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 ((Z)-2-Pentenenitrile)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-248.692095
Energy at 298.15K-248.698886
HF Energy-247.856346
Nuclear repulsion energy197.728076
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/cc-pVDZ
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 3245 3091 2.39      
2 A 3198 3046 9.34      
3 A 3189 3038 19.05      
4 A 3183 3031 18.00      
5 A 3149 2999 1.72      
6 A 3084 2938 11.35      
7 A 3084 2937 27.18      
8 A 2174 2071 1.62      
9 A 1693 1613 1.54      
10 A 1503 1432 5.46      
11 A 1496 1425 6.66      
12 A 1479 1409 3.51      
13 A 1417 1349 0.73      
14 A 1406 1339 0.76      
15 A 1332 1269 2.34      
16 A 1296 1235 0.01      
17 A 1247 1188 0.33      
18 A 1139 1085 0.60      
19 A 1097 1045 3.57      
20 A 1055 1005 2.95      
21 A 982 936 0.35      
22 A 966 920 3.32      
23 A 879 837 3.42      
24 A 808 770 4.41      
25 A 762 726 33.69      
26 A 657 625 1.20      
27 A 558 531 0.74      
28 A 386 368 0.17      
29 A 359 342 0.12      
30 A 249 237 0.16      
31 A 211 201 2.93      
32 A 147 140 3.76      
33 A 53 51 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 23740.7 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 22613.0 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/cc-pVDZ
ABC
0.23987 0.06771 0.05732

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.738 -0.107 -0.083
N2 -2.449 -1.056 -0.007
C3 -0.881 1.048 -0.179
H4 -1.348 1.977 -0.520
C5 0.437 1.003 0.136
H6 1.010 1.933 0.025
C7 1.187 -0.216 0.590
H8 0.486 -1.053 0.745
H9 1.658 0.003 1.566
C10 2.275 -0.614 -0.420
H11 1.827 -0.872 -1.393
H12 2.988 0.213 -0.580
H13 2.843 -1.487 -0.058

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 C10 H11 H12 H13
C11.18821.44122.16522.45133.42463.00322.55443.77654.05923.87384.76314.7840
N21.18822.62943.26753.54784.57213.77943.02984.52354.76324.49845.61295.3097
C31.44122.62941.09441.35572.09852.54242.67123.25323.57533.53443.97884.5062
H42.16523.26751.09442.13612.42043.53033.76074.15714.45514.35384.68135.4562
C52.45133.54781.35572.13611.09871.50102.14462.13012.51032.78982.76523.4675
H63.42464.57212.09852.42041.09872.22883.11622.55372.87843.24772.69033.8808
C73.00323.77942.54243.53031.50102.22881.10321.10581.53702.18432.19042.1857
H82.55443.02982.67123.76072.14463.11621.10321.77822.18012.53013.10202.5277
H93.77654.52353.25324.15712.13012.55371.10581.77822.16943.09052.53462.5025
C104.05924.76323.57534.45512.51032.87841.53702.18012.16941.10241.10341.1021
H113.87384.49843.53444.35382.78983.24772.18432.53013.09051.10241.78531.7865
H124.76315.61293.97884.68132.76522.69032.19043.10202.53461.10341.78531.7841
H134.78405.30974.50625.45623.46753.88082.18572.52772.50251.10211.78651.7841

picture of (Z)-2-Pentenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.616 C1 C3 C5 122.401
N2 C1 C3 179.675 C3 C5 H6 117.129
C3 C5 C7 125.664 H4 C3 C5 120.983
C5 C7 H8 109.937 C5 C7 H9 108.645
C5 C7 C10 111.432 H6 C5 C7 117.190
C7 C10 H11 110.619 C7 C10 H12 111.047
C7 C10 H13 110.750 H8 C7 H9 107.218
H8 C7 C10 110.244 H9 C7 C10 109.255
H11 C10 H12 108.066 H11 C10 H13 108.264
H12 C10 H13 107.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability