Revisiting the Mechanism of Neutral Hydrolysis of Esters: Water

May 3, 2013 - The mechanism of neutral hydrolysis of ester has long been explored by theoretical studies. However, reliable theoretical calculations s...
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Supporting Information

Revisiting the Mechanism of Neutral Hydrolysis of Esters: Water Autoionization Mechanisms with Acid or Base Initiation Pathways

Poliana Lima da Silva, Luciana Guimarães and Josefredo R. Pliego Jr.

Departamento de Ciências Naturais, Universidade Federal de São João del-Rei 36301-160, São João del-Rei, MG, Brazil.

Geometries of minima and transitions states were obtained at CPCM/X3LYP/631(+)G(d) level.

TS1a Total Energy: -344.626714 a.u. Atom

x

y

z

O

-0.2647633366

0.4779692757

-1.1800387364

C

-0.2559650564

-0.2551777947

-0.0768733039

O

0.8837686969

-0.6694534357

0.4151313899

C

-1.4316913635

-1.0980815398

0.3033516683

C

2.1100314516

-0.0015598573

0.0048439818

H

-1.3921503045

-1.3822707953

1.3558219802

H

-1.3968809820

-2.0097386244

-0.3071640635

H

-2.3612196402

-0.5745362970

0.0803242528

H

2.8967634006

-0.5048970953

0.5626025061

S1

H

2.0491208764

1.0519784190

0.2775813140

H

2.2533362795

-0.1187238520

-1.0683130101

O

-0.6773069592

1.5333350714

0.7943486825

H

-0.6037296423

1.3553226956

-0.6087880658

H

-1.5781001535

1.5686595101

1.1591109234

TS1b Total Energy: -421.057504 a.u. Atom

x

y

z

O

-0.2647633366

0.4779692757

-1.1800387364

C

-0.2559650564

-0.2551777947

-0.0768733039

O

0.8837686969

-0.6694534357

0.4151313899

C

-1.4316913635

-1.0980815398

0.3033516683

C

2.1100314516

-0.0015598573

0.0048439818

H

-1.3921503045

-1.3822707953

1.3558219802

H

-1.3968809820

-2.0097386244

-0.3071640635

H

-2.3612196402

-0.5745362970

0.0803242528

H

2.8967634006

-0.5048970953

0.5626025061

H

2.0491208764

1.0519784190

0.2775813140

H

2.2533362795

-0.1187238520

-1.0683130101

O

-0.6773069592

1.5333350714

0.7943486825

H

-0.6037296423

1.3553226956

-0.6087880658

H

-1.5781001535

1.5686595101

1.1591109234

TS1c Total Energy: -497.471510 a.u. Atom

x

y

z S2

C

1.7261330605

-1.3031168281

-1.6655290896

C

0.4604842200

-0.6310090015

-1.2408259660

O

0.3013164463

0.6050774738

-1.5857322662

O

-0.5524035527

-1.4604386472

-1.0741118803

C

-1.8880965229

-0.9521702190

-0.8441813201

H

1.8576002729

-2.2476374280

-1.1375099502

H

2.5765304982

-0.6465481568

-1.4890455808

H

1.6507334822

-1.5094326872

-2.7400868873

H

-2.5243946106

-1.8342060975

-0.8262349372

H

-2.1834142643

-0.2851998227

-1.6557617780

H

-1.9216654203

-0.4377153133

0.1169601585

H

-0.4440301897

1.2037696831

-1.1061210988

O

0.9737273478

-0.3380695514

0.7440543536

H

0.8602137026

-1.1945541076

1.1893999275

O

-1.2568079218

2.1231615092

-0.3665002398

H

-0.9835795535

3.0338491406

-0.5705152638

H

-0.9426554674

1.9149250663

0.6167718866

O

-0.4370801202

1.3049792012

1.8729082729

H

0.1398098655

1.9356954480

2.3331521031

H

0.3172547274

0.4309073381

1.3223555558

TS1d Total Energy: -573.888328 a.u. Atom

x

y

z

C

0.5570963378

-2.5157334914

-1.2315982176

C

-0.6146197286

-1.8941293218

-0.5541760215

O

-1.5713802540

-1.4441147431

-1.2638668328

O

-0.7025071111

-2.1408393563

0.7246234285

C

-1.8524979780

-1.7060339971

1.4935003651 S3

H

1.3845821170

-2.6387846006

-0.5333684208

H

0.8590043411

-1.9061551207

-2.0814374461

H

0.2503039336

-3.5047428543

-1.5945557520

H

-2.3204852988

-0.7227322080

-0.8802914328

H

-1.7219823481

-2.1617392731

2.4721578401

H

-2.7720774278

-2.0599709251

1.0255945535

H

-1.8381343527

-0.6188814047

1.5711872115

O

0.3816393466

0.2688975330

-0.2505963950

H

0.9532856325

0.1873554882

0.5296296291

O

-3.1681757423

0.2758035642

-0.5666283846

H

-3.6645213635

0.5679482830

-1.3512970236

H

-2.5449964219

1.0526664785

-0.2915502761

O

1.9232222236

1.2261522855

-2.1911440296

H

1.3989949856

1.9187395088

-2.6231487808

H

1.3255781254

0.8416462472

-1.4683819168

O

-1.3870235091

1.9421516897

0.2216449582

H

-1.2540586077

2.7190584637

-0.3454402472

H

-0.5561975468

1.2532437899

0.0280251862

MS1 Total Energy: -620.818583 a.u. Atom

x

y

z

C

1.5896529415

0.9107668697

0.2962273730

C

0.4136705442

-0.0155327682

0.0471687865

O

0.4617165079

-1.0731992482

0.9679082266

O

0.4599272966

-0.6326158341

-1.2322647441

O

-0.7577693475

0.7598513015

0.1739573030

C

-2.0055688468

0.0508719457

0.1245239506

H

1.5531775733

1.7556051592

-0.3966595058 S4

H

2.5211270516

0.3615168710

0.1457345071

H

1.5562040967

1.2927815241

1.3194330901

H

-0.0046925325

-1.8422999734

0.5958407424

H

0.3156733331

0.0437424303

-1.9167618597

H

-2.7820927379

0.8160646321

0.1354307792

H

-2.1223509110

-0.5938839020

1.0008949255

H

-2.0911836503

-0.5399189197

-0.7923677422

S5