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All results from a given calculation for C4H7NO (Ethoxyacetonitrile)

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-51.769641
Energy at 298.15K-51.777109
HF Energy-51.220567
Nuclear repulsion energy114.378013
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 MP2/CEP-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' 3150 3043 48.75      
2 A' 3049 2946 31.72      
3 A' 3028 2926 58.96      
4 A' 3014 2913 65.67      
5 A' 2037 1968 16.81      
6 A' 1545 1492 2.31      
7 A' 1530 1478 0.02      
8 A' 1527 1476 7.00      
9 A' 1460 1411 11.40      
10 A' 1437 1388 0.59      
11 A' 1389 1342 60.08      
12 A' 1147 1108 9.22      
13 A' 1073 1037 117.92      
14 A' 1005 971 28.96      
15 A' 932 901 9.70      
16 A' 851 822 10.21      
17 A' 508 491 0.16      
18 A' 397 384 1.70      
19 A' 273 264 1.79      
20 A' 120 116 1.96      
21 A" 3169 3063 53.36      
22 A" 3097 2993 26.28      
23 A" 3081 2978 82.63      
24 A" 1510 1459 6.41      
25 A" 1291 1248 0.03      
26 A" 1230 1188 0.71      
27 A" 1177 1137 9.75      
28 A" 1041 1006 3.21      
29 A" 842 814 1.81      
30 A" 319 308 0.02      
31 A" 232 224 0.81      
32 A" 98 95 12.11      
33 A" 61 59 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 23310.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 22524.5 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 MP2/CEP-31G
ABC
0.46661 0.04679 0.04362

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.916 2.633 0.000
C2 -1.293 1.127 0.000
O3 0.000 0.368 0.000
C4 -0.223 -1.098 0.000
C5 1.134 -1.763 0.000
N6 2.228 -2.317 0.000
H7 -1.839 3.254 0.000
H8 -0.318 2.877 0.901
H9 -0.318 2.877 -0.901
H10 -1.876 0.846 -0.908
H11 -1.876 0.846 0.908
H12 -0.787 -1.409 -0.908
H13 -0.787 -1.409 0.908

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.55302.44323.79554.85035.86401.11191.10851.10852.22232.22234.14494.1449
C21.55301.49882.46893.77294.92452.19642.19642.19641.11491.11492.74032.7403
O32.44321.49881.48352.41373.48883.42172.68422.68422.13852.13852.14542.1454
C43.79552.46891.48351.51032.73664.64274.07704.07702.70922.70921.11311.1131
C54.85033.77292.41371.51031.22645.83114.94404.94404.08544.08542.15362.1536
N65.86404.92453.48882.73661.22646.89705.85375.85375.26045.26043.27673.2767
H71.11192.19643.42174.64275.83116.89701.80711.80712.57352.57354.86564.8656
H81.10852.19642.68424.07704.94405.85371.80711.80223.13392.55924.67534.3112
H91.10852.19642.68424.07704.94405.85371.80711.80222.55923.13394.31124.6753
H102.22231.11492.13852.70924.08545.26042.57353.13392.55921.81532.50463.0934
H112.22231.11492.13852.70924.08545.26042.57352.55923.13391.81533.09342.5046
H124.14492.74032.14541.11312.15363.27674.86564.67534.31122.50463.09341.8157
H134.14492.74032.14541.11312.15363.27674.86564.31124.67533.09342.50461.8157

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 106.359 C1 C2 H10 111.767
C1 C2 H11 111.767 C2 C1 H7 109.911
C2 C1 H8 110.111 C2 C1 H9 110.111
C2 O3 C4 111.753 O3 C2 H10 108.923
O3 C2 H11 108.923 O3 C4 C5 107.452
O3 C4 H12 110.612 O3 C4 H13 110.612
C4 C5 N6 179.227 C5 C4 H12 109.423
C5 C4 H13 109.423 H7 C1 H8 108.955
H7 C1 H9 108.955 H8 C1 H9 108.766
H10 C2 H11 109.005 H12 C4 H13 109.287
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability