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)-2-Pentenenitrile)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-248.723698
Energy at 298.15K-248.730507
HF Energy-247.886076
Nuclear repulsion energy195.727099
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 MP2/6-311G*
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' 3234 3073 1.79      
2 A' 3188 3030 7.20      
3 A' 3174 3017 21.61      
4 A' 3083 2929 16.46      
5 A' 3067 2914 14.09      
6 A' 2187 2078 0.05      
7 A' 1701 1616 8.20      
8 A' 1547 1470 7.37      
9 A' 1508 1433 10.72      
10 A' 1453 1381 8.97      
11 A' 1407 1337 4.63      
12 A' 1349 1282 0.55      
13 A' 1318 1252 3.16      
14 A' 1136 1080 2.46      
15 A' 1081 1028 2.74      
16 A' 993 943 2.49      
17 A' 918 873 4.17      
18 A' 578 549 0.56      
19 A' 503 478 0.02      
20 A' 264 251 0.98      
21 A' 151 143 3.92      
22 A" 3171 3013 23.49      
23 A" 3103 2949 8.09      
24 A" 1542 1466 11.01      
25 A" 1316 1251 0.20      
26 A" 1127 1071 1.44      
27 A" 992 943 41.70      
28 A" 848 806 7.23      
29 A" 739 702 0.39      
30 A" 470 447 4.48      
31 A" 291 276 0.00      
32 A" 174 165 0.01      
33 A" 115 109 3.37      

Unscaled Zero Point Vibrational Energy (zpe) 23862.8 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 22676.8 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 MP2/6-311G*
ABC
0.48379 0.05150 0.04736

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.535 2.766 0.000
C2 -0.842 1.818 0.000
H3 1.071 0.842 0.000
C4 0.000 0.659 0.000
H5 -1.588 -0.709 0.000
C6 -0.505 -0.589 0.000
H7 0.000 -2.445 0.871
H8 0.000 -2.445 -0.871
C9 0.304 -1.850 0.000
H10 2.317 -2.632 0.000
H11 2.150 -1.115 -0.886
H12 2.150 -1.115 0.886
C13 1.816 -1.662 0.000

Atom - Atom Distances (Å)
  N1 C2 H3 C4 H5 C6 H7 H8 C9 H10 H11 H12 C13
N11.17523.23922.60703.47603.50965.50255.50254.96976.63225.42515.42515.5538
C21.17522.14671.43192.63472.42974.43174.43173.84285.45714.28214.28214.3789
H33.23922.14671.08613.07822.12803.56523.56522.79963.69142.40442.40442.6130
C42.60701.43191.08612.09631.34603.22443.22442.52804.02542.92502.92502.9476
H53.47602.63473.07822.09631.09012.50942.50942.20974.35303.86293.86293.5355
C63.50962.42972.12801.34601.09012.11222.11221.49883.48412.84752.84752.5574
H75.50254.43173.56523.22442.50942.11221.74291.09782.48213.07822.52752.1611
H85.50254.43173.56523.22442.50942.11221.74291.09782.48212.52753.07822.1611
C94.96973.84282.79962.52802.20971.49881.09781.09782.15952.17532.17531.5242
H106.63225.45713.69144.02544.35303.48412.48212.48212.15951.76461.76461.0918
H115.42514.28212.40442.92503.86292.84753.07822.52752.17531.76461.77141.0929
H125.42514.28212.40442.92503.86292.84752.52753.07822.17531.76461.77141.0929
C135.55384.37892.61302.94763.53552.55742.16112.16111.52421.09181.09291.0929

picture of (E)-2-Pentenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C4 179.840 C2 C4 H3 116.305
C2 C4 C6 121.979 H3 C4 C6 121.716
C4 C6 H5 118.371 C4 C6 C9 125.327
H5 C6 C9 116.302 C6 C9 H7 107.874
C6 C9 H8 107.874 C6 C9 C13 115.556
H7 C9 H8 105.086 H7 C9 C13 109.954
H8 C9 C13 109.954 C9 C13 H10 110.189
C9 C13 H11 111.376 C9 C13 H12 111.376
H10 C13 H11 107.743 H10 C13 H12 107.743
H11 C13 H12 108.266
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability