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Coordination Polymer IF any ONE NEed this paper please sen me email

Coordination polymers and metal-organic frameworks (MOFs) are a class of solid-state materials where metal centers are connected through coordination with multifunctional organic compounds and propagate into a higher-dimensional material. The topology of these materials is governed by the coordination preferences of the metal center and those of the organic compound or through the use of a structure-directing agent (a “template.”) The primary focus of this dissertation has been to develop methods of topological manipulation in various MOF systems. Herein, the use of 4,4’-bipyridine and related molecules have been explored throughout a series of lanthanide-aliphatic and calcium-adipate systems. As such, a series of guidelines for template occlusion in MOFs was developed including hardsoft acid-base considerations, hydrophobic/hydrophilic interactions, hydrogen bonding, and template size and flexibility. This template, 4’4-bipyridine was also observed to affect the physical properties of the MOF in that it acts to stimulate lanthanide luminescence through a process known as the antenna effect. Quantum yield and lifetime measurements were recorded in order to quantify the effects that 4,4’-bipyridine has on overall luminescent properties. GWMOF-6:Eu has a quantum yield of 23% with a lifetime of 726μs, and GWMOF-6:Tb with a 32% quantum yield and a lifetime of 1395μs. If both elements are incorporated into GWMOF-6 in a 50/50 ratio, Tb3+ emission is almost completely quenched by transferring its energy to the Eu3+ center, increasing overall quantum yield to 39% (lifetime Eu3+ increased to 768μs and Tb3+ decreased to 523μs.) Other lanthanide combinations were explored with promising preliminary results. Another route to topological control that was developed in this dissertation was to reduce the typically high vi coordination number of the lanthanide to promote the formation of more familiar coordination geometries (e.g., octahedral) and to create more accessibility to the ion. It was observed that organic linkers that could provide a significant degree of steric hindrance thwarted coordination to the lanthanide ion, thus decreasing overall coordination number. These structural systematics and photophysical properties of these various systems are discussed in detail.

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نویسنده : قدرت محمودی : ۱۱:۳٤ ‎ق.ظ ; یکشنبه ۳ آذر ،۱۳۸٧
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Ghodrat Mahmoudi CV

                                     Curriculum Vitae

Personal Data:

 

Name

Surname

Date of Birth

Nationality

Sex

Marital Status

Ghodrat

 

Mahmoudi

1982

Iranian

male

single

Telephone

Fax

E-mail

04113393128

 

ghodratmahmoudi@yahoo.com

gh-mahmoudi@tabrizu.ac.ir

Educational Background: (Last One First)

 

Certificate Degree

Field of Specialization

Name of Institution Attended

Date Received

Ph.D.

Inorganic chemistry

University of Tabriz

……..

M. Sc.

Inorganic chemistry

Tarbiat Modares University

2008

B. Sc.

chemistry

Azarbaijan University of Tarbiat Moallem

2005

                 

Research Interests:

 

I am interested in all aspects of Crystal engineering, supramolecular chemistry and Design and synthesis of novel nanoscale materials with a particular emphasis upon the synthesis of new two- and three-dimensional functional systems with well-defined and programmable properties.

I am extending my interests in the:

·        Use of metal ions to control the conformation and reactivity of coordinated organic fragments

·        Applications of macrocyclic metal complexes are numerous synthetic strategies for the development of new multidentate ligands based on schiff base reaction

·        Non covalent bonding (hydrogen bonding, π - stacking)  and solid-state chemistry

·        Unsymmetrical polynucleating macrocycles and heterocycle-containing ligands

·        Self-assembly of communicating arrays of transition metal ions

·        Hydrothermal synthesis of inorganic network structures hybrid inorganic/organic systems

Publications:

 

Papers 

Title of Paper

Place of Publication

Date of Publication

A new 2D HgII coordination polymer containing novel coordination mode of 2,5-bis(4-pyridyl)-1,3,4-oxadiazole (bpo) ligand, [Hg(μ-bpo)2(N3)2]n: Spectroscopic, thermal, fluorescence and structural studies

Inorganic Chemistry Communications, Volume 10, Issue 2, February 2007, Pages 166-169

2007

Hg(μ-4,4′-bipy)(μ-AcO)(AcO)]n · n/2H2O, one-dimensional double-chain coordination polymer, syntheses, characterization, thermal, fluorescence, porous and structural studies

Inorganica Chimica Acta, Volume 360, Issue 10, 2 July 2007, Pages 3196-3202

2007

Mercury thiocyanate coordination polymers generated from rigid or flexible organic nitrogen donor-based ligands

Polyhedron, Volume 26, Issue 12, 23 July 2007, Pages 2885-2893

2007

A New Two-Dimensional Coordination Polymer of Mercury(II) with very High Thermal Stability

Zeitschrift für anorganische und allgemeine Chemie, 2007, 633, 539-541

2007

Counter-ion influence on the coordination mode of the 2,5-bis(4-pyridyl)-1,3,4-oxadiazole (bpo) ligand in mercury(II) coordination polymers, [Hg(bpo)nX2]: X = I, Br, SCN, N3 and NO2; spectroscopic, thermal, fluorescence and structural studies

CrystEngComm 2007, (11),1062-1072,

2007

Mercury(II) coordination polymers generated from 1,4-bis(2 or 3 or 4-pyridyl)-2,3-diaza-1,3-butadiene ligands

CrystEngComm, 2007, (8),704-714

2007

Zinc(II) nitrite coordination polymers based on rigid and flexible organic nitrogen donor ligands

CrystEngComm, 2007, (8),686-697

2007

New mixed-anion mercury(II) complex, spectroscopic, thermal and structural studies of [Hg(bipy)2(CH3COO)]2(SO4)·0.5NaCl

Journal of Coordination Chemistry, Volume 60, Issue 19, 2007, Pages 2115 – 2120

2007

Syntheses and characterization of three mercury(II) complexes, [Hg(phen)2(SCN)2], [Hg(2,2'-bipy)2(SCN)2] and [Hg(phen)2(NO3)2], thermal and fluorescence studies

Journal of Coordination Chemistry, Volume 61, Issue 5, 2007 Pages 789 – 795

 

 

 

 

2007

Nanoparticles of a new mercury(II) coordination polymer: Syntheses, characterization, thermal and structural studies

Journal of Coordination Chemistry,  Volume61,17,2787-2779

2008

Mercury(II) iodide coordination polymers generated from polyimine ligands

Polyhedron, Volume 27, Issue 3, 26 February 2008, Pages 1070-1078

2008

Mercury(II) bromide/iodide coordination polymers by self-assembly of a long flexible Schiff base ligand

 

Solid State Sciences, Volume 10, Issue 3, March 2008, Pages 283-290

2008

Crystal-to-Crystal Transformation from a Weak Hydrogen-Bonded Two Dimensional Network Structure to a Two-Dimensional Coordination Polymer on Heating

Crystal Growth & Design, 2008, (8), 391-394

2008

Mercury(II) acetate/thiocyanate coordination polymers with n-donor ligands, spectroscopic, thermal and structural studies

Inorganica Chimica Acta, In Press,

2008

Spectroscopic, Thermal and Structural Studies of a New Mercury(II) Complex of 4'-(4-Pyridyl)-2,2':6',2''-terpyridine (Pyterpy) Ligand, [Hg (Hpyterpy)(SCN)2]2(MeSO4)2

J. Iran. Chem. Soc., Vol. 5, No. 4, December 2008, pp. 574-578.

2008

Novel rare case of 2D + 1D = 2D polycatenation Hg(II) coordination polymer

CrystEngComm, 2009, (Advance Article)

2009

 

 

 

 

 

 

 

Papers Presented at National  and International Scientific Assemblies:

 

Title of Paper

Title and Place of Assembly

Date

Cocrystal of 2,2´-diamino-4,4´-bis(1,3-thiazole) with 2,2´-bipyridine and benzo-18-crown-6, Spectroscopic, Thermal and Structural studies

The 13th Iranian seminar of Organic chemistry, Hamadan-Iran

 

2007

Thallium(I) one-dimensional coordination polymer containing large tetranuclear metallacycle, [Tl2(μ-Htdp)2(μ-H2O)]n (H2tdp = 4,4,-thiodiphenol); thermal, fluorescence and structural studies

9th Iranian Inorganic chemistry conference, semnan - Iran

 

2007

Cyclic Voltammetry and Structural Studies of Silver(I) 2D Coordination polymer

7Biennial Electrochemistry Seminar of Iran ( 7BESI )

2007

Fluorescence Studies of Mercury (II) Coordination polymer with2,5-Bis (4-pyridyl)-1,3,4-oxadiazole(bpo) ligand

PHOTORADCHEM, 2007, (India), 153.

2007

Syntheses and Characterization of Three New Mercury(II) Complexes, [Hg(phen)2(SCN)2], [Hg(2,2´-bipy)2(SCN)2] and [Hg(phen)2(NO3)2], Thermal, Fluorescence and Structural Studies

14th Symposium of the Society of Crystallography & Mineralogy of iran

2006

X-ray Single crystal structure

Analyses of The (Z)-2(1,3- Dioxo -1.3 dihydro -2H-Isoindol-2-yl)-2-Butendiate

 

13th Symposium of the Society of Crystallography & Mineralogy of iran

2006

 

 

  

 

 

Refrenses:

 

Prof. Dr. A. A. Khandar

Department of Inorganic Chemistry, Faculty of Chemistry,

University of Tabriz, Tabriz, Iran.

E-mail address: akhandar@yahoo.com khandar@tabrizu.ac.ir

 

Dr. A. Morsali

Department of Chemistry, Faculty of Sciences,

Tarbiat Modares University, Tehran, Iran.

 E-mail address: morsali_a@yahoo.com morsali_a@modares.ac.ir

 

 

نویسنده : قدرت محمودی : ۱۱:۱۸ ‎ق.ظ ; یکشنبه ۳ آذر ،۱۳۸٧
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