Isolation of the novel example of a monomeric organotellurinic acid

Rajesh Deka; Arup Sarkar; Ray J. Butcher; Peter C. Junk; David R. Turner; Glen B. Deacon; Harkesh B. Singh

doi:10.1039/c9dt04013g

Isolation of the novel example of a monomeric organotellurinic acid

Rajesh Deka, Arup Sarkar, Ray J. Butcher, Peter C. Junk, David R. Turner, Glen B. Deacon, Harkesh B. Singh

School of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

11 Citations (Scopus)

Abstract

The stoichiometrically controlled alkaline hydrolysis of 4, (ppy)TeCl₃, [ppy = 2-(2′-pyridyl)phenyl] afforded the partially hydrolyzed μ-oxo-bridged dinuclear telluroxane 5, [(ppyTeCl₂)₂(μ-O)] and a novel example of an Intramolecular Chalcogen Bonding (IChB) stabilized, monomeric organotellurinic acid 6, (ppy)Te(O)OH. The oxidation of diaryl ditelluride 7, (ppyTe)₂ using H₂O₂ resulted in the isolation of μ-oxo-bridged dimethyl ester 8, [(ppy)Te(O)(OH)(OMe)]₂(O). The molecular structures of 4-6 and 8 are unambiguously authenticated by single crystal X-ray diffraction studies. The electronic structure of monomeric tellurinic acid 6 is investigated using DFT calculations. The Natural Bond Order (NBO) analysis, in corroboration with Atoms in Molecules (AIM) analysis reveals that tellurinic acid 6 is stabilized by σ-hole participation of the tellurium atom with the pyridyl N-atom resulting in strong electrostatic interactions between the N and Te atoms.

Original language	English
Pages (from-to)	1173-1180
Number of pages	8
Journal	Dalton Transactions
Volume	49
Issue number	4
DOIs	https://doi.org/10.1039/c9dt04013g
Publication status	Published - 28 Jan 2020

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title = "Isolation of the novel example of a monomeric organotellurinic acid",

abstract = "The stoichiometrically controlled alkaline hydrolysis of 4, (ppy)TeCl3, [ppy = 2-(2′-pyridyl)phenyl] afforded the partially hydrolyzed μ-oxo-bridged dinuclear telluroxane 5, [(ppyTeCl2)2(μ-O)] and a novel example of an Intramolecular Chalcogen Bonding (IChB) stabilized, monomeric organotellurinic acid 6, (ppy)Te(O)OH. The oxidation of diaryl ditelluride 7, (ppyTe)2 using H2O2 resulted in the isolation of μ-oxo-bridged dimethyl ester 8, [(ppy)Te(O)(OH)(OMe)]2(O). The molecular structures of 4-6 and 8 are unambiguously authenticated by single crystal X-ray diffraction studies. The electronic structure of monomeric tellurinic acid 6 is investigated using DFT calculations. The Natural Bond Order (NBO) analysis, in corroboration with Atoms in Molecules (AIM) analysis reveals that tellurinic acid 6 is stabilized by σ-hole participation of the tellurium atom with the pyridyl N-atom resulting in strong electrostatic interactions between the N and Te atoms.",

author = "Rajesh Deka and Arup Sarkar and Butcher, \{Ray J.\} and Junk, \{Peter C.\} and Turner, \{David R.\} and Deacon, \{Glen B.\} and Singh, \{Harkesh B.\}",

year = "2020",

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doi = "10.1039/c9dt04013g",

language = "English",

volume = "49",

pages = "1173--1180",

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T1 - Isolation of the novel example of a monomeric organotellurinic acid

AU - Deka, Rajesh

AU - Sarkar, Arup

AU - Butcher, Ray J.

AU - Junk, Peter C.

AU - Turner, David R.

AU - Deacon, Glen B.

AU - Singh, Harkesh B.

PY - 2020/1/28

Y1 - 2020/1/28

N2 - The stoichiometrically controlled alkaline hydrolysis of 4, (ppy)TeCl3, [ppy = 2-(2′-pyridyl)phenyl] afforded the partially hydrolyzed μ-oxo-bridged dinuclear telluroxane 5, [(ppyTeCl2)2(μ-O)] and a novel example of an Intramolecular Chalcogen Bonding (IChB) stabilized, monomeric organotellurinic acid 6, (ppy)Te(O)OH. The oxidation of diaryl ditelluride 7, (ppyTe)2 using H2O2 resulted in the isolation of μ-oxo-bridged dimethyl ester 8, [(ppy)Te(O)(OH)(OMe)]2(O). The molecular structures of 4-6 and 8 are unambiguously authenticated by single crystal X-ray diffraction studies. The electronic structure of monomeric tellurinic acid 6 is investigated using DFT calculations. The Natural Bond Order (NBO) analysis, in corroboration with Atoms in Molecules (AIM) analysis reveals that tellurinic acid 6 is stabilized by σ-hole participation of the tellurium atom with the pyridyl N-atom resulting in strong electrostatic interactions between the N and Te atoms.

AB - The stoichiometrically controlled alkaline hydrolysis of 4, (ppy)TeCl3, [ppy = 2-(2′-pyridyl)phenyl] afforded the partially hydrolyzed μ-oxo-bridged dinuclear telluroxane 5, [(ppyTeCl2)2(μ-O)] and a novel example of an Intramolecular Chalcogen Bonding (IChB) stabilized, monomeric organotellurinic acid 6, (ppy)Te(O)OH. The oxidation of diaryl ditelluride 7, (ppyTe)2 using H2O2 resulted in the isolation of μ-oxo-bridged dimethyl ester 8, [(ppy)Te(O)(OH)(OMe)]2(O). The molecular structures of 4-6 and 8 are unambiguously authenticated by single crystal X-ray diffraction studies. The electronic structure of monomeric tellurinic acid 6 is investigated using DFT calculations. The Natural Bond Order (NBO) analysis, in corroboration with Atoms in Molecules (AIM) analysis reveals that tellurinic acid 6 is stabilized by σ-hole participation of the tellurium atom with the pyridyl N-atom resulting in strong electrostatic interactions between the N and Te atoms.

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U2 - 10.1039/c9dt04013g

DO - 10.1039/c9dt04013g

M3 - Article

C2 - 31895377

AN - SCOPUS:85078340760

SN - 1477-9226

VL - 49

SP - 1173

EP - 1180

JO - Dalton Transactions

JF - Dalton Transactions

IS - 4

ER -

Isolation of the novel example of a monomeric organotellurinic acid

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