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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-52.176048
Energy at 298.15K-52.183733
HF Energy-51.364846
Nuclear repulsion energy116.857312
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' 3201 3039 28.39      
2 A' 3102 2945 19.62      
3 A' 3060 2906 55.47      
4 A' 3052 2897 46.29      
5 A' 2181 2071 7.44      
6 A' 1551 1472 2.44      
7 A' 1527 1449 0.73      
8 A' 1525 1448 4.88      
9 A' 1472 1397 10.30      
10 A' 1430 1358 18.16      
11 A' 1399 1328 63.16      
12 A' 1169 1109 51.31      
13 A' 1160 1101 148.89      
14 A' 1065 1011 23.28      
15 A' 960 911 10.70      
16 A' 910 864 4.46      
17 A' 532 505 0.18      
18 A' 419 398 1.43      
19 A' 291 277 1.62      
20 A' 129 122 2.53      
21 A" 3214 3051 29.45      
22 A" 3121 2963 7.31      
23 A" 3110 2952 75.39      
24 A" 1511 1435 6.38      
25 A" 1315 1248 1.17      
26 A" 1273 1209 1.34      
27 A" 1199 1139 8.12      
28 A" 1041 989 2.62      
29 A" 834 792 1.31      
30 A" 339 322 0.39      
31 A" 256 243 0.51      
32 A" 115 109 7.77      
33 A" 73 69 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 23767.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 22564.8 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 MP2/CEP-31G*
ABC
0.50523 0.04867 0.04557

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 -1.043 2.531 0.000
C2 -1.292 1.018 0.000
O3 0.000 0.374 0.000
C4 -0.162 -1.041 0.000
C5 1.195 -1.667 0.000
N6 2.272 -2.198 0.000
H7 -2.008 3.069 0.000
H8 -0.471 2.821 0.897
H9 -0.471 2.821 -0.897
H10 -1.862 0.706 -0.900
H11 -1.862 0.706 0.900
H12 -0.707 -1.389 -0.901
H13 -0.707 -1.389 0.901

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.53312.39563.67864.75785.77511.10461.10261.10262.19342.19344.03644.0364
C21.53311.44382.34853.66074.80072.17212.17422.17421.11011.11012.63642.6364
O32.39561.44381.42432.36603.43203.36042.64752.64752.09462.09462.10282.1028
C43.67862.34851.42431.49542.69524.50503.97593.97592.59812.59811.10901.1090
C54.75783.66072.36601.49541.20005.71794.87054.87053.97393.97392.12322.1232
N65.77514.80073.43202.69521.20006.78665.78905.78905.13155.13153.21523.2152
H71.10462.17213.36044.50505.71796.78661.79671.79672.53282.53284.73084.7308
H81.10262.17422.64753.97594.87055.78901.79671.79383.10412.53104.58364.2163
H91.10262.17422.64753.97594.87055.78901.79671.79382.53103.10414.21634.5836
H102.19341.11012.09462.59813.97395.13152.53283.10412.53101.80022.39272.9949
H112.19341.11012.09462.59813.97395.13152.53282.53103.10411.80022.99492.3927
H124.03642.63642.10281.10902.12323.21524.73084.58364.21632.39272.99491.8023
H134.03642.63642.10281.10902.12323.21524.73084.21634.58362.99492.39271.8023

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.129 C1 C2 H10 111.153
C1 C2 H11 111.153 C2 C1 H7 109.801
C2 C1 H8 110.087 C2 C1 H9 110.087
C2 O3 C4 109.938 O3 C2 H10 109.514
O3 C2 H11 109.514 O3 C4 C5 108.232
O3 C4 H12 111.604 O3 C4 H13 111.604
C4 C5 N6 178.522 C5 C4 H12 108.301
C5 C4 H13 108.301 H7 C1 H8 108.985
H7 C1 H9 108.985 H8 C1 H9 108.866
H10 C2 H11 108.358 H12 C4 H13 108.691
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability