Journal Title
Title of Journal: J Clust Sci
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Abbravation: Journal of Cluster Science
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Publisher
Kluwer Academic Publishers-Plenum Publishers
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Authors: Dale Cave John F Corrigan Andreas Eichhöfer Dieter Fenske Collin M Kowalchuk Harald Rösner Petra Scheer
Publish Date: 2006/12/22
Volume: 18, Issue: 1, Pages: 157-172
Abstract
The thermal properties of a series of the six copper selenide cluster molecules Cu26Se13PEt2R14 R = Ph Et Cu44Se22PEt2Ph18 Cu70Se35PEt2R23 R = Ph Et and Cu140Se70PEt334 have been investigated along with a characterization of their thermolysis products For all cluster molecules the phosphine ligand shells are cleaved at temperatures between 60°C and 200°C depending on the experimental conditions Helium gas flow or vacuum the type of phosphine ligand and the size of the cluster molecules The residues of the thermal treatment to 150°C were found to be nanostructured Cu2Se with crystallite sizes of approximately 12–16 nm which means that the 1–25 nm sized cluster cores of the precursor cluster molecules simultaneously grow during this process A mixture of processes and factors including the strength of the Cu–P bond the boiling point of the phosphine ligand as well as the thermal stability of the copper selenide clusters against formation of the bulk material determine the shape of the TGA curves We found some indications in the TGA along with differential scanning calorimetry DSC which suggest that the cleavage of the phosphine ligands is probably mostly determined by the tendency of the metastable clusters to form the bulk material meaning their thermodynamic stability and not by the strength of the Cu–P bond The data for the series of PEt3 ligated clusters reveal that this stability is dependent on the size of the cluster molecules
Keywords:
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Other Papers In This Journal:
- Reactivity of Alkyne-Substituted Transition Metal Clusters: An Overview
- Molybdenum Bisphosphonates with Cr(III) or Mn(III) Ions
- Novel Nanomaterials Based on Inorganic Molybdenum Octahedral Clusters
- Computer Simulation of Binary Platinum–Cobalt Nanoclusters Interaction with Oxygen
- A New Sandwich Polyoxometalate Constructed from a Zn 6 12+ Hexagon Cluster Sandwiched by Two B-α-[BiW 9 O 33 ] 9−
- Synthesis and Characterization of Stable Iron Oxide Nanoparticle with Amino Covalent Binding on the Surface for Biomedical Application
- Reactions of Unsaturated Quinoline Triosmium Clusters [Os 3 (CO) 9 (μ 3 -η 2 -C 9 H 5 (4-R)N)(μ-H)] (R=Me or H) with Tetramethylthiourea: X-ray Structures of [Os 3 (CO) 8 (μ-η 2 -C 9 H 5 (4-Me)N)(η 2 -SC(NMe 2 NCH 2 Me)(μ-H) 2 ] and [Os 3 (CO) 9 (μ-η 2 -C 9 H 6 N)(η 1 -SC(NMe 2 ) 2 )(μ-H)]
- Introducing Transition-Metal Complex Together with Conjugated Ligand into Polymeric Iodoplumbate: Structure Characterization, Properties and Theoretical Study of a New Semi-Conductive Hybrid: {[Cu(II)(2,2′-bipy) 3 ][Pb 2 I 6 ]} n
- Synthesis of Platinum Nanoparticles-Decorated Poly( p -Phenylenediamine) Colloids with a High Performance for Methanol Electrocatalysis for Direct Methanol Fuel Cells
- Low-Energy Structures of Binary Pt–Sn Clusters from Global Search Using Genetic Algorithm and Density Functional Theory
- Synthesis and Characterization of a 3-D Framework Constructed from [V 12 B 18 O 54 (OH) 6 (H 2 O)] 10− Clusters and K + Cations
- Structural, Electronic, and Magnetic Properties of MB n (M = Y, Zr, Nb, Mo, Tc, Ru, n ≤ 8) Clusters
- Small Tin Oxide Grains: Structural and Electronic Properties Evaluated using the Density Functional Theory
- One Novel Trinuclear Nickel(II) Cluster Containing a Pyramidal Ni 3 ( μ 3 -OH) Core: Crystal Structure and Hirshfeld Surface Analysis
- Mosquitocidal, Antimalarial and Antidiabetic Potential of Musa paradisiaca -Synthesized Silver Nanoparticles: In Vivo and In Vitro Approaches
- Properties of Au/ZnO Nanocomposite Prepared by Laser Irradiation of the Mixture of Individual Colloids
- Properties of Au/ZnO Nanocomposite Prepared by Laser Irradiation of the Mixture of Individual Colloids
- Foreword
- Metal-to-Ligand Ratio Effect on the Size of Copper Iodide and Copper Bromide Clusters in 1,4-Bis(cyclohexylthio)butane-Spanned Coordination Polymers
- Bio-template Synthesis of Nanoparticle by Cage-shaped Protein Supramolecule, Apoferritin
- Au Nanoparticles Supported Nanoporous ZnO Sphere for Enhanced Photocatalytic Activity Under UV-Light Irradiation
- One-Dimensional Bi 2 WO 6 Nanofibers Controllable Synthesis by Electrospinning and Enhanced Visible Photocatalytic Degradation Performances
- New Member of Organic Ligand Functionalized TMSP: Synthesis, Characterized and Properties of Na 15 [(Mn II (COOH)) 3 (AsW 9 O 33 ) 2 ]·15H 2 O
- Facile Synthesis of ZIF-8/ZnO/Polyoxometalate Ternary Composite Materials for Efficient and Rapid Removal of Cationic Organic Dye
- The Reactions of Two New Alkoxy-silyl Functionalized Alkynes with M 3 (CO) 12 {M = Fe, Ru} and Co 2 (CO) 8 . Spectroscopic Identification of the Products
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