CHEM01200604005 A. K. Pathak - Homi Bhabha National Institute

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CHAPTER 2 Structure and Energetics of Water Embedded Anionic Clusters 2.1. Introduction 18-20 2.2. Theoretical Approach 20-22 2.3. Results and Discussion 2.3.1.1. Structure of X.nH 2 O (X= Cl •− 2 , Br •− 2 & I •− 2 ) Clusters 22-33 2.3.1.2. Structure of X.nH 2 O (X= NO − 3 and CO •− 3 ) Clusters 33-47 2.3.1.3. Structure of CO 2 3 ⎯.nH 2 O Clusters 47-49 2.3.2. Solvent Stabilization and Interaction Energy 49-52 2.3.3. Vertical Detachment Energy 52-55 2.4. Conclusions 55-56 CHAPTER 3 IR Spectra of Water Embedded Anionic Clusters 3.1. Introduction 57-58 3.2. Theoretical Approach 58-60 3.3. Results and Discussion 60-68 3.4. Conclusions 68-68 viii
CHAPTER 4 Solubility of Halogen Gases in Water 4.1. Introduction 69-70 4.2. Theoretical Approach 70-71 4.3. Results and Discussion 4.3.1. Structure 71-76 4.3.2. Atomic Charge and Bond Order 76-78 4.3.3. Solvent Stabilization and Interaction Energy 78-82 4.4. Conclusions 82-83 CHAPTER 5 UV-Vis Spectra of Anionic Hydrated Clusters: Extrapolation to Bulk 5.1. Introduction 84-85 5.2. Theoretical Approach 85-86 5.3. Results and Discussion 5.3.1. Structure 86-89 5.3.2. UV-Vis Spectra 89-93 5.4. Conclusions 93-93 ix
Page 1 and 2: MICROSOLVATION OF CHARGED AND NEUTR
Page 3 and 4: STATEMENT BY AUTHOR This dissertati
Page 5 and 6: Dedicated to my Daughter, Wife and
Page 7: CONTENTS Page No. SYNOPSIS LIST OF
Page 11 and 12: 7.3.4. IR and Raman Spectra 117-121
Page 13 and 14: S Macroscopic Microscopic Dual leve
Page 15 and 16: molecular level interaction during
Page 17 and 18: Chapter 3: This chapter describes I
Page 19 and 20: In this system the conformers of a
Page 21 and 22: LIST OF FIGURES Page No. Fig. 1.1 2
Page 23 and 24: Fig. 2.6 54 (I) Plot of calculated
Page 25 and 26: (IIIA) Cl 2 .3H 2 O; (IIIB) Br 2 .3
Page 27 and 28: Fig. 6.3 104-105 Calculated scaled
Page 29 and 30: LIST OF TABLES Page No. Table. 2.1
Page 31 and 32: CHAPTER 1 Introduction 1.1. Microso
Page 33 and 34: 1.2. Motivation 1.2.1. Macrosolvati
Page 35 and 36: ulk water and pure neutral water cl
Page 37 and 38: insight about the electronic struct
Page 39 and 40: Newton -Raphson (NR) method expand
Page 41 and 42: potential energy surface for these
Page 43 and 44: terms, the energy can be written in
Page 45 and 46: Boyd proposed the use of Gaussian t
Page 47 and 48: eported experimental findings. Theo
Page 49 and 50: hydrated halide series, X¯.nH 2 O,
Page 51 and 52: anions (Cl •− 2 , Br •− 2 &
Page 53 and 54: geometrical parameters close to MP2
Page 55 and 56: symmetrical DHB, SHB or WHB arrange
Page 57 and 58: of I-I axis and having the least I-
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Br •− 2 .nH 2 O hydrated cluste
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VI-F VI-G VII-A VII-B VII-C VII-D V
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To see the effect of hydration on t
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Five minimum energy structures disp
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arrangements. In total, it has one
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NO 3 − .nH2 O (n ≥ 6), a few eq
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V-E V-F V-G V-H V-I VI-A VI-B VI-C
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VII-D VII-E VII-F VII-G VII-H VII-I
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VIII-K VIII-L Fig.2.2. Fully optimi
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clusters. Hydrated cluster having c
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However, these calculations do not
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Table 2.1. Weighted average energy
Page 83 and 84:
Where, E[I •− 2 .nH 2 O] is the
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The variation of the weighted avera
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CHAPTER 3 IR Spectra of Water Embed
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ecome more meaningful. At present,
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I-A II-A II-B III-A III-B III-C III
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Cluster experiments are carried out
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3350-3500 cm -1 (scaling factor ~0.
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these systems, X. nH 2 O (X= Br 2
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CHAPTER 4 Solubility of Halogen Gas
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including polarized and diffuse fun
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and I 2 systems. The most stable st
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Cl Cl Br Br I I VA VB VC Cl Cl Br B
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(Br δ+ -Br δ- ) in the studied hy
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stabilization energy does not follo
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80 Cl 2 .nH 2 O (n=1-8) 80 Br 2 .nH
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separated ion pair in presence of s
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adical ( • OH) reacts with HCO 3
Page 117 and 118:
most stable conformer for each size
Page 119 and 120:
The structures of the hydrated clus
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Table 5.1. Calculated absorption ma
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molar extinction coefficient value
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ammonia. 61-62 Hydrogen bonded wate
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stable minimum energy structure is
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IV-A IV-B V-A V-B V-C VI-A VI-B VI-
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6.3.3. Vertical Ionization Potentia
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311++G(2d,2p) level, the scaling fa
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K(NH 3 ) 4 K(NH 3 ) 5 IR Intensity
Page 137 and 138:
CHAPTER 7 Structure, Energetics and
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Thus Monte Carlo based simulated an
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I I I I I I I I A B C D I I I I I I
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interaction as well as solvent-solv
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Table 7.1. Various energy parameter
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change in VDE is observed. This is
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symmetric C-O stretching mode of CO
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to the maximum charge transfer of t
Page 153 and 154:
CHAPTER 8 A Generalized Microscopic
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possible breakdown of these laws ma
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P 7 P , , P , ,, 1 ∂ 2
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M DE = (r, ω)C DE , (r,
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known. However, for most of the com
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The calculated bulk detachment ener
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espect to experimentally measured v
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References 1. Ohtaki, H.; Radani, T
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29. Turi, L.; Sheu, W.; Rossky,P.J.
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61. (a) Ehrler, O. T.; Neumark, D.
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LIST OF PUBLICATIONS *1. “σ/σ
Page 175 and 176:
13. “Vibrational analysis of I
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CHEM01200604005 A. K. Pathak - Homi Bhabha National Institute

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