Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Novel Co5 Cluster Based Triazole Bridged Cobalt-Fluorophosphate: Synthesis, Structure, Magnetic and Heterogeneous Catalytic Epoxidation Studies

Journal Article · · European Journal of Inorganic Chemistry
 [1];  [1];  [2];  [3];  [4];  [4];  [5]; ORCiD logo [4]
  1. Adamas University, Barasat (India)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  3. Universidade Federal Fluminense, Rio de Janeiro (Brazil); Pontifícia Universidade Católica, Rio de Janeiro (Brazil)
  4. University of Aveiro (Portugal)
  5. Universidade Federal Fluminense, Rio de Janeiro (Brazil); Universidad de Sevilla (Spain)
+ Show Author Affiliations

A novel triazole bridged cobalt fluorophosphate coordination polymer with the formula {Co5(1,2,4-triazole)2(OH)2(PO3F)4}n has been synthesized. Single crystal X-ray studies reveal that the compound comprises of Co5 clusters which ultimately build the whole framework, here all cobalt centers are in octahedral geometry established from continuous shape analysis. All the cobalt centers are in Co(II) oxidation state and the results are supported by the bond valence sum (BVS) calculation. The sample has been characterized by single crystal X-ray, powder X-ray, FTIR and TGA analysis. The compound was tested for olefin catalysis performance and magnetism. Magnetization measurements reveal overall antiferromagnetic interactions among the Co(II) ions. The compound is very active in the catalytic transformation of olefins to their corresponding epoxides. In conclusion, catalytic epoxidation studies reveal that cyclohexene and styrene can be converted up to 97% with almost 65% selectivity of products with higher TON numbers.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2217739
Journal Information:
European Journal of Inorganic Chemistry, Vol. 26, Issue 21; ISSN 1434-1948
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

Deconstruction of Crystalline Networks into Underlying Nets: Relevance for Terminology Guidelines and Crystallographic Databases journal May 2018
Metal-Catalyzed Epoxidations of Alkenes with Hydrogen Peroxide journal July 2003
Heterogeneous Catalytic Oxidation by MFU-1: A Cobalt(II)-Containing Metal-Organic Framework journal September 2009
Synthesis, Structural Aspects and Catalytic Performance of a Tetrahedral Cobalt Phosphonate Framework journal July 2013
A Novel Open-Framework Cobalt Phosphate Containing a Tetrahedrally Coordinated Cobalt(II) Center: CoPO4· 0.5 C2H10N2 journal March 1994
Unique asymmetric catalysis of cis-? metal complexes of salen and its related Schiff-base ligands journal January 2004
A new layered metal–organic framework as a promising heterogeneous catalyst for olefin epoxidation reactions journal January 2012
Cobalt Complexes as an Emerging Class of Catalysts for Homogeneous Hydrogenations journal August 2018
Shape maps and polyhedral interconversion paths in transition metal chemistry journal September 2005
Transition Metal-Catalyzed Epoxidation of Alkenes book August 2004
Comparison of silver and molybdenum microfocus X-ray sources for single-crystal structure determination journal January 2015
Underlying nets in three-periodic coordination polymers: topology, taxonomy and prediction from a computer-aided analysis of the Cambridge Structural Database journal January 2011
Nonenzymatic Glucose Sensing and Magnetic Property Based On the Composite Formed by Encapsulating Ag Nanoparticles in Cluster-Based Co-MOF journal December 2019
Water oxidation catalyzed by two cobalt complexes: new challenges and questions journal January 2018
Transition-metal complexes for liquid-phase catalytic oxidation: some aspects of industrial reactions and of emerging technologies journal January 2003
Applied Topological Analysis of Crystal Structures with the Program Package ToposPro journal May 2014
Coordination tuning of cobalt phosphates towards efficient water oxidation catalyst journal September 2015
A chiral open-framework fluorinated cobalt phosphate consists of distorted F-encapsulated double 4-ring units with bulk homochirality journal January 2019
Metamagnetism in Cobalt Phosphates with Pillared Layer Structures:  [Co3(pyz)(HPO4)2F2] and [Co3(4,4‘-bpy)(HPO4)2F2]·xH2O journal March 2004
Solvent-Free Synthesis of Crystalline Metal Phosphate Oxalates with a (4,6)-Connected fsh Topology journal September 2015
Cobalt‐Based 3D Metal–Organic Frameworks: Useful Candidates for Olefin Epoxidation at Ambient Temperature by H2O2 journal August 2013
Layered Transition Metal Carboxylates: Efficient Reusable Heterogeneous Catalyst for Epoxidation of Olefins journal October 2009
Heterogeneous catalytic epoxidation of olefin over a hydrothermally synthesized 3D phosphate bridged copper(II) framework journal June 2013
A pentanuclear {Co5} cluster motif forming a capped breathing kagomé lattice journal January 2021
Three-Dimensional Open-Framework Cobalt(II) Phosphates by Novel Routes journal March 2000
Selective Catalytic Olefin Epoxidation with Mn II -Exchanged MOF-5 journal December 2017
Assembly of Three New Co2/Mn5/Co5-Cluster-Based Metal–Organic Frameworks: Syntheses, Structure, Thermal Stability and Magnetic Properties journal July 2021
Structure and magnetic properties of V2(VO)(P2O7)2. A mixed-valence vanadium(III,III,IV) pyrophosphate journal May 1988
Multiarylpolycarboxylate-Mediated Hybrid Cobalt Phosphate Frameworks with Supramolecular Zeolitic Topology and Unusual I2O2 Connectivity journal January 2015
Exploration of a Simple Universal Route to the Myriad of Open-Framework Metal Phosphates journal March 2000
Tuning the olefin epoxidation by manganese(iii) complexes of bisphenolate ligands: effect of Lewis basicity of ligands on reactivity journal January 2014
Bond-valence parameters obtained from a systematic analysis of the Inorganic Crystal Structure Database journal August 1985
A Cobalt(II)‐containing Metal‐Organic Framework Showing Catalytic Activity in Oxidation Reactions journal September 2008

Similar Records

Manganese(II) complexes of 1,1'-bis[(pyridin-2-yl)methyl)]-2,2'-bipiperidine (PYBP): Synthesis, structure, catalytic properties in alkene epoxidation with hydrogen peroxide, and related mechanistic studies
Journal Article · 2022 · Inorganica Chimica Acta · OSTI ID:2419158
+2 more
Selective, tunable O2 binding in cobalt(II)–triazolate/pyrazolate metal–organic frameworks
Journal Article · 2016 · Journal of the American Chemical Society · OSTI ID:1254878
+4 more
Selective adsorption in two porous triazolate–oxalate-bridged antiferromagnetic metal-azolate frameworks obtained via in situ decarboxylation of 3-amino-1,2,4-triazole-5-carboxylic acid
Journal Article · 2015 · Journal of Solid State Chemistry · OSTI ID:22475540
+2 more

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Cobalt
Co5 cluster
Fluorophosphate
Heterogeneous catalysis
Epoxidation