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All results from a given calculation for C6H5COOH (benzoic acid)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-418.334478
Energy at 298.15K-418.341791
Nuclear repulsion energy405.328949
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 B1B95/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3552 3398 43.70      
2 A' 3265 3124 1.07      
3 A' 3247 3106 8.67      
4 A' 3235 3095 4.79      
5 A' 3226 3086 8.25      
6 A' 3214 3075 0.61      
7 A' 1786 1709 200.85      
8 A' 1659 1587 12.52      
9 A' 1637 1566 6.41      
10 A' 1552 1485 2.72      
11 A' 1512 1446 18.00      
12 A' 1416 1355 109.07      
13 A' 1388 1328 15.41      
14 A' 1358 1299 3.36      
15 A' 1246 1192 0.92      
16 A' 1230 1177 2.15      
17 A' 1206 1154 119.93      
18 A' 1133 1084 8.87      
19 A' 1091 1044 185.57      
20 A' 1067 1021 54.14      
21 A' 1042 997 2.91      
22 A' 784 750 4.40      
23 A' 653 624 0.21      
24 A' 634 607 52.67      
25 A' 504 483 6.19      
26 A' 396 379 8.85      
27 A' 231 221 1.77      
28 A" 1057 1011 0.23      
29 A" 1033 988 0.04      
30 A" 991 948 3.07      
31 A" 892 853 0.05      
32 A" 846 809 0.39      
33 A" 739 707 174.71      
34 A" 735 704 0.10      
35 A" 602 576 99.91      
36 A" 439 420 14.24      
37 A" 429 411 2.75      
38 A" 166 158 2.04      
39 A" 99 95 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 25645.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 24534.6 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 B1B95/3-21G
ABC
0.12819 0.04143 0.03131

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.217 0.000
C2 1.266 -0.365 0.000
C3 1.389 -1.747 0.000
C4 0.243 -2.542 0.000
C5 -1.022 -1.956 0.000
C6 -1.149 -0.572 0.000
C7 -0.057 1.688 0.000
O8 0.912 2.439 0.000
O9 -1.350 2.151 0.000
H10 2.127 0.291 0.000
H11 2.369 -2.205 0.000
H12 0.337 -3.621 0.000
H13 -1.906 -2.581 0.000
H14 -2.117 -0.091 0.000
H15 -1.325 3.143 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.39332.40552.77052.40181.39341.47122.40152.35822.12863.38853.85343.38582.13913.2113
C21.39331.38752.40592.78702.42322.44162.82613.62921.08252.14593.38643.86953.39374.3605
C32.40551.38751.39482.42002.79623.72614.21304.76372.16731.08232.14953.39893.87695.5920
C42.77052.40591.39481.39472.41274.24065.02624.95643.40252.15241.08292.14983.40285.8974
C52.40182.78702.42001.39471.39013.76924.80174.12003.86883.40042.14951.08252.16255.1077
C61.39342.42322.79622.41271.39012.50913.64812.73003.38753.87843.39212.14731.08103.7185
C71.47122.44163.72614.24063.76922.50911.22591.37372.59264.58685.32344.65172.72141.9301
O82.40152.82614.21305.02624.80173.64811.22592.27992.46844.86776.08765.75673.94622.3446
O92.35823.62924.76374.95644.12002.73001.37372.27993.94365.72796.01374.76432.36940.9920
H102.12861.08252.16733.40253.86883.38752.59262.46843.94362.50774.30234.95134.26124.4778
H113.38852.14591.08232.15243.40043.87844.58684.86775.72792.50772.47694.29184.95916.4997
H123.85343.38642.14951.08292.14953.39215.32346.08766.01374.30232.47692.47274.29926.9651
H133.38583.86953.39892.14981.08252.14734.65175.75674.76434.95134.29182.47272.49875.7529
H142.13913.39373.87693.40282.16251.08102.72143.94622.36944.26124.95914.29922.49873.3292
H153.21134.36055.59205.89745.10773.71851.93012.34460.99204.47786.49976.96515.75293.3292

picture of benzoic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.779 C1 C2 H10 118.036
C1 C6 C5 119.276 C1 C6 H14 119.109
C1 C7 O8 125.597 C1 C7 O9 111.933
C2 C1 C6 120.813 C2 C1 C7 116.912
C2 C3 C4 119.701 C2 C3 H11 120.149
C3 C2 H10 122.185 C3 C4 C5 120.352
C3 C4 H12 119.821 C4 C3 H11 120.150
C4 C5 C6 120.078 C4 C5 H13 119.886
C5 C4 H12 119.827 C5 C6 H14 121.615
C6 C1 C7 122.274 C6 C5 H13 120.036
C7 O9 H15 108.265 O8 C7 O9 122.470
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.139      
2 C -0.174      
3 C -0.211      
4 C -0.200      
5 C -0.209      
6 C -0.187      
7 C 0.670      
8 O -0.495      
9 O -0.579      
10 H 0.242      
11 H 0.220      
12 H 0.220      
13 H 0.219      
14 H 0.241      
15 H 0.382      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.172 -1.132 0.000 1.630
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.902 -6.006 0.000
y -6.006 -42.798 0.000
z 0.000 0.000 -54.470
Traceless
 xyz
x 0.732 -6.006 0.000
y -6.006 8.388 0.000
z 0.000 0.000 -9.120
Polar
3z2-r2-18.240
x2-y2-5.104
xy-6.006
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.713 -0.260 0.000
y -0.260 14.676 0.000
z 0.000 0.000 2.920


<r2> (average value of r2) Å2
<r2> 326.705
(<r2>)1/2 18.075