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 C4H7NO (Ethoxyacetonitrile)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-285.704243
Energy at 298.15K-285.712073
HF Energy-284.830320
Nuclear repulsion energy215.996829
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 MP3/6-31G*
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' 3199 3002 18.49      
2 A' 3117 2925 11.21      
3 A' 3062 2874 31.65      
4 A' 3051 2864 28.28      
5 A' 2460 2309 0.41      
6 A' 1595 1497 2.55      
7 A' 1567 1471 3.12      
8 A' 1560 1464 4.68      
9 A' 1504 1411 11.14      
10 A' 1464 1374 17.26      
11 A' 1430 1342 65.50      
12 A' 1218 1143 174.97      
13 A' 1194 1121 21.29      
14 A' 1095 1028 16.78      
15 A' 989 929 12.06      
16 A' 936 878 3.63      
17 A' 562 528 1.00      
18 A' 434 408 1.20      
19 A' 304 285 2.41      
20 A' 134 126 3.42      
21 A" 3208 3011 18.43      
22 A" 3098 2908 9.28      
23 A" 3089 2899 60.79      
24 A" 1544 1449 5.89      
25 A" 1339 1257 2.07      
26 A" 1296 1217 3.28      
27 A" 1230 1155 7.25      
28 A" 1069 1003 1.72      
29 A" 851 799 0.49      
30 A" 363 341 2.03      
31 A" 263 247 0.47      
32 A" 112 105 7.28      
33 A" 76 71 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 24205.0 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 22718.8 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 MP3/6-31G*
ABC
0.51454 0.05000 0.04678

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.943 2.536 0.000
C2 -1.245 1.051 0.000
O3 0.000 0.358 0.000
C4 -0.186 -1.037 0.000
C5 1.139 -1.684 0.000
N6 2.163 -2.225 0.000
H7 -1.872 3.112 0.000
H8 -0.363 2.802 0.887
H9 -0.363 2.802 -0.887
H10 -1.829 0.768 -0.889
H11 -1.829 0.768 0.889
H12 -0.740 -1.373 -0.889
H13 -0.740 -1.373 0.889

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.51482.37293.65204.70515.68401.09401.09261.09262.16802.16804.01394.0139
C21.51481.42492.34163.62824.72742.15432.15162.15161.10071.10072.63122.6312
O32.37291.42491.40752.33813.36913.33032.62522.62522.07462.07462.08222.0822
C43.65202.34161.40751.47422.63234.47903.94433.94432.59792.59791.10011.1001
C54.70513.62822.33811.47421.15845.66314.81324.81323.95123.95122.10182.1018
N65.68404.72743.36912.63231.15846.69105.69545.69545.06835.06833.15373.1537
H71.09402.15433.33034.47905.66316.69101.77811.77812.50732.50734.71084.7108
H81.09262.15162.62523.94434.81325.69541.77811.77413.07252.50754.55304.1925
H91.09262.15162.62523.94434.81325.69541.77811.77412.50753.07254.19254.5530
H102.16801.10072.07462.59793.95125.06832.50733.07252.50751.77712.40242.9882
H112.16801.10072.07462.59793.95125.06832.50732.50753.07251.77712.98822.4024
H124.01392.63122.08221.10012.10183.15374.71084.55304.19252.40242.98821.7770
H134.01392.63122.08221.10012.10183.15374.71084.19254.55302.98822.40241.7770

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.608 C1 C2 H10 110.989
C1 C2 H11 110.989 C2 C1 H7 110.291
C2 C1 H8 110.167 C2 C1 H9 110.167
C2 O3 C4 111.531 O3 C2 H10 109.798
O3 C2 H11 109.798 O3 C4 C5 108.442
O3 C4 H12 111.691 O3 C4 H13 111.691
C4 C5 N6 178.200 C5 C4 H12 108.596
C5 C4 H13 108.596 H7 C1 H8 108.810
H7 C1 H9 108.810 H8 C1 H9 108.553
H10 C2 H11 107.663 H12 C4 H13 107.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability