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All results from a given calculation for C4H7NO (Ethoxyacetonitrile)

using model chemistry: LSDA/3-21G*

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/3-21G*
 hartrees
Energy at 0K-283.462774
Energy at 298.15K-283.470594
HF Energy-283.462774
Nuclear repulsion energy215.433673
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/3-21G*
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' 3095 3040 6.87      
2 A' 3008 2954 4.24      
3 A' 2894 2842 40.39      
4 A' 2877 2825 21.82      
5 A' 2327 2285 0.11      
6 A' 1526 1499 7.89      
7 A' 1505 1478 4.71      
8 A' 1490 1464 14.38      
9 A' 1407 1382 9.07      
10 A' 1397 1372 20.79      
11 A' 1326 1302 30.29      
12 A' 1144 1124 97.60      
13 A' 1108 1088 75.17      
14 A' 1027 1008 14.09      
15 A' 965 948 3.95      
16 A' 885 869 5.86      
17 A' 590 580 0.92      
18 A' 414 407 1.38      
19 A' 303 298 1.85      
20 A' 128 126 2.09      
21 A" 3095 3040 8.31      
22 A" 2923 2870 38.91      
23 A" 2889 2837 35.64      
24 A" 1481 1455 12.40      
25 A" 1271 1248 0.00      
26 A" 1222 1200 1.74      
27 A" 1159 1138 9.37      
28 A" 1025 1006 0.00      
29 A" 843 827 4.33      
30 A" 461 452 0.01      
31 A" 235 231 0.33      
32 A" 123 121 6.10      
33 A" 76 74 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 23108.8 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 22692.8 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 LSDA/3-21G*
ABC
0.50662 0.05031 0.04700

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.106 2.458 0.000
C2 -1.319 0.966 0.000
O3 0.000 0.375 0.000
C4 -0.108 -1.056 0.000
C5 1.222 -1.614 0.000
N6 2.301 -2.061 0.000
H7 -2.070 2.993 0.000
H8 -0.530 2.749 0.894
H9 -0.530 2.749 -0.894
H10 -1.893 0.641 -0.898
H11 -1.893 0.641 0.898
H12 -0.663 -1.431 -0.893
H13 -0.663 -1.431 0.893

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.50642.35823.65244.69045.65911.10261.10241.10242.17362.17364.01434.0143
C21.50641.44562.35713.62174.71902.16132.14432.14431.11421.11422.64102.6410
O32.35821.44561.43462.33453.35083.33762.59132.59132.11232.11232.12092.1209
C43.65242.35711.43461.44242.61014.49923.93073.93072.62202.62201.11691.1169
C54.69043.62172.33451.44241.16775.66264.78584.78583.94983.94982.09442.0944
N65.65914.71903.35082.61011.16776.68195.65215.65215.06975.06973.15943.1594
H71.10262.16133.33764.49925.66266.68191.79711.79712.52342.52344.72734.7273
H81.10242.14432.59133.93074.78585.65211.79711.78773.08362.50974.54754.1816
H91.10242.14432.59133.93074.78585.65211.79711.78772.50973.08364.18164.5475
H102.17361.11422.11232.62203.94985.06972.52343.08362.50971.79572.40993.0027
H112.17361.11422.11232.62203.94985.06972.52342.50973.08361.79573.00272.4099
H124.01432.64102.12091.11692.09443.15944.72734.54754.18162.40993.00271.7868
H134.01432.64102.12091.11692.09443.15944.72734.18164.54753.00272.40991.7868

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 106.025 C1 C2 H10 111.194
C1 C2 H11 111.194 C2 C1 H7 110.923
C2 C1 H8 109.585 C2 C1 H9 109.585
C2 O3 C4 109.847 O3 C2 H10 110.548
O3 C2 H11 110.548 O3 C4 C5 108.470
O3 C4 H12 111.853 O3 C4 H13 111.853
C4 C5 N6 179.718 C5 C4 H12 109.179
C5 C4 H13 109.179 H7 C1 H8 109.174
H7 C1 H9 109.174 H8 C1 H9 108.356
H10 C2 H11 107.376 H12 C4 H13 106.247
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability