.89522.62774.51992.14831.09945.77854.64654.97382.52213.08421.78051.7819

picture of Ethyl acetate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 111.215 C1 C2 O4 125.959
C2 C1 H7 109.545 C2 C1 H8 110.207
C2 C1 H9 110.207 C2 O3 C5 115.018
O3 C2 O4 122.826 O3 C5 C6 107.702
O3 C5 H10 108.791 O3 C5 H11 108.791
C5 C6 H12 110.106 C5 C6 H13 111.039
C5 C6 H14 111.039 C6 C5 H10 112.435
C6 C5 H11 112.435 H7 C1 H8 109.959
H7 C1 H9 109.959 H8 C1 H9 106.933
H10 C5 H11 106.597 H12 C6 H13 108.143
H12 C6 H14 108.143 H13 C6 H14 108.268
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.522      
2 C 0.211      
3 O -0.157      
4 O -0.287      
5 C -0.228      
6 C -0.462      
7 H 0.195      
8 H 0.188      
9 H 0.188      
10 H 0.185      
11 H 0.185      
12 H 0.165      
13 H 0.170      
14 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.246 2.026 0.000 2.041
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.714 -1.076 0.000
y -1.076 -43.402 0.000
z 0.000 0.000 -36.062
Traceless
 xyz
x 9.018 -1.076 0.000
y -1.076 -10.014 0.000
z 0.000 0.000 0.996
Polar
3z2-r21.992
x2-y212.688
xy-1.076
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.962 0.517 0.000
y 0.517 8.640 0.000
z 0.000 0.000 6.788


<r2> (average value of r2) Å2
<r2> 198.329
(<r2>)1/2 14.083