return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H7N ((E)-3-Pentenenitrile)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-247.024199
Energy at 298.15K-247.030949
HF Energy-246.454098
Nuclear repulsion energy192.421110
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 MP2/3-21G*
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 3180 3025 16.72      
2 A 3165 3011 17.14      
3 A 3148 2995 3.91      
4 A 3140 2987 15.79      
5 A 3125 2973 1.96      
6 A 3081 2931 4.93      
7 A 3077 2927 14.69      
8 A 2142 2037 4.28      
9 A 1714 1631 0.25      
10 A 1595 1518 8.16      
11 A 1585 1508 7.36      
12 A 1558 1482 11.29      
13 A 1496 1423 4.35      
14 A 1413 1344 2.19      
15 A 1384 1317 0.45      
16 A 1375 1308 1.14      
17 A 1299 1236 0.21      
18 A 1165 1108 1.97      
19 A 1134 1079 0.02      
20 A 1050 999 0.70      
21 A 1021 971 41.35      
22 A 1005 956 7.39      
23 A 935 890 2.22      
24 A 900 856 2.38      
25 A 778 740 0.40      
26 A 592 563 1.71      
27 A 458 436 0.33      
28 A 417 397 0.01      
29 A 311 296 1.12      
30 A 274 260 3.83      
31 A 195 185 1.02      
32 A 142 135 2.34      
33 A 70 66 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 23961.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 22794.3 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 MP2/3-21G*
ABC
0.39956 0.04903 0.04624

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.629 0.251 0.039
H2 3.068 -1.237 -0.744
H3 2.739 -0.966 0.982
C4 2.811 -0.478 0.004
H5 1.465 0.716 -1.309
C6 1.499 0.201 -0.349
H7 0.422 -0.317 1.397
C8 0.411 0.198 0.437
C9 -0.897 0.896 0.068
N10 -2.896 -0.856 -0.139
C11 -2.010 -0.070 -0.048
H12 -0.776 1.417 -0.891
H13 -1.157 1.647 0.826

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 C9 N10 C11 H12 H13
H11.77301.77901.09642.59202.16603.52903.24334.57256.62085.64884.65095.0472
H21.77301.77861.09642.58862.16443.52563.24234.57506.00625.25604.67305.3504
H31.77901.77861.09563.11522.16122.44142.65934.18655.74604.94094.64164.6932
C41.09641.09641.09562.22801.51922.77022.53103.95565.72144.83854.15474.5755
H52.59202.58863.11522.22801.09083.07882.10452.74044.78123.77932.38503.5074
C62.16602.16442.16121.51921.09082.11521.34182.52964.52493.53182.63603.2439
H73.52903.52562.44142.77023.07882.11521.08942.23163.69532.83923.11102.5835
C83.24333.24232.65932.53102.10451.34181.08941.52833.51812.48322.15852.1697
C94.57254.57504.18653.95562.74042.52962.23161.52832.66611.47811.09811.0982
N106.62086.00625.74605.72144.78124.52493.69533.51812.66611.18803.19853.1969
C115.64885.25604.94094.83853.77933.53182.83922.48321.47811.18802.10862.1070
H124.65094.67304.64164.15472.38502.63603.11102.15851.09813.19852.10861.7744
H135.04725.35044.69324.57553.50743.24392.58352.16971.09823.19692.10701.7744

picture of (E)-3-Pentenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 107.910 H1 C4 H3 108.505
H1 C4 C6 110.776 H2 C4 H3 108.474
H2 C4 C6 110.650 H3 C4 C6 110.440
C4 C6 H5 116.255 C4 C6 C8 124.305
H5 C6 C8 119.440 C6 C8 H7 120.563
C6 C8 C9 123.482 H7 C8 C9 115.954
C8 C9 C11 111.365 C8 C9 H12 109.454
C8 C9 H13 110.332 C9 C11 N10 179.399
C11 C9 H12 108.976 C11 C9 H13 108.846
H12 C9 H13 107.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability