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All results from a given calculation for C4H5N ((Z)-2-Butenenitrile)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-209.544285
Energy at 298.15K-209.548772
HF Energy-208.845313
Nuclear repulsion energy141.275411
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 MP2/6-311G*
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' 3233 3073 3.84      
2 A' 3201 3042 9.13      
3 A' 3182 3024 2.27      
4 A' 3076 2924 8.30      
5 A' 2183 2074 0.79      
6 A' 1695 1611 2.38      
7 A' 1523 1447 16.22      
8 A' 1457 1385 8.47      
9 A' 1417 1347 2.25      
10 A' 1274 1211 0.40      
11 A' 1139 1083 0.38      
12 A' 978 930 13.15      
13 A' 915 870 1.34      
14 A' 662 630 1.58      
15 A' 395 375 0.10      
16 A' 159 151 4.09      
17 A" 3150 2993 9.48      
18 A" 1518 1443 11.08      
19 A" 1079 1026 1.07      
20 A" 960 912 0.07      
21 A" 742 705 46.55      
22 A" 510 485 3.50      
23 A" 276 262 2.30      
24 A" 138 131 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 17431.7 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 16565.3 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 MP2/6-311G*
ABC
0.39391 0.11600 0.09112

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.220 0.254 0.000
N2 -2.208 -0.382 0.000
C3 0.000 1.006 0.000
H4 -0.098 2.087 0.000
C5 1.213 0.422 0.000
H6 2.081 1.080 0.000
C7 1.474 -1.050 0.000
H8 0.549 -1.628 0.000
H9 2.062 -1.331 0.879
H10 2.062 -1.331 -0.879

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.17531.43312.14942.43913.40272.99322.58283.74933.7493
N21.17532.60833.24833.51494.53163.74283.02574.46204.4620
C31.43312.60831.08591.34632.08222.52962.69033.23833.2383
H42.14943.24831.08592.11932.40053.50893.77114.13824.1382
C52.43913.51491.34632.11931.08881.49492.15522.13742.1374
H63.40274.53162.08222.40051.08882.21443.11132.56672.5667
C72.99323.74282.52963.50891.49492.21441.09131.09421.0942
H82.58283.02572.69033.77112.15523.11131.09131.77481.7748
H93.74934.46203.23834.13822.13742.56671.09421.77481.7581
H103.74934.46203.23834.13822.13742.56671.09421.77481.7581

picture of (Z)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.463 C1 C3 C5 122.674
N2 C1 C3 178.876 C3 C5 H6 117.151
C3 C5 C7 125.744 H4 C3 C5 120.863
C5 C7 H8 111.940 C5 C7 H9 110.322
C5 C7 H10 110.322 H6 C5 C7 117.105
H8 C7 H9 108.600 H8 C7 H10 108.600
H9 C7 H10 106.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability