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Journal articles on the topic 'Phosphonic acid'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Maurya, Sandip, Katie Lim, Zhendong Hu, Hongfei Jia, Jeffrey Michael Klein, and Yu Seung Kim. "Alkyl Phosphonic Acids: An Alternative to Phosphoric Acid in HT-Pemfcs." ECS Meeting Abstracts MA2022-02, no. 41 (2022): 1510. http://dx.doi.org/10.1149/ma2022-02411510mtgabs.

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Phosphoric acid has received the most attention as a choice of electrolyte for a high-temperature proton exchange membrane fuel cell (HT-PEMFC). Phosphoric acid has many attractive properties such as high anhydrous conductivity, good compatibility with hydrocarbon membranes, and thermal stability [1], which enables high fuel cell performance under anhydrous and elevated operating temperatures (140-180 oC) [2-3]. However, phosphoric acid has undesirable properties such as high catalyst poisoning, high evaporation rate at > 200 oC, and low acid retention from the doped membrane. Alkyl phospho

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2

Weinberger, Christian, Tatjana Heckel, Patrick Schnippering, et al. "Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction." Nanomaterials 9, no. 2 (2019): 249. http://dx.doi.org/10.3390/nano9020249.

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The combined benefits of moisture-stable phosphonic acids and mesoporous silica materials (SBA-15 and MCM-41) as large-surface-area solid supports offer new opportunities for several applications, such as catalysis or drug delivery. We present a comprehensive study of a straightforward synthesis method via direct immobilization of several phosphonic acids and phosphoric acid esters on various mesoporous silicas in a Dean–Stark apparatus with toluene as the solvent. Due to the utilization of azeotropic distillation, there was no need to dry phosphonic acids, phosphoric acid esters, solvents, or

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3

Arunagiri, Karthik, Andrew Jark-Wah Wong, Luis A. Briceno-Mena, Michael John Janik, Jose A. Romagnoli, and Christopher G. Arges. "Deconvolution of Charge-Transfer, Mass Transfer, and Ohmic Resistances of Phosphonic Acid-Sulfonic Acid Ionomer Binders in Electrochemical Hydrogen Pumps." ECS Meeting Abstracts MA2023-02, no. 39 (2023): 1928. http://dx.doi.org/10.1149/ma2023-02391928mtgabs.

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Ion-pair high-temperature polymer electrolyte membranes (HT-PEMs) paired with phosphonic acid ionomer electrode binders have substantially improved the performance of HT-PEM electrochemical hydrogen pumps (EHPs)1, 2 and fuel cells3. Recently, blending poly(pentafluorstyrene-co-tetrafluorostyrene phosphonic acid) (PTFSPA) with NafionTM improved ionomer conductivity under anhydrous conditions in the temperature range of 100 °C to 250 °C. Using the said polymer blend as an electrode binder resulted in a 2 W.cm-2 peak power density of fuel cells4 at 240 °C (a HT-PEM fuel cell record). However, muc

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4

Khanvilkar, Aditya N., and Ashutosh V. Bedekar. "Synthesis and characterization of chiral aza-macrocycles and study of their enantiomer recognition ability for organo-phosphoric acid and phosphonic acid derivatives by 31P NMR and fluorescence spectroscopy." Organic & Biomolecular Chemistry 14, no. 9 (2016): 2742–48. http://dx.doi.org/10.1039/c5ob02616d.

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Two diastereomers of optically active N,O-containing new macrocycles with dual chirality were synthesized and evaluated for chiral discrimination of organo phosphoric and phosphonic acids by <sup>31</sup>P NMR and fluorescence spectroscopy.

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5

Turgis, Raphaël, Antoine Leydier, Guilhem Arrachart, et al. "Uranium Extraction from Phosphoric Acid Using Bifunctional Amido-Phosphonic Acid Ligands." Solvent Extraction and Ion Exchange 32, no. 5 (2014): 478–91. http://dx.doi.org/10.1080/07366299.2014.898435.

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6

Bruckmann, J., C. Krüger, C. W. Lehmann, W. Leitner, J. Rust, and C. Six. "Ethylenebis(phosphonic acid)." Acta Crystallographica Section C Crystal Structure Communications 55, no. 4 (1999): 695–96. http://dx.doi.org/10.1107/s0108270198016448.

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7

Köken, Nesrin. "Polymers containing amino bis(methylene phosphonic acid) groups for scale inhibition." Pigment & Resin Technology 48, no. 1 (2019): 73–83. http://dx.doi.org/10.1108/prt-01-2017-0007.

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Purpose The purpose of this paper is to prepare poly[allyl amino bis(methylene phosphonic acid)-ran-acrylic acid]s by two different routes. In the first route, poly(allyl amine-ran-acrylic acid)s were produced by radical copolymerization of a mixture of ally amine and acrylic acid, then converted into poly[allyl amino bis(methylene phosphonic acid)-ran-acrylic acid]s by the Mannich reaction with a mixture of formaldehyde and phosphonic acid. In the second route, allyl amino bis(methylene phosphonic acid) monomer was synthesized and copolymerised with acrylic acid. The aim of this work is to pr

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8

Sevrain, Charlotte M., Mathieu Berchel, Hélène Couthon, and Paul-Alain Jaffrès. "Phosphonic acid: preparation and applications." Beilstein Journal of Organic Chemistry 13 (October 20, 2017): 2186–213. http://dx.doi.org/10.3762/bjoc.13.219.

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The phosphonic acid functional group, which is characterized by a phosphorus atom bonded to three oxygen atoms (two hydroxy groups and one P=O double bond) and one carbon atom, is employed for many applications due to its structural analogy with the phosphate moiety or to its coordination or supramolecular properties. Phosphonic acids were used for their bioactive properties (drug, pro-drug), for bone targeting, for the design of supramolecular or hybrid materials, for the functionalization of surfaces, for analytical purposes, for medical imaging or as phosphoantigen. These applications are c

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9

Su, Debao, Cai Yun Guo, Roger D. Willett, Brian Scott, Robert L. Kirchmeier, and Jean'ne M. Shreeve. "Synthesis of trans-1,2-difluoroethenediylbis(phosphonic acid) and other unsaturated phosphonic acids." Journal of the American Chemical Society 112, no. 8 (1990): 3152–55. http://dx.doi.org/10.1021/ja00164a042.

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10

Paladini, A., C. Calcagni, T. Di Palma та ін. "Laser production of gas phase complexes of metalα-aminophosphonic acid mixtures and their role in chiral recognition". International Journal of Photoenergy 3, № 4 (2001): 217–21. http://dx.doi.org/10.1155/s1110662x01000290.

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Clusters between first-group metal ions and chiralα-aminophosphonic acids have been readily generated by Pulsed Laser Ablation (PLA) and by Electrospray Ionization (ESI) and their fragmentation investigated by mass spectrometry. The complexes studied have the general formula[Me(I)Cl2]+, where Me(I) is H, Li, Na, or K, C is (R)-(—)-(1-aminoethyl) phosphonic acid(ER)and (S)-(+)-(1-aminoethyl) phosphonic acid(ES),(1R)-(+)-(1-amino-2-methylpropyl) phosphonic acid(PR)and (1S)-(—)-(1-amino-2-methylpropyl) phosphonic acid(PS),(1R)-(-)-(1-amino-hexyl) phosphonic acid (HR) and (1S)-(+)-(1-amino-hexyl)

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11

Zhou, L., and H. A. Nasr-El-Din. "Phosphonic-Based Hydrofluoric Acid: Interactions With Clay Minerals and Flow in Sandstone Cores." SPE Journal 21, no. 01 (2016): 264–79. http://dx.doi.org/10.2118/164472-pa.

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Summary Regular mud acid, which is composed of hydrochloric acid (HCl) and hydrofluoric (HF) acid, has been extensively used to remove formation damage in sandstone reservoirs; however, many problems may occur during stimulation treatments with this acid. To overcome many of these challenges, a phosphonic-based HF acid system has been used as an alternative to mud acid. However, very-limited research has been performed to investigate the interactions of phosphonic-based HF acid with clay minerals in sandstone reservoirs. In this study, a phosphonic-based HF acid system with two HF concentratio

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12

YURT, AYSEL, and ESRA SOLMAZ. "PHOSPHONIC ACID MONOLAYERS FOR CORROSION PROTECTION OF COPPER: EQCM AND EIS INVESTIGATIONS." Surface Review and Letters 27, no. 06 (2019): 1950166. http://dx.doi.org/10.1142/s0218625x1950166x.

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Preparation, characterization and application of protective phosphonic acid monolayers formed by 1-Aminohexyl phosphonic acid (AHP), 1,4-butanediphosphonic acid (BDPA), 1-amino-1,3-dimethylbutyl phosphonic acid (ADBP) on copper surface as anticorrosive self-assembled molecular monolayers (SAMs) have been investigated by atomic force microscopy (AFM) analysis, electrochemical impedance spectroscopy (EIS) and in situ electrochemical quartz crystal microbalance (EQCM) techniques. Film formation and growth were monitored by EQCM and the step-by-step construction of monolayer was investigated throu

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13

Abe, Yasushi, Toru Amaya, Yuhi Inada, and Toshikazu Hirao. "Characterization of self-doped conducting polyanilines bearing phosphonic acid and phosphonic acid monoester." Synthetic Metals 197 (November 2014): 240–45. http://dx.doi.org/10.1016/j.synthmet.2014.09.020.

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14

McNichols, Brett W., Joshua T. Koubek, and Alan Sellinger. "Single-step synthesis of styryl phosphonic acids via palladium-catalyzed Heck coupling of vinyl phosphonic acid with aryl halides." Chemical Communications 53, no. 92 (2017): 12454–56. http://dx.doi.org/10.1039/c7cc05909d.

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15

Trinchera, Alessandra, Bruno Parisi, Valentina Baratella, et al. "Assessing the Origin of Phosphonic Acid Residues in Organic Vegetable and Fruit Crops: The Biofosf Project Multi-Actor Approach." Agronomy 10, no. 3 (2020): 421. http://dx.doi.org/10.3390/agronomy10030421.

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Recently, on the EU market, phosphonic acid residues were detected in many organic goods, although fosetyl-derivates and phosphite salts are not allowed by Reg. EC n. 889/2009. The BIOFOSF project “Solving phosphite issue in organic fruit and horticultural crops” aimed at verifying whether the phosphonic acid contamination could be due to unproper use of fertilizers/plant protection products by organic farmers, or to the plant’s ability to self-produce it spontaneously. Applying a participative approach, field case-studies on potato, rocket lettuce, and pears were carried out (organic vs. inte

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16

Zhang, Kai, Zhan Wang, Shuying Ma, Chen Wu, and Xiaoyang Zhao. "Theoretical Study on the Thermal Decomposition Mechanism of Fe(EDTA)− and Fe(EDTMP)−." Molecules 29, no. 18 (2024): 4362. http://dx.doi.org/10.3390/molecules29184362.

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The decomposition mechanisms of Fe(EDTA)− and Fe(EDTMP)− complexes, widely used in various industrial applications, were investigated through a theoretical approach. Despite their structural similarities, the phosphonic acid and carboxylic acid groups in these complexes lead to vastly different decomposition behaviors. Fe(EDTA)−, stabilized by delocalized π bonds in carboxylic acid groups, exhibited higher stability than that of Fe(EDTMP)−, which has only σ bonds in phosphonic acid groups. Interaction Region Indicator (IRI) analysis revealed that the steric hindrance of Fe(EDTMP)− was stronger

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17

Burton, Donald J., Anil S. Modak, Ranil Guneratne, et al. "Synthesis of (sulfodifluoromethyl)phosphonic acid." Journal of the American Chemical Society 111, no. 5 (1989): 1773–76. http://dx.doi.org/10.1021/ja00187a033.

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18

Schulz, P. C., B. S. Fern�ndez-Band, B. Vuano, M. Palomeque, and A. L. Allan. "Studies on styrene phosphonic acid." Colloid & Polymer Science 274, no. 8 (1996): 741–46. http://dx.doi.org/10.1007/bf00654669.

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19

Peyman, Anusch, Eugen Uhlmann, Konrad Wagner, et al. "Phosphonic Ester Nucleic Acids(PHONAs): Oligonucleotide Analogues with an Achiral Phosphonic Acid Ester Backbone." Angewandte Chemie International Edition in English 35, no. 22 (1996): 2636–38. http://dx.doi.org/10.1002/anie.199626361.

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20

Kim, Sung-Kon. "Polybenzimidazole and Phosphonic Acid Groups-Functionalized Polyhedral Oligomeric Silsesquioxane Composite Electrolyte for High Temperature Proton Exchange Membrane." Journal of Nanomaterials 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/2954147.

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Here, we report composite membrane consisting of poly[2,2′-(m-phenylene)-5,5′-(bibenzimidazole)] (PBI) and polyhedral oligomeric silsesquioxane functionalized with phosphonic acid groups (PO(OH)2-POSS) for high temperature proton exchange membrane. ~7 phosphonic acid groups are incorporated into the phenyl rings of POSS via bromination in a high yield (~93%), followed by substitution of the bromine elements by phosphonate ester groupsviaa Pd(0) catalyzed P–C coupling reaction. Phosphonic acid groups are formed by the hydrolysis of the phosphonate ester groups in hydrobromic acid solution. At a

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21

A.Nithya, A. Nithya, and S. Rajendran S.Rajendran. "Corrosion Inhibition of Aluminium by Diethylene Triamine Pentamethylene Phosphonic Acid." Indian Journal of Applied Research 3, no. 10 (2011): 1–3. http://dx.doi.org/10.15373/2249555x/oct2013/18.

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22

Tabcheh, M., L. Pappalardo, M. L. Roumestant, and Ph Viallefont. "Neuroexcitatory amino acids: phosphonic analogue of kainic acid." Amino Acids 2, no. 1-2 (1992): 191–93. http://dx.doi.org/10.1007/bf00806089.

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23

Kamber, Matthias, та George Just. "γ-Phosphono-γ-lactones. The use of allyl esters as easily removable phosphonate protecting groups". Canadian Journal of Chemistry 63, № 4 (1985): 823–27. http://dx.doi.org/10.1139/v85-136.

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During the synthesis of γ-lactones bearing a phosphonic acid group at the γ-position, difficulties were encountered generating the free phosphonic acids from corresponding esters. A protecting group used for carboxylic acids was adapted to phosphonic acids, making this transformation easy.

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24

Baumgartner, Yann, Y. Maximilian Klein, Edwin C. Constable, Catherine E. Housecroft, and Markus Willgert. "Cyanoacrylic- and (1-cyanovinyl)phosphonic acid anchoring ligands for application in copper-based dye-sensitized solar cells." RSC Advances 6, no. 89 (2016): 86220–31. http://dx.doi.org/10.1039/c6ra20375b.

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Replacing phosphonic acid by (1-cyanovinyl)phosphonic acid anchors in heteroleptic bis(diimine)copper(i) dyes in DSCs gives a gain in J<sub>SC</sub>; a dye with a bpy-based anchor gives improved performance over one with a phen-based anchor.

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25

Abbenante, Giovanni, Robert Hughes, and Rolf H. Prager. "Potential GABA B Receptor Antagonists. IX The Synthesis of 3-Amino-3-(4-chlorophenyl)propanoic Acid, 2-Amino-2-(4-chlorophenyl)ethylphosphonic Acid and 2-Amino-2-(4-chlorophenyl)ethanesulfonic Acid." Australian Journal of Chemistry 50, no. 6 (1997): 523. http://dx.doi.org/10.1071/c96216.

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This paper describes the synthesis of 3-amino-3-(4-chlorophenyl)propanoic acid and the corresponding phosphonic and sulfonic acids, lower homologues of baclofen, phaclofen and saclofen respectively. The chlorinated acids were all weak specific antagonists of GABA at the GABAB receptor, with the sulfonic acid (pA2 4·0) being stronger than the phosphonic acid (pA2 3·8) and carboxylic acid (pA2 3·5).

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26

Coletti-Previero, M.-A., M. Pugnière, H. Mattras, J. C. Nicolas, and A. Previero. "Selective retention of organic phosphate esters and phosphonates on aluminium oxide." Bioscience Reports 6, no. 5 (1986): 477–83. http://dx.doi.org/10.1007/bf01116139.

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Compounds containing the −PO3H2 function, such as monoesters of phosphoric acid and phosphonic acids, specifically bind to aluminium oxide in aqueous solution under experimental conditions where non-phosphorylated compounds are completely desorbed. The bound organic phosphate can be specifically displaced by aqueous solution of inorganic phosphates thus allowing their separation or detection by a technique similar to that of affinity chromatography. The consequences of this finding for phosphate compound biochemistry are discussed.

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27

Müller, B., and I. Förster. "Derivatives of phosphoric and phosphonic acid as corrosion inhibitors for zinc pigments." Corrosion Science 38, no. 7 (1996): 1103–8. http://dx.doi.org/10.1016/0010-938x(96)00005-4.

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28

Joswig, Jan-Ole, Sandrine Hazebroucq, and Gotthard Seifert. "Properties of the phosphonic-acid molecule and the proton transfer in the phosphonic-acid dimer." Journal of Molecular Structure: THEOCHEM 816, no. 1-3 (2007): 119–23. http://dx.doi.org/10.1016/j.theochem.2007.04.008.

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29

Czech, Bronislaw P., Dhimant H. Desai, Jacek Koszuk, et al. "Synthesis of lipophilic crown ethers with pendant phosphonic acid or phosphonic acid monoethyl ester groups." Journal of Heterocyclic Chemistry 29, no. 4 (1992): 867–75. http://dx.doi.org/10.1002/jhet.5570290433.

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30

Schilling, Marcia L., Howard E. Katz, Francis M. Houlihan, Janet M. Kometani, Susan M. Stein, and Omkaram Nalamasu. "Photogenerated Acid-Catalyzed Formation of Phosphonic/Phosphoric Acids by Deprotection of Esters in Polymer Films." Macromolecules 28, no. 1 (1995): 110–15. http://dx.doi.org/10.1021/ma00105a014.

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31

Wicks, TJ, B. Hall, and P. Pezzaniti. "Fungicidal control of downy mildew (Bremia lactucae) on lettuce." Australian Journal of Experimental Agriculture 33, no. 3 (1993): 381. http://dx.doi.org/10.1071/ea9930381.

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Field experiments to evaluate fungicides for the control of downy mildew (Bremia lactucae Regel) on lettuce were undertaken because of reports of poor disease control with acylalanine fungicides, and the possible withdrawal from the market of ethylene bisdithiocarbamate fungicides.Of 6 fungicides evaluated, dimethomorph at 0.375 and 0.75 g a.i./L and phosphonic acid at 2.4 g a.i./L were the most effective. Dimethomorph and phosphonic acid controlled downy mildew where acylalanine and, in most cases, acylalanine plus mancozeb formulations were ineffective. The use of lettuce cultivars with resi

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32

Sebah, Majda, Sai P. Maddala, Peter Haycock, Alice Sullivan, Harold Toms, and John Wilson. "New phosphonic acid polysilsesquioxane mild solid acid catalysts." Journal of Molecular Catalysis A: Chemical 374-375 (August 2013): 59–65. http://dx.doi.org/10.1016/j.molcata.2013.03.021.

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33

Tong, Jian-Wei, Li-Fang Ma, Deng-Ke Cao, Yi-Zhi Li, and Li-Min Zheng. "[(1H-Benzimidazol-2-ylmethyl)iminodimethylene]diphosphonic acid dihydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 7 (2006): o2694—o2696. http://dx.doi.org/10.1107/s1600536806019763.

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The title compound, C9H15O6N3P2·2H2O, contains two phosphonic acid groups and one benzimidazole group connected by an N(CH2–)3 group. One of the benzimidazole N atoms and two phosphonic acid O atoms of each PO3 group are protonated. Extensive hydrogen-bonding interactions, as well as π–π stacking interactions, are found between the molecules, leading to a three-dimensional supramolecular network structure.

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34

Erbacher, Martin, and Franz-Peter Montforts. "Synthesis of novel porphyrin and chlorin phosphonic acids and their immobilization on metal oxides." Journal of Porphyrins and Phthalocyanines 15, no. 09n10 (2011): 1070–77. http://dx.doi.org/10.1142/s108842461100404x.

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In this study an easy and flexible access to porphyrin and chlorin phosphonic acids is presented. Novel types of phosphonic acid terminated porphyrins and chlorins were synthesized starting from commercially available red blood pigment hemin chloride. Phosphonic acid groups were linked to the porphyrinoids by amide coupling via appropriate spacer moieties. Self-assembled monolayers of the synthesized phosphonates on mesoporous TiO2 electrodes of approximately 3 μm thickness were formed. Surface concentrations in a range of 1 to 4 × 10-8 mol.cm-2 could be determined by UV-vis spectroscopy.

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35

Gheonea, Ramona, Carmen Mak, Eleonora Cornelia Crasmareanu, Vasile Simulescu, Nicoleta Plesu, and Gheorghe Ilia. "Surface Modification of SnO2with Phosphonic Acids." Journal of Chemistry 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/2105938.

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The aim of the present work was the study of phosphonic acids grafting on the surface of SnO2at different molar ratios. In this paper we describe the functionalization of SnO2surfaces with phosphonic acids RPO(OH)2. The surface modification process was achieved by using phenyl-phosphonic acid (PPA) and vinyl-phosphonic acid (VPA). The synthesized materials were investigated by using FT-IR, TGA (in air and in nitrogen), EDX, ESEM, and TEM methods. This synthetic approach has many advantages: films with optical quality and controlled thickness can be obtained using low temperatures and cheap raw

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36

Kitayama, Yukiya, Aoi Katayama, Zhicheng Shao, and Atsushi Harada. "Biocompatible Polymer-Grafted TiO2 Nanoparticle Sonosensitizers Prepared Using Phosphonic Acid-Functionalized RAFT Agent." Polymers 15, no. 11 (2023): 2426. http://dx.doi.org/10.3390/polym15112426.

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Sonodynamic therapy is widely used in clinical studies including cancer therapy. The development of sonosensitizers is important for enhancing the generation of reactive oxygen species (ROS) under sonication. Herein, we have developed poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC)-modified TiO2 nanoparticles as new biocompatible sonosensitizers with high colloidal stability under physiological conditions. To fabricate biocompatible sonosensitizers, a grafting-to approach was adopted with phosphonic-acid-functionalized PMPC, which was prepared by reversible addition–fragmentation chain t

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37

McKay, AG, RM Floyd, and CJ Boyd. "Phosphonic acid controls downy mildew (Peronospora parasitica) in cauliflower curds." Australian Journal of Experimental Agriculture 32, no. 1 (1992): 127. http://dx.doi.org/10.1071/ea9920127.

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Postharvest development of downy mildew (Peronospora parasitica) symptoms in export cauliflower curds has resulted in economic losses to growers in south-western Australia. Neutralised phosphonic acid sprays applied onto cauliflowers in the field within 3 weeks of harvest reduced this disease. Two applications of 2.4 kg a.i./ha, 21 and 7 days before harvest, reduced the incidence of curds affected by downy mildew from 92% in untreated plots to 8%. The maximum phosphonate residue in curds at harvest was 12 �g/g, while control curds contained no detectable phosphonate. No effects of phosphonic a

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38

Schlichting, Gregory J., James L. Horan, and Andrew M. Herring. "Phosphonic Acid Based Proton Exchange Membrane." ECS Transactions 33, no. 1 (2019): 777–81. http://dx.doi.org/10.1149/1.3484572.

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39

Stokes, Kristoffer K., Karine Heuzé, and Richard D. McCullough. "New Phosphonic Acid Functionalized, Regioregular Polythiophenes." Macromolecules 36, no. 19 (2003): 7114–18. http://dx.doi.org/10.1021/ma034639+.

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40

Chadha, R. K., and G. Ösapay. "(S)-[1-(Benzyloxycarbonylamino)ethyl]phosphonic Acid." Acta Crystallographica Section C Crystal Structure Communications 51, no. 11 (1995): 2340–42. http://dx.doi.org/10.1107/s0108270195004355.

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41

Davis, Lindsey O., William F. M. Daniel, and Suzanne L. Tobey. "Phosphonic acid catalyzed synthesis of pyrazolidines." Tetrahedron Letters 53, no. 5 (2012): 522–25. http://dx.doi.org/10.1016/j.tetlet.2011.11.083.

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42

Kibardina, L. K., M. A. Pudovik, R. M. Kamalov, and A. N. Pudovik. "Functional derivatives of (bromomethyl)phosphonic acid." Russian Journal of General Chemistry 74, no. 8 (2004): 1168–70. http://dx.doi.org/10.1007/s11176-005-0131-3.

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43

Opper, Kathleen L., Dilyana Markova, Markus Klapper, Klaus Müllen, and Kenneth B. Wagener. "Precision Phosphonic Acid Functionalized Polyolefin Architectures." Macromolecules 43, no. 8 (2010): 3690–98. http://dx.doi.org/10.1021/ma902659y.

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44

Kaname, Mamoru, Kazuo Yoshinaga, Yasushi Arakawa, and Shigeyuki Yoshifuji. "Synthesis of Hexahydropyridazine-3-phosphonic Acid." CHEMICAL & PHARMACEUTICAL BULLETIN 52, no. 1 (2004): 160–62. http://dx.doi.org/10.1248/cpb.52.160.

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45

Hu, Hairong, Chuanfang Zhu, and Juan Fu. "Synthesis of phosphonic acid containing thiadiazole." Heteroatom Chemistry 19, no. 2 (2008): 140–43. http://dx.doi.org/10.1002/hc.20395.

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46

Horiguchi, Genki, Atsuko Uesaka, Tatsuya Sudo, Yukina Ito, Hidehiro Kamiya, and Yohei Okada. "Flexdispersion: Amphiphilic phosphonic acid-capped nanoparticles." Colloids and Surfaces A: Physicochemical and Engineering Aspects 676 (November 2023): 132190. http://dx.doi.org/10.1016/j.colsurfa.2023.132190.

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47

Rao, B. Venkateswara, and D. M. Puri. "Copper(II) Complexes of Organophoshonic Acids-A Comparative Study." E-Journal of Chemistry 8, s1 (2011): S271—S281. http://dx.doi.org/10.1155/2011/813586.

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Polynuclear copper(II) derivatives of 1-hydroxyethylidenediphosphonic acid (HEDP), 1-aminoethylidenediphosphonic acid (AEDP, H4L),α-aminobenzylidene diphosphonic acid (ABDP, H4L), 1-amino-2-carboxyethane- 1,1-diphosphonic acid (ACEDP, H5L), 1,3 diaminopropane-1,1,3,3-tetra-phosphonic acid (DAPTP, H8L), Ethylenediamine-N,N'-bis (dimethyl-methylenephosphonic) acid (EDBDMPO, H4L),o-phenylene-diamine-N,N'-bis (dimethylmethylenephosphonic) acid (PDBDMPO, H4L), diethylene triamine –N,N,N',N',N"N-penta (methylene phosphonic) acid (DETAPMPO, H10L) and diethylene triamine –N,N"-bis (dimethyl methylene

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48

Amjad, Zahid. "Constant composition study of crystal growth of dicalcium phosphate dihydrate. The influence of polyphosphates, phosphonates, and phytate." Canadian Journal of Chemistry 66, no. 9 (1988): 2181–87. http://dx.doi.org/10.1139/v88-347.

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The influence of inhibitors of varying functional groups on the crystal growth of calcium phosphate dihydrate (CaHPO4•2H2O, DCPD) on DCPD seed crystals at pH 6.00, 37 °C, has been studied using the constant composition technique. The inhibitors studied include: (a) polyphosphate (sodium pyrophosphate, sodium hexametaphosphate, SHMP), (b) phosphonates (nitrilotris(methylene phosphonic acid), NTMP; 1-hydroxyethylidene-1,1-diphosphonic acid, HEDP; ethylenediaminetetra (methylene phosphonic acid), ETMP; hexamethylenediaminetetra(methylene phosphonic acid), HMDP); and (c) myoinositol hexaphosphoric

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49

Kozyra, Kinga, Magdalena Klimek-Ochab, Małgorzata Brzezińska-Rodak, and Ewa Żymańczyk-Duda. "Direct determination of enantiomeric enrichment of chiral, underivatized aminophosphonic acids — useful for enantioselective bioconversion results evaluation." Open Chemistry 11, no. 9 (2013): 1542–47. http://dx.doi.org/10.2478/s11532-013-0277-5.

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AbstractAbstract The possibility of applying 31P NMR spectroscopy for the determination of the enantiomeric excess of the racemic mixture of non-derivatized aminophosphonic acids with small side chains has been investigated. It is proven, that the effectiveness of the application of a chiral solvating agent strongly depends on the concentration of applied shift reagent and on the pH of the particular experiment. Effectual resolution protocols are elaborated for following phosphonic acids: 1-aminoethanephosphonic acid, 1-amino-2-methylpropanephosphonic acid, 1-aminophenylmethanephosphonic acid,

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50

Bravo-Altamirano, Karla, and Jean-Luc Montchamp. "A novel approach to phosphonic acids from hypophosphorous acid." Tetrahedron Letters 48, no. 33 (2007): 5755–59. http://dx.doi.org/10.1016/j.tetlet.2007.06.090.

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