All about ag7 clusters (anion)

Cluster ag7 .Scan C-O anion : Potential Energy Scan (C-O)

/home/kdhar/emim_co2_silver/hco2_test/pes_ag7/co/pes_ag7_distance_scan_co_anion12



Fig 1: Minimum Energy(ag7_hco2_4h2o_co_scan_anion) structures )when distances between carbon and oxygen .(C-O distance is 1.40 Å).

Z-Matrix orientation : (Minimum energy structure)

23

scf done: -1524.335319

C 0.336289 3.523601 -0.848761

Ag -0.090483 1.373661 -0.792603

Ag -0.645961 -1.686946 -0.042716

Ag 1.892754 -0.708540 -0.913421

Ag 0.859194 -0.057687 1.665191

O 1.994662 1.669848 3.071611

O -0.387425 4.412021 -1.425339

Ag -0.268012 -0.721606 -2.743729

Ag -2.594339 -0.094022 -1.356682

Ag -1.894780 0.551731 1.306677

O 1.383484 4.079786 -0.093132

O 3.115461 2.330518 0.780638

O -2.232600 3.188758 -2.965904

H 2.039166 3.368960 0.254551

H 3.029850 1.559671 0.173828

H 2.813493 2.041418 1.700251

H -1.562516 3.673383 -2.394249

H -2.189773 2.234450 -2.730638

H 1.251876 2.358974 3.072907

H 2.326685 1.472278 3.969076

O 0.069751 3.407305 2.632860

H 0.430275 3.881207 1.847025

H -0.646032 2.805606 2.318010


Fig 2: Middle Energy(ag7_hco2_4h2o_co_scan_anion) structures )when distances between carbon and oxygen .(C-O distance is 2.0 Å).dissociation of OH anion with relative energy 14.75kcal/mol .

Z-Matrix orientation : (middle energy structure)

23

scf done: -1524.311799

C 0.030543 3.600572 -0.812867

Ag -0.257904 1.442379 -0.687684

Ag -0.725413 -1.572824 -0.032010

Ag 1.737120 -0.550836 -1.066832

Ag 0.922070 0.008353 1.608713

O 2.067389 1.631293 3.042617

O -0.486797 4.583668 -1.273089

Ag -0.554267 -0.530785 -2.742971

Ag -2.769326 0.074672 -1.170523

Ag -1.888859 0.572555 1.479306

O 1.267313 4.254058 0.616593

O 3.437709 2.151814 0.791331

O -2.093497 2.735276 -3.550930

H 2.019719 3.615351 0.518519

H 3.022054 1.555826 0.127153

H 3.021171 1.942843 1.681632

H -1.784832 3.480291 -2.992508

H -1.890456 1.897618 -3.065177

H 1.323766 2.353888 3.042397

H 2.336241 1.362937 3.942907

O 0.234310 3.388347 2.719350

H 0.630208 3.808015 1.800907

H -0.567243 2.859067 2.508618


Fig 3: last optimized structure Energy(ag7_hco2_4h2o_co_scan_anion) structure )when distances between carbon and oxygen .(C-O distance is 2.2 Å).dissociation of h2o mol with relative energy 10.75kcal/mol .

Z-Matrix orientation : (last energy structure )

23

scf done: -1524.319162

C -0.032228 3.635852 -0.883086

Ag -0.303971 1.469460 -0.702407

Ag -0.766834 -1.439648 0.035021

Ag 1.711344 -0.560753 -1.003140

Ag 0.879589 0.099505 1.673048

O 2.153136 1.530011 2.934577

O -0.751611 4.594176 -0.918954

Ag -0.563138 -0.567513 -2.722574

Ag -2.813893 0.094325 -1.207849

Ag -1.945930 0.671534 1.475453

O 1.379752 4.207306 0.704288

O 3.310515 2.283389 0.801276

O -2.085469 2.598624 -3.730482

H 2.132292 3.547401 0.609750

H 3.064696 1.627177 0.111814

H 2.925948 1.949640 1.714894

H -1.699346 3.407917 -3.334718

H -1.875029 1.840171 -3.130604

H 1.060043 2.531903 3.072729

H 2.589775 1.133915 3.715006

O 0.295164 3.247941 3.007887

H 0.891410 3.966033 1.552238

H -0.525197 2.796010 2.711284

Cluster ag7 .Scan O-H ANION

Potential Energy Scan (H-O) (HCO2(H) -(H2O)(O) )



Fig : first optimized structure (ag7_hco2_4h2o_OH_scan_anion) structure )when distances between Hydrogen and oxygen .(H-O distance is 1.58 Å).

Z-Matrix orientation : (mini structure )

23

scf done: -1524.335317

C 0.342647 3.521319 -0.853374

Ag -0.091654 1.372948 -0.792914

Ag -0.657579 -1.683933 -0.035158

Ag 1.885271 -0.717346 -0.907632

Ag 0.853392 -0.055256 1.668198

O 1.993340 1.670524 3.072951

O -0.378340 4.411013 -1.431766

Ag -0.274333 -0.726999 -2.738933

Ag -2.599964 -0.089817 -1.355187

Ag -1.899170 0.561576 1.306935

O 1.392239 4.075632 -0.099910

O 3.116446 2.322484 0.780511

O -2.231815 3.191904 -2.965790

H 2.045096 3.363316 0.249937

H 3.027846 1.550281 0.175825

H 2.812612 2.037002 1.700728

H -1.558931 3.674422 -2.395682

H -2.193266 2.237832 -2.728880

H 1.252979 2.362248 3.073666

H 2.327458 1.475015 3.970078

O 0.073894 3.413283 2.630803

H 0.436284 3.884084 1.843994

H -0.643436 2.812844 2.317052

/home/kdhar/emim_co2_silver/hco2_test/pes_ag7/oh/pes_ag7_distance_scan_oh_anion_12

last_z_matrix_orientation

23

scf done: -1524.335071

C 0.354004 3.517073 -0.846774

Ag -0.090893 1.370683 -0.792333

Ag -0.659478 -1.688849 -0.036404

Ag 1.887240 -0.720556 -0.899814

Ag 0.845480 -0.065350 1.674065

O 1.993688 1.675261 3.062613

O -0.365241 4.408866 -1.428461

Ag -0.267431 -0.731565 -2.736544

Ag -2.597277 -0.093503 -1.359175

Ag -1.904038 0.559605 1.304229

O 1.403150 4.061253 -0.093519

O 3.070936 2.345440 0.767215

O -2.225730 3.199537 -2.951838

H 2.065712 3.337090 0.261096

H 3.023521 1.566321 0.166958

H 2.788452 2.050633 1.693484

H -1.547262 3.678924 -2.384118

H -2.191451 2.245333 -2.714967

H 1.248933 2.362545 3.069306

H 2.345576 1.490534 3.955202

O 0.069792 3.411635 2.624780

H 0.433786 3.872360 1.832385

H -0.650452 2.811104 2.318065


Fig:2 last and or final optimized structure (O-H anion )optimized structure ag7_hco2_4h2o_OH_scan_anion) structure )when distances between Hydrogen and oxygen .(H-O distance is 1.5 Å). with relative energy 10kcal/mol

With BF4 anion ag7 cluster : anion .

Ag7_bf4_hco2_h2o_anion

Location : study on bf4 anion (scanning O-H )

/home/kdhar/emim_co2_silver/hco2_test/pes_ag7/bf4/bf4_h2o/pes_ag7_distance_scan_oh_anion_11/mini_energy_stru_anion_38359

h2o_hco2_bf4_3h2o_anion11.log : scf done = -1948.90883862 Hartree (optimized structure)

Z-Matrix orientation:

28

scf done: -1948.908839

C 0.864972 3.319889 -1.224954

Ag 2.127853 3.783177 0.435734

Ag 3.735463 4.746829 2.500079

Ag 1.422195 3.361961 3.190828

Ag 1.299427 6.072750 2.043648

Ag 3.497038 6.389621 0.239160

Ag 4.974817 3.834692 0.173149

Ag 3.773004 1.986747 2.078006

O 4.422815 -0.212044 2.669917

O 0.661386 1.974995 -1.617136

O 0.225679 4.134986 -1.963278

O -2.120729 1.335945 -1.476892

O -2.262303 -0.929369 -0.052649

F 1.835436 -0.034196 -0.173944

B 1.298938 -0.883835 0.871946

F 0.370575 -1.817616 0.283027

F 0.637173 -0.098742 1.861460

F 2.388775 -1.622381 1.465477

O 0.362885 6.768631 -1.366004

H 1.146294 1.337087 -1.034162

H -1.168192 1.561752 -1.594810

H -1.355065 -1.292254 0.069723

H 0.320449 5.792110 -1.590371

H 0.949965 6.869992 -0.582477

H -2.715656 -0.881370 0.811955

H 4.461376 -0.311826 3.642758

H 3.726577 -0.806923 2.299913

H -2.203006 0.493470 -0.941033

Minimum energy structure :


Fig 1: Minimum Energy(ag7_h2o_hco2_bf4) structures anion(-1,1) when distances between hydrogen(20) and oxygen(10) . O-H distance is 0.99 Å.

Potential energy Scan :


Fig(01):Represented the PES (Potential Energy Scan)(pes_ag7_distance_scan_oh_anion_11). PES was performed on optimized geometries by increasing the O---H group(in co-oh) distance (O--H with increments of 1.0 Angstrom.) .

Noteworthy it is nice to mention that from this figure also showed as distances increases between Oxygen and Hydrogen atom ,the relative energies also increases Linearly . Moreover/furthermore and or meanwhile to form H---F (H-BF4) required amount of relative Energies is 30 to 35 kcal/mol at distance 1.5.

// for all PES to optimization was performed)

Extended supporting information :

Used Model :

Polarizable Continuum Model (PCM)

Model : C-PCM.

Atomic radii : SMD-Coulomb.

Polarization charges : Total charges.

Charge compensation : None.

Solvent : Water, Eps= 78.355300 Eps(inf)= 1.777849

Cmd used :

#p B3LYP/sdd opt(addredundant) scrf(iefpcm,smd) Nosym in g09 software packages .

As we know scanning variable breaks symmetry during the calculation, so NoSymm in the route section of the job used throughout the overall process of our calculation. //

Last optimized structure :

scan of OH to see the formation of HBF4 (sp H...F)


Fig2: optimized structure ag7_h3o_hco2_bf4) structures anion(-1 2)when distances between hydrogen and oxygen . O-H distance is 1.50 . Formation of H---F with more or less 35 kcal/mol . (relative energies )

2.Study on H3O_BF4_ag7_anion

Location :

/home/kdhar/emim_co2_silver/hco2_test/pes_ag7/bf4/h3o_bf4/pes_ag7_distance_scan_oh_anion_12/mini_energy_strut_38537

Log and or out put :

mini_energy_strut_38537 : SCF DONE : SCF Done: E(UB3LYP) = -1949.45067143 Hartree (optimized structure)

Z-matrix orientation :

29

scf done: -1949.450671

C 0.531458 3.437269 -0.704420

O 1.628954 3.795206 0.163468

O -0.042145 4.467938 -1.167934

Ag 0.142468 1.319207 -1.094369

Ag 1.432113 -1.081081 -0.113303

Ag -1.284489 -0.538549 0.518243

Ag -2.587715 0.453578 -1.802923

Ag -0.701546 0.628800 -3.838336

Ag 1.779093 -0.275384 -2.820999

Ag -0.608978 -1.610677 -2.033671

F 3.298731 1.868425 1.156433

B 4.594340 1.509118 0.615035

F 4.549788 1.473650 -0.808702

F 4.977952 0.224925 1.142849

F 5.563043 2.494827 1.048536

O 5.440469 5.065754 0.181080

O 3.147649 5.803680 0.022351

O -2.109541 3.863355 -2.860426

H 2.116849 3.002080 0.501476

H 4.214370 5.494390 0.090790

H 2.454175 5.033864 0.075281

H 5.557500 4.136829 0.497278

H -1.360865 4.106584 -2.243864

H -2.126740 2.879431 -2.932593

H 6.070153 5.291352 -0.529598

O 3.254022 -1.941860 1.218634

H 3.608802 -2.747070 0.789356

H 3.934638 -1.226930 1.196179

H 2.894572 6.612949 0.505332

Potential energy Scan :


Minimum energy structure :

Fig 2: Minimum Energy(ag7_h3o_hco2_bf4) structures anion(-1 2)when distances between hydrogen(19) and oxygen(2) . O-H distance is 0.99 Å.

3. Extended study of H3O // oxygen in (HCO2 anion) and Hydrogen in H3O cation (O---H scan)

Location:

/home/kdhar/emim_co2_silver/hco2_test/pes_ag7/bf4/h3o_bf4/pes_ag7_distance_scan_oh_anion_12/work_task_coo_diss_cc_kk/h3o_hco2_bf4_4h2o_scan105_oh_diss_38917

output optimized struture :

h3o_hco2_bf4_4h2o_scan105_oh_diss.log SCF Done: E(UB3LYP) = -1949.46359168 hatree (optimized geometry)

Z-Matrix Orientation:

29

scf done: -1949.442927

C 0.530477 3.427610 -0.933131

O 1.695159 3.855738 0.381470

O 0.083955 4.466856 -1.362091

Ag 0.211002 1.291518 -1.214492

Ag 1.490890 -1.073028 -0.174402

Ag -1.138732 -0.346797 0.661097

Ag -2.603070 0.550957 -1.605221

Ag -0.911369 0.492312 -3.811882

Ag 1.628143 -0.452275 -2.946705

Ag -0.747279 -1.620667 -1.869065

F 3.377998 1.865059 1.236493

B 4.646538 1.494133 0.637463

F 4.539386 1.458201 -0.785854

F 5.029975 0.195665 1.144944

F 5.643962 2.458862 1.031624

O 5.521087 5.101386 0.189491

O 3.084865 5.906279 0.197632

O -2.189888 3.850294 -3.154032

H 2.241727 3.079075 0.661953

H 4.073574 5.641573 0.213002

H 2.244104 4.747445 0.303889

H 5.605200 4.158698 0.471720

H -1.441059 4.179538 -2.603808

H -2.164395 2.865463 -3.110873

H 6.081108 5.266661 -0.592958

O 3.296666 -1.963380 1.150159

H 3.659361 -2.767837 0.721594

H 3.981198 -1.250762 1.147559

H 2.898538 6.663083 0.78560

Potential energy Scan Diagram :


Minimum energy structure :

Fig 3: Minimum Energy(ag7_h3o_hco2_bf4_extended) structures anion(-1 2)when distances between hydrogen(19) and oxygen(2) . O-H distance is 1.05 Å