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: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-249.367741
Energy at 298.15K-249.374439
Nuclear repulsion energy197.091251
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 BLYP/6-31G(2df,p)
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 3097 3080 6.92      
2 A 3068 3051 10.65      
3 A 3042 3026 24.23      
4 A 3034 3018 26.11      
5 A 3005 2988 1.56      
6 A 2967 2951 28.25      
7 A 2936 2920 15.17      
8 A 2229 2217 10.84      
9 A 1616 1607 14.74      
10 A 1469 1461 3.81      
11 A 1462 1454 4.36      
12 A 1441 1433 3.79      
13 A 1387 1380 0.15      
14 A 1366 1358 1.33      
15 A 1302 1294 4.34      
16 A 1256 1249 0.00      
17 A 1227 1220 0.40      
18 A 1109 1103 0.46      
19 A 1056 1050 2.17      
20 A 988 982 5.51      
21 A 964 958 0.73      
22 A 935 930 3.04      
23 A 837 833 3.39      
24 A 787 782 6.12      
25 A 749 745 23.53      
26 A 656 652 1.47      
27 A 562 559 0.64      
28 A 388 386 0.25      
29 A 360 358 0.12      
30 A 238 236 0.74      
31 A 211 210 2.78      
32 A 142 141 4.52      
33 A 58 58 0.97      

Unscaled Zero Point Vibrational Energy (zpe) 22971.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 22844.7 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 BLYP/6-31G(2df,p)
ABC
0.25628 0.06426 0.05533

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.780 -0.112 -0.081
N2 -2.518 -1.021 -0.028
C3 -0.903 1.013 -0.156
H4 -1.369 1.952 -0.466
C5 0.416 0.967 0.134
H6 0.983 1.899 0.035
C7 1.201 -0.243 0.563
H8 0.535 -1.115 0.653
H9 1.616 -0.051 1.570
C10 2.373 -0.560 -0.403
H11 2.000 -0.803 -1.409
H12 3.060 0.296 -0.493
H13 2.952 -1.421 -0.034

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 C10 H11 H12 H13
C11.17221.42802.13912.45603.41893.05212.62683.77664.18944.06564.87454.9091
N21.17222.60003.21703.54774.55913.84483.12874.53704.92704.72945.75035.4839
C31.42802.60001.09281.35202.09262.55402.69263.23433.64333.64704.04214.5606
H42.13913.21701.09282.12552.40503.53283.77894.13164.50774.45324.72865.4980
C52.45603.54771.35202.12551.09561.50442.14862.13072.53942.83212.79863.4863
H63.41894.55912.09262.40501.09562.21733.10942.56202.85923.22852.67673.8605
C73.05213.84482.55403.53281.50442.21731.10091.10621.55182.20072.20552.1928
H82.62683.12872.69263.77892.14863.10941.10091.77292.19152.54913.11192.5312
H93.77664.53703.23434.13162.13072.56201.10621.77292.17383.09692.54252.4965
C104.18944.92703.64334.50772.53942.85921.55182.19152.17381.10051.10181.1003
H114.06564.72943.64704.45322.83213.22852.20072.54913.09691.10051.78091.7827
H124.87455.75034.04214.72862.79862.67672.20553.11192.54251.10181.78091.7807
H134.90915.48394.56065.49803.48633.86052.19282.53122.49651.10031.78271.7807

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 115.480 C1 C3 C5 124.107
N2 C1 C3 178.772 C3 C5 H6 117.133
C3 C5 C7 126.712 H4 C3 C5 120.413
C5 C7 H8 110.148 C5 C7 H9 108.437
C5 C7 C10 112.373 H6 C5 C7 116.149
C7 C10 H11 110.991 C7 C10 H12 111.299
C7 C10 H13 110.383 H8 C7 H9 106.879
H8 C7 C10 110.248 H9 C7 C10 108.572
H11 C10 H12 107.927 H11 C10 H13 108.192
H12 C10 H13 107.926
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.291      
2 N -0.357      
3 C -0.170      
4 H 0.113      
5 C 0.040      
6 H 0.090      
7 C -0.230      
8 H 0.118      
9 H 0.105      
10 C -0.334      
11 H 0.118      
12 H 0.106      
13 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.303 2.379 0.046 4.070
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.396 -5.501 0.921
y -5.501 -35.883 -0.600
z 0.921 -0.600 -36.446
Traceless
 xyz
x -6.232 -5.501 0.921
y -5.501 3.538 -0.600
z 0.921 -0.600 2.694
Polar
3z2-r25.388
x2-y2-6.514
xy-5.501
xz0.921
yz-0.600


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.395 1.034 0.542
y 1.034 8.601 -0.297
z 0.542 -0.297 5.941


<r2> (average value of r2) Å2
<r2> 204.765
(<r2>)1/2 14.310