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All results from a given calculation for C5H7N ((E)-2-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 CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-247.026776
Energy at 298.15K-247.033733
HF Energy-246.456185
Nuclear repulsion energy194.515174
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' 3218 3062 1.60      
2 A' 3171 3017 7.64      
3 A' 3161 3007 22.28      
4 A' 3088 2937 12.28      
5 A' 3074 2924 9.84      
6 A' 2139 2035 3.11      
7 A' 1687 1604 4.12      
8 A' 1608 1530 5.88      
9 A' 1575 1498 6.60      
10 A' 1495 1422 6.59      
11 A' 1432 1362 2.37      
12 A' 1388 1321 0.20      
13 A' 1359 1293 6.12      
14 A' 1131 1076 0.73      
15 A' 1071 1019 1.46      
16 A' 982 934 3.39      
17 A' 885 842 2.83      
18 A' 586 557 0.29      
19 A' 533 507 0.14      
20 A' 279 265 0.92      
21 A' 162 154 2.77      
22 A" 3164 3010 23.48      
23 A" 3104 2953 7.47      
24 A" 1603 1525 7.30      
25 A" 1361 1295 0.01      
26 A" 1174 1117 0.65      
27 A" 1020 970 41.86      
28 A" 889 846 7.25      
29 A" 784 746 1.30      
30 A" 517 492 2.75      
31 A" 295 281 0.02      
32 A" 179 170 0.00      
33 A" 116 110 2.54      

Unscaled Zero Point Vibrational Energy (zpe) 24115.0 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 22940.6 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 MP2/3-21G*
ABC
0.47011 0.05102 0.04683

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.467 2.830 0.000
C2 -0.801 1.844 0.000
H3 1.076 0.798 0.000
C4 0.000 0.651 0.000
H5 -1.620 -0.694 0.000
C6 -0.535 -0.586 0.000
H7 -0.035 -2.468 0.881
H8 -0.035 -2.468 -0.881
C9 0.261 -1.881 0.000
H10 2.292 -2.673 0.000
H11 2.124 -1.148 -0.890
H12 2.124 -1.148 0.890
C13 1.799 -1.696 0.000

Atom - Atom Distances (Å)
  N1 C2 H3 C4 H5 C6 H7 H8 C9 H10 H11 H12 C13
N11.18993.25532.62723.52723.54155.55825.55825.01866.66465.43225.43225.5812
C21.18992.14891.43742.66672.44514.46704.46703.87405.47484.27764.27764.3920
H33.25532.14891.08613.08112.12413.56043.56042.80053.67812.38242.38242.5964
C42.62721.43741.08612.10511.34783.24063.24062.54554.03752.92182.92182.9566
H53.52722.66673.08112.10511.09032.53642.53642.22474.38403.87483.87483.5625
C63.54152.44512.12411.34781.09032.13652.13651.52023.51362.85942.85942.5839
H75.55824.46703.56043.24062.53642.13651.76141.09892.49663.08902.53082.1762
H85.55824.46703.56043.24062.53642.13651.76141.09892.49662.53083.08902.1762
C95.01863.87402.80052.54552.22471.52021.09891.09892.17942.19102.19101.5487
H106.66465.47483.67814.03754.38403.51362.49662.49662.17941.77461.77461.0949
H115.43224.27762.38242.92183.87482.85943.08902.53082.19101.77461.78081.0950
H125.43224.27762.38242.92183.87482.85942.53083.08902.19101.77461.78081.0950
C135.58124.39202.59642.95663.56252.58392.17622.17621.54871.09491.09501.0950

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 179.837 C2 C4 H3 116.073
C2 C4 C6 122.747 H3 C4 C6 121.180
C4 C6 H5 119.032 C4 C6 C9 125.033
H5 C6 C9 115.935 C6 C9 H7 108.252
C6 C9 H8 108.252 C6 C9 C13 114.700
H7 C9 H8 106.543 H7 C9 C13 109.389
H8 C9 C13 109.389 C9 C13 H10 109.871
C9 C13 H11 110.774 C9 C13 H12 110.774
H10 C13 H11 108.265 H10 C13 H12 108.265
H11 C13 H12 108.816
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability