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=FULL/6-31G*

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=FULL/6-31G*
 hartrees
Energy at 0K-248.664061
Energy at 298.15K-248.670899
HF Energy-247.837547
Nuclear repulsion energy195.884737
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=FULL/6-31G*
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' 3260 3071 1.44      
2 A' 3212 3026 6.98      
3 A' 3204 3019 19.30      
4 A' 3112 2932 13.59      
5 A' 3088 2909 12.34      
6 A' 2209 2082 0.00      
7 A' 1728 1628 8.10      
8 A' 1572 1482 5.73      
9 A' 1537 1448 7.53      
10 A' 1476 1391 6.62      
11 A' 1428 1346 5.98      
12 A' 1369 1290 0.30      
13 A' 1336 1258 3.03      
14 A' 1150 1084 2.38      
15 A' 1097 1033 2.38      
16 A' 1009 951 2.14      
17 A' 930 876 3.38      
18 A' 581 548 0.67      
19 A' 506 476 0.04      
20 A' 267 251 1.09      
21 A' 152 143 4.35      
22 A" 3201 3016 20.49      
23 A" 3126 2945 8.99      
24 A" 1565 1475 8.27      
25 A" 1331 1254 0.14      
26 A" 1145 1079 1.24      
27 A" 1012 953 33.13      
28 A" 860 810 7.52      
29 A" 753 709 0.25      
30 A" 472 444 5.50      
31 A" 295 278 0.00      
32 A" 179 168 0.00      
33 A" 117 111 3.82      

Unscaled Zero Point Vibrational Energy (zpe) 24138.4 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 22743.2 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=FULL/6-31G*
ABC
0.48511 0.05163 0.04748

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.549 2.762 0.000
C2 -0.854 1.806 0.000
H3 1.068 0.851 0.000
C4 0.000 0.659 0.000
H5 -1.582 -0.711 0.000
C6 -0.499 -0.589 0.000
H7 0.014 -2.444 0.872
H8 0.014 -2.444 -0.872
C9 0.313 -1.848 0.000
H10 2.329 -2.622 0.000
H11 2.152 -1.104 -0.886
H12 2.152 -1.104 0.886
C13 1.823 -1.654 0.000

Atom - Atom Distances (Å)
  N1 C2 H3 C4 H5 C6 H7 H8 C9 H10 H11 H12 C13
N11.18233.24082.61203.47363.51215.50535.50534.97146.63525.42535.42535.5559
C21.18232.14641.42982.61992.42114.42434.42433.83505.45294.27694.27694.3741
H33.24082.14641.08543.07612.12843.56803.56802.80233.69452.40492.40492.6157
C42.61201.42981.08542.09261.34423.22343.22342.52594.02342.92002.92002.9446
H53.47362.61993.07612.09261.08962.51162.51162.20894.35243.85753.85753.5324
C63.51212.42112.12841.34421.08962.11272.11271.49723.48252.84222.84222.5540
H75.50534.42433.56803.22342.51162.11271.74371.09802.48053.07532.52342.1582
H85.50534.42433.56803.22342.51162.11271.74371.09802.48052.52343.07532.1582
C94.97143.83502.80232.52592.20891.49721.09801.09802.15992.17272.17271.5225
H106.63525.45293.69454.02344.35243.48252.48052.48052.15991.76591.76591.0925
H115.42534.27692.40492.92003.85752.84223.07532.52342.17271.76591.77211.0932
H125.42534.27692.40492.92003.85752.84222.52343.07532.17271.76591.77211.0932
C135.55594.37412.61572.94463.53242.55402.15822.15821.52251.09251.09321.0932

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 179.309 C2 C4 H3 116.495
C2 C4 C6 121.533 H3 C4 C6 121.972
C4 C6 H5 118.212 C4 C6 C9 125.397
H5 C6 C9 116.391 C6 C9 H7 108.008
C6 C9 H8 108.008 C6 C9 C13 115.502
H7 C9 H8 105.131 H7 C9 C13 109.833
H8 C9 C13 109.833 C9 C13 H10 110.291
C9 C13 H11 111.269 C9 C13 H12 111.269
H10 C13 H11 107.789 H10 C13 H12 107.789
H11 C13 H12 108.295
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability