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All results from a given calculation for C5H9N (Pentanenitrile)

using model chemistry: MP2/CEP-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/CEP-31G*
 hartrees
Energy at 0K-43.113700
Energy at 298.15K-43.123079
HF Energy-42.347438
Nuclear repulsion energy114.591492
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/CEP-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' 3183 3022 37.18      
2 A' 3110 2953 25.18      
3 A' 3100 2943 18.64      
4 A' 3088 2931 17.42      
5 A' 3084 2928 37.62      
6 A' 2172 2062 0.12      
7 A' 1533 1456 8.96      
8 A' 1522 1445 1.51      
9 A' 1517 1440 1.40      
10 A' 1506 1430 3.11      
11 A' 1449 1376 2.32      
12 A' 1437 1364 2.41      
13 A' 1376 1307 1.28      
14 A' 1280 1215 1.58      
15 A' 1147 1089 4.38      
16 A' 1100 1044 0.22      
17 A' 1055 1001 0.74      
18 A' 942 895 0.03      
19 A' 919 872 4.22      
20 A' 519 493 1.99      
21 A' 385 366 0.59      
22 A' 271 257 0.43      
23 A' 119 113 5.05      
24 A" 3188 3026 80.34      
25 A" 3183 3022 11.51      
26 A" 3166 3005 9.40      
27 A" 3143 2984 4.58      
28 A" 1530 1452 9.31      
29 A" 1362 1293 0.19      
30 A" 1342 1274 0.33      
31 A" 1261 1198 0.00      
32 A" 1149 1091 0.40      
33 A" 947 899 0.55      
34 A" 799 758 0.13      
35 A" 734 697 5.63      
36 A" 350 333 0.00      
37 A" 242 230 0.08      
38 A" 118 112 0.14      
39 A" 90 85 3.63      

Unscaled Zero Point Vibrational Energy (zpe) 29207.5 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 27729.6 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/CEP-31G*
ABC
0.48273 0.04346 0.04112

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.407 0.000
C2 1.425 0.999 0.000
C3 1.402 2.545 0.000
C4 0.031 -1.142 0.000
N5 -2.462 -2.155 0.000
C6 -1.342 -1.721 0.000
H7 2.427 2.957 0.000
H8 -0.554 0.758 0.890
H9 -0.554 0.758 -0.890
H10 1.972 0.633 0.890
H11 1.972 0.633 -0.890
H12 0.877 2.927 -0.894
H13 0.877 2.927 0.894
H14 0.561 -1.518 -0.892
H15 0.561 -1.518 0.892

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.54332.55641.54973.55302.51603.51991.10571.10572.17502.17502.81412.81412.19512.1951
C21.54331.54532.55575.00573.88062.19872.18352.18351.10681.10682.19452.19452.80752.8075
C32.55641.54533.93386.08395.07221.10442.79502.79502.18412.18411.10491.10494.24394.2439
C41.54972.55573.93382.69031.48984.74802.17832.17832.77702.77704.25174.25171.10411.1041
N53.55305.00576.08392.69031.20087.07293.59383.59385.31235.31236.14616.14613.21563.2156
C62.51603.88065.07221.48981.20086.00722.74932.74934.16124.16125.22795.22792.11182.1118
H73.51992.19871.10444.74807.07296.00723.80963.80962.52952.52951.78921.78924.92984.9298
H81.10572.18352.79502.17833.59382.74933.80961.78072.52873.09263.15242.59903.09872.5346
H91.10572.18352.79502.17833.59382.74933.80961.78073.09262.52872.59903.15242.53463.0987
H102.17501.10682.18412.77705.31234.16122.52952.52873.09261.78003.10532.54193.12962.5726
H112.17501.10682.18412.77705.31234.16122.52953.09262.52871.78002.54193.10532.57263.1296
H122.81412.19451.10494.25176.14615.22791.78923.15242.59903.10532.54191.78744.45694.8014
H132.81412.19451.10494.25176.14615.22791.78922.59903.15242.54193.10531.78744.80144.4569
H142.19512.80754.24391.10413.21562.11184.92983.09872.53463.12962.57264.45694.80141.7845
H152.19512.80754.24391.10413.21562.11184.92982.53463.09872.57263.12964.80144.45691.7845

picture of Pentanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 111.720 C1 C2 H10 109.206
C1 C2 H11 109.206 C1 C4 C6 111.727
C1 C4 H14 110.489 C1 C4 H15 110.489
C2 C1 C4 111.438 C2 C1 H8 109.933
C2 C1 H9 109.933 C2 C3 H7 111.062
C2 C3 H12 110.693 C2 C3 H13 110.693
C3 C2 H10 109.772 C3 C2 H11 109.772
C4 C1 H8 109.086 C4 C1 H9 109.086
C4 C6 N5 178.309 C6 C4 H14 108.087
C6 C4 H15 108.087 H7 C3 H12 108.158
H7 C3 H13 108.158 H8 C1 H9 107.266
H10 C2 H11 107.048 H12 C3 H13 107.963
H14 C4 H15 107.830
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability