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Journal articles on the topic 'Beryllium(II) Complexes'

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Published: 5 June 2025

Last updated: 15 July 2025

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1

K., KRISHNANKUTTY, and UMMER P. "Beryllium(II), Cobalt(II), Nickel(II) and Copper(II) Complexes of Methyl 2-Phenylazo-3-oxobutanoate." Journal of Indian Chemical Society Vol. 66, Mar 1989 (1989): 194–96. https://doi.org/10.5281/zenodo.6134674.

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Department of Chemistry, University of Calicut, Calicut-678 686 <em>Manuscript received 27 May 1988, revised 11 October 1988, accepted 14 December 1988</em> IN continuation of our studies on 2-arylazo-1,3- dicarbonyls and their metal complexes<sup>1-4</sup>. we report the synthesis and characterisation of the Be<sup>lI</sup>, Co<sup>II</sup>, Ni<sup>II</sup> and Cu<sup>ll</sup> complexes of methyl 2-phenylazo-3-oxobutanoate (phenylazomethylacetoacetate, HL).

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2

B.S., SEKHON. "Stability Constants of Mercury(II) and Beryllium(II) Complexes with 5-Substltuted-uracils." Journal of Indian Chemical Society Vol. 64, May 1987 (1987): 308–9. https://doi.org/10.5281/zenodo.6222469.

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Department of Chemistry, Punjab Agricultural University, Ludhiana-141 004 <em>Manuscript received 3 March 1986, revised 26 March 1987, accepted 24 April 1987</em> Stability Constants of Mercury(II) and Beryllium(II) Complexes with 5-Substituted-uracils.

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3

A., K. ROUL, and K. PATNAIK R. "Stability of Complexes of Penicillamine with Beryllium-, Copper-, Nickel-, Zinc-, Cadmium- and Lead(II)." Journal of Indian Chemical Society Vol. 69, Jun 1992 (1992): 327–28. https://doi.org/10.5281/zenodo.6088930.

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Post-Graduate Department of Chemistry, Regional Engineering College, Rourkela-769 008 <em>Manuscript received 11 August 1989, revised 23 March 1992, accepted 10 April 1992</em> Stability of Complexes of Penicillamine with Beryllium-, Copper-, Nickel-, Zinc-, Cadmium- and Lead(II). 

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4

Schmidt, Michael, Andreas Bauer, Annette Schier, and Hubert Schmidbaur. "Complexation of Beryllium(II) by Maleic and Succinic Acid." Zeitschrift für Naturforschung B 53, no. 7 (1998): 727–33. http://dx.doi.org/10.1515/znb-1998-0713.

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Abstract Beryllium succinate dihydrate [Be(C4H4O4)](H2O)2 is formed in the reaction of equimolar quantities of beryllium sulfate, succinic acid and barium hydroxide in aqueous solution at pH 3.2. Sodium, potassium, and ammonium bis(succinato)beryllates M2[Be(C4H4O4)2] are obtained using the same reagents in the molar ratio 1:2:1 and adjusting the pH to 6.3-6.5 with NaOH, KOH or concentrated aqueous ammonia, respectively. The corresponding potassium bis(maleato)beryllate is prepared similarly and obtained as a crystalline monohydrate, the structure of which has been determined by X-ray methods. The lattice contains spiro-bicyclic dianions with the Be atom chelated by two dicarboxylate ligands. The compounds undergo slow hydrolysis in water as shown by time-and pH-dependent 9Be NMR spectroscopy. In the neutral region (pH 6.5-6.9) the maleinato complexes are in an equilibrium with trinuclear compounds M3{[Be(C4H2O4)OH]3} as the predominating species, while in acid solution (at pH 1.3) only the aquo complex [Be(H2O4]2+ remains. In the intermediate pH region various complexes of the above types coexist, with only very slow ligand exchange (on the NMR time scale).

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5

Cecconi, Franco, Erasmo Chinea, Carlo A. Ghilardi, Stefano Midollini, and Annabella Orlandini. "Complexes of salicylaldehyde and related ligands with beryllium(II) ion. X-ray crystal structures of bis(N-isopropylsalicylaldiminato) beryllium(II) and bis(N-phenylsalicylaldiminato)beryllium(II)." Inorganica Chimica Acta 260, no. 1 (1997): 77–82. http://dx.doi.org/10.1016/s0020-1693(96)05536-3.

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6

Tewari, Brij Bhushan. "Paper ionophoretic technique in the study of biologically important beryllium(II) / cobalt(II)-homoserine binary complexes in solution." Macedonian Journal of Chemistry and Chemical Engineering 29, no. 2 (2010): 139. http://dx.doi.org/10.20450/mjcce.2010.160.

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Quantitative indication of the process of forming a complex comes from the evaluation of the stability constants, which characterize the equilibria corresponding to the successive addition of ligands. A method, involving the use of paper electrophoretic technique is described for the study of binary complex system in solution. Present method is based upon the migration of a spot of metal ions on a paper strip at different pH’s of background electrolyte. A graph of pH against mobility gives information about the binary complexes and permits calculation of their stability constants. The first and second stability constants of [Be(II)-homoserine] and [Co(II)-homoserine] complexes were found to be (7.13 ± 0.02; 6.11 ± 0.09) and (4.27 ± 0.07; 3.47 ± 0.11) (logarithm stability constant values) for Be(II) and Co(II) complexes, respectively, at ionic strength of 0.1 mol/L and a temperature of 35 °C.

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7

Valle, Ana, Erasmo Chinea, Sixto Domı́nguez, Alfredo Mederos, Stefano Midollini, and Alberto Vacca. "Complexes of beryllium(II) in aqueous solution with 3-phosphonopropionic acid." Polyhedron 18, no. 25 (1999): 3253–56. http://dx.doi.org/10.1016/s0277-5387(99)00260-0.

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8

Martínez, Ramón, Felipe Brito, Mary Lorena Araujo, Fernando Ruette, and Aníbal Sierraalta. "Theoretical study of beryllium (II) complexes using CATIVIC: New parametric method." International Journal of Quantum Chemistry 97, no. 4 (2003): 854–64. http://dx.doi.org/10.1002/qua.10786.

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9

Barbaro, Pierluigi, Franco Cecconi, Dainis Dakternieks, et al. "Beryllium(II) Complexes of the Kläui Tripodal Ligand Cyclopentadienyltris(diethylphosphito-P)cobaltate(−)." Inorganic Chemistry 40, no. 12 (2001): 2725–29. http://dx.doi.org/10.1021/ic010021+.

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10

VISHNU, KOLHE. "Study of Equilibrium Constants of Beryllium(II) Teternary Complexes at different Ionic Strengths." Journal of Indian Chemical Society Vol. 73, Nov 1996 (1996): 567–71. https://doi.org/10.5281/zenodo.5913975.

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School of Studies tn Chemistry, Jiwaji University, Gwahor-474 011 <em>Manuscript received 7 March 1991, revised </em>28 December 1994, accepted 28 March 1995 Formation constants of 1 : 1 binary Be<sup>II</sup>-L/L' and 1 : 1 : 1 ternary Be<sup>II</sup>-L-L' complexes, where L = salicylic acid (SA), monosodium salt of 5-sulphosalicylic acid (SSA) and 3,5-dinitrosalicylic acid (DNSA) and L' = 2-hydroxyacetophenone (HAP), 2,5-dihydroxyacetophenone (DHAP) and 5-chloro-2-hydroxyacetophenone (CHAP), have been determined potentiometrically in 20% (v/v) ethanolic aqueous medium at 25<sup>°</sup> and at three different ionic strengths of 0.15, 0.10 and 0.05 <em>M</em> (NaNO<sub>3</sub>).

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11

Ciavatta, Liberato, Mauro Iuliano, Raffaella Porto, Paolo Innocenti, and Alberto Vacca. "Phosphato complexes of beryllium(II): a 31P and 9Be nuclear magnetic resonance study." Polyhedron 19, no. 9 (2000): 1043–48. http://dx.doi.org/10.1016/s0277-5387(00)00345-4.

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12

AOKI, Izuo, and Kunihiro WATANABE. "Effect of metal-ligand ratio on fluorescence properties of zinc(II) and beryllium(II) Schiff base complexes." Bunseki kagaku 37, no. 7 (1988): 333–38. http://dx.doi.org/10.2116/bunsekikagaku.37.7_333.

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13

SNEH, LATA, K. SHARMA HEMANT, N. DUBEY S., and M. PURI D. "Metal Derivatives of Antimony Thiocarboxylates. Part-II. Complexes of Beryllium-, Manganese-, Iron-, Cobalt-, Copper-, Zinc-, Cadmium- and Lead(II) with Antimony Hydrogen Bis(thiolactate)." Journal of Indian Chemical Society Vol. 68, Mar 1991 (1991): 121–23. https://doi.org/10.5281/zenodo.5954960.

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Chemistry Department, Kurukshetra University, Kurukshetra-132 119 <em>Manuscript received 13 July 1989, revised 14 November 1990, accepted 4 March 1991</em> The complexes of bivalent Be Mn, Fe, Co, Cu, Zn, Cd and Pb with antimony hydrogen bis(thiolactate) have been synthesised and characterised by elemental analyses magnetic measurements infrared and electronic reflectance spectral data The formation constants of the complexes formed by Be<sup>II</sup>, Co<sup>II</sup>, Ni<sup>II</sup> and Zn<sup>II</sup> ions have also been determined potentiometrically at \(30\pm\) 0.05° using Calvin-Bierrum pH-titration technique as modified by Irving and Rossotti (<em>µ</em> =0.01 <em>M</em> NaClO<sub>4</sub>).

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14

NISHIDA, Hiroshi. "Species of beryllium(II)-Chromazurol S complexes formed in weakly acidic solutions by spectrophotometry." Bunseki kagaku 39, no. 2 (1990): 87–93. http://dx.doi.org/10.2116/bunsekikagaku.39.2_87.

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15

Mederos, Alfredo, Felipe Brito, Pedro Gili, and Sixto Domínguez. "Complexes of beryllium(II) with N -(2-Acetoamido) iminodiacetate and ligands containing a phosphonate group." Journal of Coordination Chemistry 62, no. 1 (2008): 3–13. http://dx.doi.org/10.1080/00958970802474854.

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16

(Mrs.), SUSHMA SHARMA, K. SAXENA K., and S. SAXENA R. "Stabihties and Thermodynamics of Beryllium(ll), Oxovanadium(Il) and Zirconium(IV) Complexes of ( L )-2- Aminobutanedioic acid-4-amide." Journal of Indian Chemical Society Vol. 63, May 1986 (1986): 479–80. https://doi.org/10.5281/zenodo.6294011.

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Department of Chemistry, Malaviya Regional Engineering College, Jaipur-302 017 <em>Manuscript received 22 September 1984, revised 20 August 1985, accepted 3 March 1986</em> The stability constants of Be<em><sup>II</sup></em>, VO<em><sup>II</sup> </em>and Zr<sup><em>II</em> </sup><em> </em>complexes of (L)-2-aminohutanedioic acid-4-amide have been determined in aqueous medium at different temperatures, <em>viz. </em>25, 35 and 45° and varying ionic strengths <em>µ </em>- 0.1, 0.2, 0 5 and 1.0 <em>M </em>KNO<sub>3</sub> employing Calvin Melchior's extension of Bjerrum's method and refined by least-square treatment. The thermodynamic functions ∆G°, ∆H° and ∆S° accompanying complex formation have also been evaluated at 35<sup>0</sup>.

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17

Piispanen, J., L. H. J. Lajunen, Johann G. Leipoldt, et al. "Complex Formation Equilibria of Some Aliphatic alpha-Hydroxycarboxylic Acids. 3. A Study of Beryllium(II) Complexes." Acta Chemica Scandinavica 50 (1996): 1074–80. http://dx.doi.org/10.3891/acta.chem.scand.50-1074.

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18

Tewari, B. B. "Paper electrophoretic determination of the stability constants of biologically significant binary complexes of beryllium(II) and cobalt(II) with sarcosine." Russian Journal of Inorganic Chemistry 56, no. 1 (2011): 133–38. http://dx.doi.org/10.1134/s0036023611010220.

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19

AOKI, Izuo, Kunihiro WATANABE, and Takashi SAITOH. "Fluorescence properties of zinc(II) and beryllium(II) salicylidene-alkylamine Schiff base complexes and effect of methyl group on fluorescence characterization." Bunseki kagaku 36, no. 4 (1987): 250–55. http://dx.doi.org/10.2116/bunsekikagaku.36.4_250.

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20

Davis, Martin F., William Levason, Raju Ratnani, Gillian Reid, and Michael Webster. "Synthesis, spectroscopic studies and structural systematics of phosphine oxide complexes with Group II metal (beryllium–barium) nitrates." New J. Chem. 30, no. 5 (2006): 782–90. http://dx.doi.org/10.1039/b600301j.

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21

Singh, Devender, Shri Bhagwan, Vijeta Tanwar, and Raman Kumar Saini. "Synthesis and optical characterization of color-tunable heterocyclic ligand based beryllium(II) complexes for white lighting applications." Materials & Design 100 (June 2016): 245–53. http://dx.doi.org/10.1016/j.matdes.2016.03.118.

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22

Alderighi, Lucia, Franco Cecconi, Carlo A. Ghilardi, et al. "Complexes of beryllium(II) with substituted malonates. Crystal structure of K2[Be(C4H6(COO)2)2]·2H2O." Polyhedron 18, no. 25 (1999): 3305–12. http://dx.doi.org/10.1016/s0277-5387(99)00268-5.

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23

Khouna, M. A. M., M. T. Ben Dhia, and M. R. Khaddar. "Beryllium(II) Complexes with Bis(dimethylamino)phosphorylfluoride: A Multinuclear NMR (31P, 19F, and 9Be) Characterization in Solution." Phosphorus, Sulfur, and Silicon and the Related Elements 178, no. 11 (2003): 2309–17. http://dx.doi.org/10.1080/714040945.

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24

Mingazova, Marina Sergeevna, Elena Petrovna Miroshnikova, Azamat Еrsainovich Arinzhanov, and Julia Vladimirovna Kilyakova. "The effect of a complex of biologically active substances on the chemical composition of carp muscle tissue." Agrarian Scientific Journal, no. 7 (September 2, 2024): 77–82. https://doi.org/10.28983/asj.y2024i7pp77-82.

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Currently, it is important to use biologically active substances in fish diets to increase productivity and reduce economic costs. Also, the additional use of drugs has a positive effect on the physiological state of the body. This study presents the results of studying the effect of a complex of biologically active substances on the concentration of chemical elements in carp muscle tissue. We used two complexes: I – vanillin + ultrafine particles SiO2 and II – vanillin + ultrafine particles SiO2 + enzyme preparations Amylosubtilin and Glucavamorin. The substances were applied to the KRK-110 feed by spraying: vanillin at a dosage of 250 mg/kg of feed, ultrafine particles SiO2 – 200 mg/kg of feed, Amylosubtilin – 0.5 g/kg of feed, Glucavamorin – 0.5 g/kg of feed. The object of the study was carp yearlings. According to the results of the study, it was found that complexes of biologically active substances have a positive effect on the live weight of carp, leading to a growth-stimulating effect (P?0.05) from the sixth week of the study. During the study, it was found that complexes of biologically active substances do not affect the pool of macronutrients in comparison with the control. We have noted a general tendency towards a decrease in the pool of essential and conditionally essential trace elements. For group I, a decrease in a number of trace elements was found from 22.6% (P?0.05) to 40.7% (P?0.01) compared with the control, for group II – from 21.8% (P?0.05) to 46.3% (P?0.001), with an increase in vanadium by 69.1% (P?0.05). When studying toxic elements in fish tissues, a decrease in the pool of elements in groups I and II was found for such indicators as arsenic, mercury and tin – by 30.1% (P?0.05) and 23.3% (P?0.05), by 44.2% (P?0.01) in group I and by 45.3% (P?0.01), by 35.7% (P?0.05) and 32.1% (P?0.05) in group II. Also, in group I, the level of aluminum decreased by 60.4% (P?0.001) and beryllium by 48.9% (P?0.05) relative to the control.

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25

Koide, Makoto, Honoh Suzuki, and Shin-ichi Ishiguro. "Steric solvent effect on small and large cations: calorimetric study of halogeno and thiocyanato complexes of beryllium(II) and cadmium(II) in N,N-dimethylacetamide." Journal of the Chemical Society, Faraday Transactions 91, no. 21 (1995): 3851. http://dx.doi.org/10.1039/ft9959103851.

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26

Sanhoury, M. A. M. Khouna, M. T. Ben Dhia, M. Nsangou, and M. R. Khaddar. "Beryllium(II) complexes with (R2N)2P(O)F (R=Me or Et): Synthesis and characterisation by multinuclear (31P, 19F and 9Be) NMR in solution." Polyhedron 25, no. 6 (2006): 1373–78. http://dx.doi.org/10.1016/j.poly.2005.09.015.

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27

Essalah, K., M. A. K. Sanhoury, M. T. Ben Dhia, and M. R. Khaddar. "Beryllium (II) Chloride Complexes with Phosphoryl Ligands: A DFT Study." International Research Journal of Pure and Applied Chemistry, February 26, 2021, 38–46. http://dx.doi.org/10.9734/irjpac/2021/v22i130366.

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Beryllium complexes of the types [BeCl2L2] (L = (Me2N)3P(O) (1), (Me2N)2P(O)F (2), Me2NP(O)F2 (3) and P(O)F3 (4)) have been theoretically studied by means of DFT geometry optimization and NMR chemical shift calculations (B3LYP/6-31G(d)). A good correlation was found between calculated and experimental data for complex 2. On going from complex 1 to 4, the Be-L bond underwent considerable lengthening, while that of Be-Cl was shortened (Be-O: 1.646 in 1 vs. 1.740 A° in 4; Be-Cl: 2.043 in 1 vs. 1.953 A° in 4). In the same way, the Be-O-P bond angle was found to decrease from 135° for 1 to 124° for 4. The trends are in good agreement with the calculated metal-ligand binding energies of complexes 1-4. Interestingly, the structural changes are accompanied by increased 9Be chemical shifts towards higher frequencies as the Me2N groups in the ligand are substituted by fluorine atoms. The results were compared to corresponding complexes with tin (IV) chloride, [SnCl4L2]. The theoretical data showed that the use of the 6-31G* basis set could efficiently predict the 9Be NMR chemical shifts in the complexes [BeCl2L2].

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28

Buchner, Magnus Richard, Fabian Dankert, Chantsalmaa Berthold, Matthias Müller, and Carsten von Hänisch. "Beryllium‐Mediated Halide and Aryl Transfer onto Silicon." Chemistry – A European Journal, August 17, 2023. http://dx.doi.org/10.1002/chem.202302652.

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The reactivity of hexamethylcyclotrisiloxane (D3) towards BeCl2, BeBr2, BeI2 and [Be3Ph6]3 was investigated. While BeCl2 only showed unselective reactivity, BeBr2, BeI2 and [Be3Ph6] cleanly react to trinuclear complexes [Be3Br2(OSiMe2Br)4], [Be3I2(OSiMe2I)4] and [Be3Ph2(OSiMe2Ph)4]. This unprecedented bromide, iodide and phenyl transfer reactions from a group II metal onto silicon offer a versatile access to previously unknown diorgano bromo and iodo silanolates.

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29

TEWARI, B. B. "PAPER ELECTROPHORESIS TECHNIQUE IN THE STUDY OF BIOLOGICALLY IMPORTANT BINARY COMPLEXES IN SOLUTION (THE SYSTEM BERYLLIUM(II) - AND COBALT(II) - NORVALINE)." Journal of the Chilean Chemical Society 55, no. 2 (2010). http://dx.doi.org/10.4067/s0717-97072010000200004.

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