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All results from a given calculation for HCOOC2H5 (Ethyl formate)

using model chemistry: CISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
Energy calculated at CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-267.756408
Energy at 298.15K 
HF Energy-266.929493
Nuclear repulsion energy179.760193
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 CISD/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at CISD/6-311+G(3df,2p)
ABC
0.61879 0.09835 0.08759

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.158 -0.284 0.000
C2 -0.681 -0.570 0.000
O3 0.000 0.681 0.000
C4 1.315 0.632 0.000
O5 1.971 -0.356 0.000
H6 -2.710 -1.215 0.000
H7 -2.439 0.282 0.878
H8 -2.439 0.282 -0.878
H9 -0.379 -1.130 -0.874
H10 -0.379 -1.130 0.874
H11 1.725 1.639 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50422.36403.59194.12961.08221.08151.08152.15552.15554.3325
C21.50421.42492.33052.66102.12862.14182.14181.08161.08163.2662
O32.36401.42491.31622.22723.30742.62312.62312.04702.04701.9726
C43.59192.33051.31621.18554.42853.87173.87172.59622.59621.0871
O54.12962.66102.22721.18554.75914.54194.54192.62432.62432.0099
H61.08222.12863.30744.42854.75911.75591.75592.49112.49115.2733
H71.08152.14182.62313.87174.54191.75591.75563.05132.49794.4666
H81.08152.14182.62313.87174.54191.75591.75562.49793.05134.4666
H92.15551.08162.04702.59622.62432.49113.05132.49791.74893.5859
H102.15551.08162.04702.59622.62432.49112.49793.05131.74893.5859
H114.33253.26621.97261.08712.00995.27334.46664.46663.58593.5859

picture of Ethyl formate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.593 C1 C2 H9 111.904
C1 C2 H10 111.904 C2 C1 H6 109.692
C2 C1 H7 110.792 C2 C1 H8 110.792
C2 O3 C4 116.413 O3 C2 H9 108.736
O3 C2 H10 108.736 O3 C4 O5 125.737
O3 C4 H11 109.961 O5 C4 H11 124.302
H6 C1 H7 108.492 H6 C1 H8 108.492
H7 C1 H8 108.515 H9 C2 H10 107.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability