Review: New Advances in the Coordination Chemistry of the Beryllium(ii)

Mederos, Alfredo; Domı́nguez, Sixto; Chinea, E.; Brito, Felipe; Cecconi, Franco

doi:10.1080/00958970108022906

Cited by 28 publications

(30 citation statements)

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“…The chemistry of aqueous solutions of beryllium(II) has been studied intensively and three reviews on this topic have been published recently [4][5][6]. Phosphates of adenosine are essential components in the storage, use and release of energy and most reactions involving them are either promoted or inhibited by metal ions.…”

Section: Introductionmentioning

confidence: 99%

Beryllium binding to adenosine 5′-phosphates in aqueous solution at 25°C

Alderighi

Domı́nguez

Gans

et al. 2008

Journal of Coordination Chemistry

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Equilibrium constants for the binding of beryllium(II) to the nucleotides: adenosine 5 0 -monophosphate, -diphosphate, and -triphosphate have been determined. The species formed are [BeL] (zÀ2)À , [Be(HL)] (zÀ3)À , [Be 2 (OH)L 2 ] (2zÀ3)À and [Be 3 (OH) 3 (HL) 3 ] (3zÀ6)À , where L zÀ represents the fully deprotonated nucleotide. When the complex contains a protonated ligand, the protonation site is an adenosine nitrogen. Formation of these complexes is unlikely to interfere, under physiological conditions, with the functioning of the nucleotides due to the precipitation of beryllium hydroxide in the pH range 6-7.

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Section: Introductionmentioning

confidence: 99%

Beryllium binding to adenosine 5′-phosphates in aqueous solution at 25°C

Alderighi

Domı́nguez

Gans

et al. 2008

Journal of Coordination Chemistry

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“…[19][20][21][22][23][24][25][26][27][28][29][30] Comprehensive studies have been conducted in recent years by the groups of Dehnicke, Schmidbaur, Weller, and Mederos, and extensive results are available in reviews. [1,14,[31][32][33] The [BeA C H T U N G T R E N N U N G (H 2 O) 4 ] 2 + cation has long been known from studies of the aqueous solution chemistry of beryllium. The cation is stable at pH < 3, but at higher pH values condensation reactions occur.…”

Section: Introductionmentioning

confidence: 99%

Reactions of Beryllium Halides in Liquid Ammonia: The Tetraammineberyllium Cation [Be(NH₃)₄]²⁺, its Hydrolysis Products, and the Action of Be²⁺ as a Fluoride‐Ion Acceptor

Kraus¹,

Baer²,

Buchner³

et al. 2012

Chemistry A European J

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The first structural characterization of the text-book tetraammineberyllium(II) cation [Be(NH(3))(4)](2+), obtained in the compounds [Be(NH(3))(4)](2)Cl(4)⋅17NH(3) and [Be(NH(3))(4)]Cl(2), is reported. Through NMR spectroscopic and quantum chemical studies, its hydrolysis products in liquid ammonia were identified. These are the dinuclear [Be(2)(μ-OH)(NH(3))(6)](3+) and the cyclic [Be(2)(μ-OH)(2)(NH(3))(4)](2+) and [Be(3)(μ-OH)(3)(NH(3))(6)](3+) cations. The latter species was isolated as the compound [Be(3)(μ-OH)(3)(NH(3))(6)]Cl(3)⋅7NH(3). NMR analysis of solutions of BeF(2) in liquid ammonia showed that the [BeF(2)(NH(3))(2)] molecule was the only dissolved species. It acts as a strong fluoride-ion acceptor and forms the [BeF(3)(NH(3))](-) anion in the compound [N(2)H(7)][BeF(3)(NH(3))]. The compounds presented herein were characterized by single-crystal X-ray structure analysis, (9)Be, (17)O, and (19)F NMR, IR, and Raman spectroscopy, deuteration studies, and quantum chemical calculations. The extension of beryllium chemistry to the ammine system shows similarities but also decisive differences to the aquo system.

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“…This is similar to other elements of the same period, such as boron and carbon, for which sixmembered ring chelates are the most stable. 9 While tetra-coordination is preferred, beryllium can also form two-and three-coordinate compounds, usually stabilized by the formation of fouror six-membered rings with sterically hindered chelating ligands such as N,N¤-chelating amidinates or β-diketiminates. 4 The small size of the Be 2+ cation leads to a large charge/radius ratio (Z/r = 6.45).…”

Section: Introductionmentioning

confidence: 99%

“…1b This highlight review focuses on recent developments within our group in the design of encapsulating ligands for the selective binding of beryllium. Also discussed is the development of electrospray ionization mass spectrometry (ESI-MS) and 9 Be nuclear magnetic resonance (NMR) spectroscopy as primary characterization tools for the analysis of coordination compounds containing beryllium, utilized to mitigate the risk of inhalation of beryllium particulates.…”

Section: Introductionmentioning

confidence: 99%