Lead and Thallium Tetrakis(imidazolyl)borates: Modifying Structure by Varying Metal and Anion
- 17 June 2004
- journal article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 43 (14), 4272-4277
- https://doi.org/10.1021/ic0497984
Abstract
We are using the coordinating anions tetrakis(imidazolyl)borate and tetrakis(4-methylimidazolyl)borate to construct new metal−organic framework structures. In this report, we are exploring materials similar in composition to the previously reported layered network structure Pb[B(Im)4](NO3)(nH2O). The metal in this compound can be replaced with isoelectronic Tl(I), affording Tl[B(Im)4], and the borate can be modified by using 4-methylimidazole, resulting in Pb[B(4-MeIm)4](NO3) and Tl[B(4-MeIm)4]. Like the parent Pb[B(Im)4](NO3)(nH2O), Tl[B(Im)4] and Tl[B(4-MeIm)4] are layered network structures but both lack anions or solvent molecules in the interlayer spacing. The material Pb[B(4-MeIm)4](NO3), however, exhibits a 3D network structure that lacks an open topology, resulting from the increased stereochemical activity (greater steric bulk toward other ligands) of the 4-methylimidazole ring. Both of the Tl(I) solids display longer M−N bonds than observed in the analogous Pb(II) compounds; these lengths account for the decreased effect of the stereochemical activity of the 4-methylimidazole ring in Tl[B(4-MeIm)4].Keywords
This publication has 13 references indexed in Scilit:
- Hybrid Inorganic–Organic Solids: An Emerging Class of Nanoporous CatalystsTopics in Catalysis, 2003
- Crystal engineering. From molecules to materialsJournal of Molecular Structure, 2003
- Supramolecular Influences on Metal Ion Coordination: Lead(II) under Eight-coordinationSupramolecular Chemistry, 2003
- Tetrakis(imidazolyl)borate-Based Coordination Polymers: Group II Network Solids, M[B(Im)4]2(H2O)2 (M = Mg, Ca, Sr)Inorganic Chemistry, 2003
- Cyanocomplexes with one-dimensional structures: preparations, crystal structures and magnetic propertiesCoordination Chemistry Reviews, 2002
- Lewis-Base Adducts of Lead(II) Compounds. XXI. Revisitations: Synthesis and Structure of the Hydrated 1 : 2 Adduct of Lead(II) Bis(perchlorate) and 2,4,6-Tris(2-pyridyl)-1,3,5-triazine and a Low-Temperature Redetermination of the Structure of Bis(2-aminLewis-Base Adducts of Lead(II) CompoundsAustralian Journal of Chemistry, 2002
- Sol−Gel Synthesis of KVII[CrIII(CN)6]·2H2O: A Crystalline Molecule-Based Magnet with a Magnetic Ordering Temperature above 100 °CJournal of the American Chemical Society, 1999
- Direct Evidence for R − Rotons Having Antiparallel Momentum and VelocityScience, 1999
- Lone Pair Functionality in Divalent Lead CompoundsInorganic Chemistry, 1998
- Spiro Cations based on Bis-Bidentate Tetrakis(1-Pyrazolyl)Borate LigandJournal of Coordination Chemistry, 1972