Journal ArticleDOI
Bismuth Phosphinates: Temperature-Dependent Formation of a Macrocycle and 1D Coordination Polymer
TLDR
In this paper, the reaction of Ph3Bi with a sterically hindered phosphinic acid, 1,1,2,3,3-pentamethyltrimethylene phosphinic acid, {cycP(O)OH·2H2O}, at two different temperatures, one at refluxing conditions and another at room temperature, in tetrahydrofuran has been investigated.Abstract:
The reaction of Ph3Bi with a sterically hindered phosphinic acid, 1,1,2,3,3-pentamethyltrimethylene phosphinic acid, {cycP(O)OH·2H2O}, at two different temperatures, one at refluxing conditions and another at room temperature, in tetrahydrofuran has been investigated. At refluxing conditions, cleavage of two Bi-C bonds (of BiPh3) leads to the formation of a 16-member macrocycle [(PhBi)4(cycPO2)8] (1). On the other hand, the reaction at room temperature leads to the cleavage of one Bi-C bond only, affording a 1D polymer [(Ph2Bi)(cycPO2)]n, ((1,1,2,3,3-pentamethyltrimethylene phosphinate is denoted as cycPO2) (2). Both the complexes were characterized by single crystal X-ray diffraction. In both complexes the phosphinate ligands are present in an anisobidentate (bridging) coordination mode.read more
Citations
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Journal ArticleDOI
Bismuth Phosphinates in Bi-Nanocellulose Composites and their Efficacy towards Multi-Drug Resistant Bacteria.
Melissa V. Werrett,Megan E. Herdman,Rajini Brammananth,Uthpala M. Garusinghe,Warren Batchelor,Paul K. Crellin,Ross L. Coppel,Philip C. Andrews +7 more
TL;DR: These phenyl bis-phosphinato bismuth(III) complexes show potential to be applied in materials in healthcare facilities, to inhibit the growth of bacteria capable of causing serious disease.
Book ChapterDOI
Antimony and bismuth as antimicrobial agents
TL;DR: In this article, a range of bismuth and antimony complexes in the +-III and +-V oxidation states and evaluated their efficacy toward the treatment of Leishmania or bacteria, including but not limited to: Helicobacter pylori, methicillin-resistant Staphylococcus aureus, vancomycin-resistant Enterococcus and Escherichia coli.
Journal ArticleDOI
Phosphinic acids as building units in materials chemistry
TL;DR: Diaryl and dialkyl phosphinic acids are diverse groups of ligands capable of bonding to a wide variety of metal ions as discussed by the authors, which allows for many applications in coordination polymers, modification of surfaces, synthesis of nanoparticles, and sol-gel synthesis.
Journal ArticleDOI
Bismuth and Titanium Phosphinates: Isolation of Tetra-, Hexa- and Octanuclear Clusters
TL;DR: The reaction of organobismuth precursors with trityl-H-phosphinic acid in varying reaction conditions afforded colorless crystals, whose single crystal X-ray characterization revealed the formation of monomer.
Journal ArticleDOI
Impact of structural changes in heteroleptic bismuth phosphinates on their antibacterial activity in Bi-nanocellulose composites
Megan E. Herdman,Melissa V. Werrett,Rebekah N. Duffin,Liam J. Stephens,Rajini Brammananth,Ross L. Coppel,Warren Batchelor,Philip C. Andrews +7 more
TL;DR: Four mono-phosphinato bismuth complexes used to produce antibacterial nanocellulose composites displayed an increased level of toxicity towards mammalian cells (COS-7, human and murine fibroblasts), where it was shown the complexes disrupt cellular membranes leading to cytotoxicity.
References
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Journal ArticleDOI
Lipophilic bismuth phosphates: a molecular tetradecanuclear cage and a 1D-coordination polymer. Synthesis, structure and conversion to BiPO4.
Vadapalli Chandrasekhar,Vadapalli Chandrasekhar,Ramesh K. Metre,Ramakirushnan Suriya Narayanan +3 more
TL;DR: The reaction of the phosphate monoester with BiPh3 in a 1 : 1 ratio in refluxing toluene afforded a tetradecabismuth-oxo-phosphate cage which affords a pure phase of BiPO4.
Journal ArticleDOI
Bi38 Oxocarboxylate Cages are Keplerates – Synthesis and Structural Characterization of Two Bi38 Oxocarboxylate Cages
TL;DR: The reaction of 3,5-dinitrobenzenecarboxylic acid with triphenylbismuth in a 1:1 stoichiometric ratio in toluene under reflux afforded two new Bi38 oxocarboxylate cages as discussed by the authors.
Journal ArticleDOI
Reactions of RTeCl3 (R = 2-phenylazophenyl) with Diorganophosphinic Acids. Te–C Bond Cleavage and Stabilization of the Te═O Motif in an Umbrella-Shaped Te5O11P2 Multi-metallacyclic Framework
Ramesh K. Metre,Subrata Kundu,Dipankar Sahoo,Vadapalli Chandrasekhar,Vadapalli Chandrasekhar +4 more