Bismuth Coordination Polymers with 2, 4, 6‐Pyridine Tricarboxylic Acid: High‐Throughput Investigations, Crystal Structures and Luminescence Properties. Issue 27 (12th July 2018)

• Record Type: Journal Article
• Authors: Rhauderwiek, Timo; dos Santos Cunha, César; Terraschke, Huayna; Stock, Norbert
• Is Part Of: European journal of inorganic chemistry. Issue 27(2018)
• Page Start: 3232
• Page End: 3240
• Publication Date: 2018-07-12
• Subjects: Coordination polymers -- Bismuth -- 2, 4, 6‐Pyridinetricarboxylic acid -- Luminescence -- High‐throughput methods; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201800154
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : Four new coordination polymers (CPs) were obtained under hydrothermal reaction conditions using 2, 4, 6‐pyridinetricarboxylic acid (H3 PTC) and Bi(NO3 )3 · 5H2 O. The systematic high‐throughput investigation of the system Bi 3+ /H3 PTC/NaOH/HNO3 /H2 O led to the compounds [Bi(PTC)(H2 O)2 ] (1 ), (H3 O)[Bi2 (PTC)(HPTC)2 (H2 O)2 ] (2 ), α‐[Bi(PTC)] (3 ) and β‐[Bi(PTC)] (4 ), which were structurally characterised by single‐crystal X‐ray diffraction. Compounds1 and2 crystallise in 2D layered structures, whereas3 and4 form 3D coordination networks. Employing the nomenclature proposed by Cheetham et al.1 and2 are classified as I 1 O 1 (mixed inorganic–organic layers), 3 as I 0 O 3 (3D coordination polymers) and4 as I 1 O 2 (mixed inorganic–organic 3D framework). In all cases the nitrogen atom of the linker is coordinated to the Bi 3+ ion, which therefore acts as a tridentate pincer‐type ligand. All title compounds were obtained as phase‐pure products employing conventional or microwave‐assisted heating, but the reproducibility of the synthesis depends on reactor size and material. In addition, the luminescence properties of1 and2 were studied resulting in a yellow and blue–green luminescence under UV light with emission maxima at 570 nm ( λ ex = 343 nm) and 483 nm ( λ ex = 347 nm) for1 and2, respectively. The differences in the spectroscopic properties could be assigned to the distinct coordination and chemical environments of the Bi 3+ ions within these compounds. Abstract : The systematic high‐throughput investigation of the system Bi 3+ /pyridine tricarboxylic acid (H3 PTC)/NaOH/HNO3 in H2 O under solvothermal reaction conditions resulted in the discovery of four new Bi carboxylates exhibiting various coordination modes, inorganic building units and luminescence properties.