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All results from a given calculation for C6H5CN (phenyl cyanide)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-321.394275
Energy at 298.15K-321.399244
Nuclear repulsion energy296.957922
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 QCISD/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3181 3083 6.96      
2 A1 3161 3064 7.07      
3 A1 3148 3051 0.17      
4 A1 2286 2216 0.96      
5 A1 1618 1568 0.00      
6 A1 1537 1490 13.16      
7 A1 1240 1202 0.42      
8 A1 1209 1172 0.05      
9 A1 1054 1022 2.14      
10 A1 1017 986 0.24      
11 A1 772 748 1.47      
12 A1 472 458 0.05      
13 A2 945 916 0.00      
14 A2 844 818 0.00      
15 A2 406 393 0.00      
16 B1 951 922 0.18      
17 B1 902 874 1.82      
18 B1 762 738 53.57      
19 B1 685 664 33.48      
20 B1 593 575 17.60      
21 B1 394 382 0.03      
22 B1 149 145 0.91      
23 B2 3171 3073 14.10      
24 B2 3154 3057 0.22      
25 B2 1588 1539 2.82      
26 B2 1491 1445 6.39      
27 B2 1388 1345 0.23      
28 B2 1257 1219 0.73      
29 B2 1171 1135 3.11      
30 B2 1102 1068 2.20      
31 B2 657 637 0.09      
32 B2 589 571 0.00      
33 B2 182 177 3.30      

Unscaled Zero Point Vibrational Energy (zpe) 21538.1 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 20874.7 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 QCISD/3-21G
ABC
0.18629 0.05055 0.03976

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 3.236
C2 0.000 0.000 2.061
C3 0.000 0.000 0.613
C4 0.000 1.224 -0.091
C5 0.000 -1.224 -0.091
C6 0.000 1.219 -1.496
C7 0.000 -1.219 -1.496
C8 0.000 0.000 -2.200
H9 0.000 2.164 0.460
H10 0.000 -2.164 0.460
H11 0.000 2.164 -2.039
H12 0.000 -2.164 -2.039
H13 0.000 0.000 -3.290

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13
N11.17482.62293.54533.54534.88684.88685.43633.52013.52015.70145.70146.5258
C21.17481.44802.47612.47613.76063.76064.26152.69222.69224.63604.63605.3510
C32.62291.44801.41211.41212.43642.43642.81342.16952.16953.42273.42273.9030
C43.54532.47611.41212.44771.40502.81812.43831.08983.43242.16253.90743.4246
C53.54532.47611.41212.44772.81811.40502.43833.43241.08983.90742.16253.4246
C64.88683.76062.43641.40502.81812.43811.40772.17243.90791.08933.42592.1686
C74.88683.76062.43642.81811.40502.43811.40773.90792.17243.42591.08932.1686
C85.43634.26152.81342.43832.43831.40771.40773.42913.42912.16962.16961.0895
H93.52012.69222.16951.08983.43242.17243.90793.42914.32812.49874.99724.3293
H103.52012.69222.16953.43241.08983.90792.17243.42914.32814.99722.49874.3293
H115.70144.63603.42272.16253.90741.08933.42592.16962.49874.99724.32722.4992
H125.70144.63603.42273.90742.16253.42591.08932.16964.99722.49874.32722.4992
H136.52585.35103.90303.42463.42462.16862.16861.08954.32934.32932.49922.4992

picture of phenyl cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 180.000 C2 C3 C4 119.927
C2 C3 C5 119.927 C3 C4 C6 119.732
C3 C4 H9 119.698 C3 C5 C7 119.732
C3 C5 H10 119.698 C4 C3 C5 120.147
C4 C6 C8 120.199 C4 C6 H11 119.683
C5 C7 C8 120.199 C5 C7 H12 119.683
C6 C4 H9 120.570 C6 C8 C7 119.990
C6 C8 H13 120.005 C7 C5 H10 120.570
C7 C8 H13 120.005 C8 C6 H11 120.118
C8 C7 H12 120.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability