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All results from a given calculation for C4H7NO (Ethoxyacetonitrile)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-285.891745
Energy at 298.15K-285.899559
HF Energy-284.858528
Nuclear repulsion energy216.504133
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 MP2/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3218 3040 9.79      
2 A' 3120 2947 7.60      
3 A' 3049 2880 45.78      
4 A' 3045 2876 10.12      
5 A' 2223 2100 6.79      
6 A' 1560 1473 3.80      
7 A' 1531 1446 0.58      
8 A' 1526 1441 5.93      
9 A' 1466 1385 9.20      
10 A' 1424 1345 14.62      
11 A' 1396 1318 52.47      
12 A' 1192 1126 182.01      
13 A' 1166 1101 17.38      
14 A' 1076 1017 16.25      
15 A' 967 913 6.18      
16 A' 917 866 3.85      
17 A' 552 522 1.26      
18 A' 427 403 0.92      
19 A' 301 284 2.47      
20 A' 133 125 3.28      
21 A" 3225 3046 9.96      
22 A" 3096 2924 11.95      
23 A" 3088 2917 41.54      
24 A" 1513 1429 5.58      
25 A" 1318 1245 2.45      
26 A" 1277 1206 3.14      
27 A" 1205 1138 5.98      
28 A" 1049 991 0.95      
29 A" 833 787 0.81      
30 A" 367 347 1.89      
31 A" 256 242 0.31      
32 A" 117 110 5.81      
33 A" 80 75 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 23854.5 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 22530.6 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 MP2/6-31G(2df,p)
ABC
0.51849 0.05032 0.04709

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.993 2.507 0.000
C2 -1.258 1.018 0.000
O3 0.000 0.363 0.000
C4 -0.166 -1.030 0.000
C5 1.159 -1.653 0.000
N6 2.205 -2.182 0.000
H7 -1.933 3.059 0.000
H8 -0.422 2.786 0.885
H9 -0.422 2.786 -0.885
H10 -1.835 0.720 -0.886
H11 -1.835 0.720 0.886
H12 -0.718 -1.373 -0.886
H13 -0.718 -1.373 0.886

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.51222.36273.63184.68315.67541.09051.08961.08962.16512.16513.98933.9893
C21.51221.41862.32063.60204.71532.14962.14722.14721.09881.09882.60662.6066
O32.36271.41861.40242.32493.36713.31762.61452.61452.06902.06902.07722.0772
C43.63182.32061.40241.46422.63674.45403.92593.92592.57522.57521.09911.0991
C54.68313.60202.32491.46421.17275.63574.79474.79473.92153.92152.09452.0945
N65.67544.71533.36712.63671.17276.67775.68935.68935.05285.05283.16033.1603
H71.09052.14963.31764.45405.63576.67771.77241.77242.50312.50314.68024.6802
H81.08962.14722.61453.92594.79475.68931.77241.76933.06682.50384.53084.1704
H91.08962.14722.61453.92594.79475.68931.77241.76932.50383.06684.17044.5308
H102.16511.09882.06902.57523.92155.05282.50313.06682.50381.77262.37242.9614
H112.16511.09882.06902.57523.92155.05282.50312.50383.06681.77262.96142.3724
H123.98932.60662.07721.09912.09453.16034.68024.53084.17042.37242.96141.7722
H133.98932.60662.07721.09912.09453.16034.68024.17044.53082.96142.37241.7722

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.407 C1 C2 H10 111.049
C1 C2 H11 111.049 C2 C1 H7 110.315
C2 C1 H8 110.174 C2 C1 H9 110.174
C2 O3 C4 110.696 O3 C2 H10 109.905
O3 C2 H11 109.905 O3 C4 C5 108.375
O3 C4 H12 111.709 O3 C4 H13 111.709
C4 C5 N6 178.389 C5 C4 H12 108.756
C5 C4 H13 108.756 H7 C1 H8 108.784
H7 C1 H9 108.784 H8 C1 H9 108.565
H10 C2 H11 107.538 H12 C4 H13 107.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability