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All results from a given calculation for H2OHCOOH (Water formic acid dimer 2)

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-266.307792
Energy at 298.15K-266.311663
HF Energy-266.307792
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.984567
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 B3LYP/TZVP
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 3878 3743 84.65      
2 A 3714 3586 25.24      
3 A 3705 3577 226.18      
4 A 3090 2983 14.85      
5 A 1792 1730 379.43      
6 A 1621 1565 101.16      
7 A 1415 1366 4.99      
8 A 1312 1267 16.37      
9 A 1141 1102 264.80      
10 A 1069 1032 2.73      
11 A 695 671 172.00      
12 A 640 618 49.29      
13 A 498 481 168.79      
14 A 342 330 159.15      
15 A 169 163 8.59      
16 A 82 79 124.64      
17 A 69 67 0.17      
18 A 53 51 42.08      

Unscaled Zero Point Vibrational Energy (zpe) 12642.9 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 12205.5 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 B3LYP/TZVP
ABC
0.89374 0.08993 0.08183

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.777 0.400 -0.034
O2 -2.438 -0.309 -0.052
O3 0.176 0.882 -0.003
H4 -3.238 0.069 0.326
C5 0.706 -0.199 0.022
O6 2.030 -0.397 -0.001
H7 0.170 -1.153 0.065
H8 2.467 0.470 -0.042

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.96922.01251.54002.55553.88972.49264.2445
O20.96922.87360.96163.14744.46922.74414.9664
O32.01252.87363.52481.20492.25232.03642.3274
H41.54000.96163.52483.96485.29813.62965.7301
C52.55553.14741.20493.96481.33831.09471.8844
O63.88974.46922.25235.29811.33832.00840.9721
H72.49262.74412.03643.62961.09472.00842.8142
H84.24454.96642.32745.73011.88440.97212.8142

picture of Water formic acid dimer 2 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 105.803 H1 O3 C5 102.245
O2 H1 O3 146.886 O3 C5 O6 124.565
O3 C5 H7 124.558 C5 O6 H8 108.251
O6 C5 H7 110.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.279      
2 O -0.555      
3 O -0.366      
4 H 0.262      
5 C 0.239      
6 O -0.276      
7 H 0.130      
8 H 0.287      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.420 0.936 0.720 1.847
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.399 -0.570 -2.717
y -0.570 -25.621 -0.038
z -2.717 -0.038 -24.326
Traceless
 xyz
x 6.575 -0.570 -2.717
y -0.570 -4.259 -0.038
z -2.717 -0.038 -2.316
Polar
3z2-r2-4.632
x2-y27.222
xy-0.570
xz-2.717
yz-0.038


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.214 -0.282 -0.133
y -0.282 4.043 -0.006
z -0.133 -0.006 2.503


<r2> (average value of r2) Å2
<r2> 128.092
(<r2>)1/2 11.318