Results 211 to 220 of about 29,315 (256)

Two New Zinc Phosphonates with Triazine-Based Phosphonic Acids

Crystal Growth & Design, 2015
Hydrothermal reactions of Zn(CH3COO)2·2H2O with two new triazine-based phosphonic acids, 2,4,6-triglyphosate-1,3,5-triazine (H9L1) and 4,6-biglyphosate-2-hydroxyl-1,3,5-triazine (H6L2), afforded two new zinc phosphonates, namely, [(C5H14N2)Zn3(HL1)(H2O)]·3.5H2O (1) and [(C5H14N2)Zn2L2]·3H2O (2), respectively. The two zinc phosphonates were structurally
Ruibiao Fu, Shengmin Hu, Xintao Wu
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A plausibly prebiotic synthesis of phosphonic acids

Nature, 1995
The insolubility of calcium phosphate in water is a significant stumbling block in the chemistry required for the origin of life. The discovery of alkyl phosphonic acids in the Murchison meteorite suggests the possibility of delivery of these water-soluble, phosphorus-containing molecules by meteorites or comets to the early Earth.
Degraaf, R.M., Visscher, J., Schwartz, A.W.   +2 more
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Characterization of self-doped conducting polyanilines bearing phosphonic acid and phosphonic acid monoester

Synthetic Metals, 2014
Abstract Novel self-doped polyanilines bearing phosphonic acid, poly(2-methoxyaniline-5-phosphonic acid) (PMAP) and poly(2-methoxyaniline-5-phosphonic acid monoethyl ester) (PMAPE) were characterized in the following properties: (1) thermostability, (2) morphology in the solid state, (3) absorption and transparency in the spin-coating film, (4 ...
Yasushi Abe, Toru Amaya, Yuhi Inada, Toshikazu Hirao   +3 more
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ChemInform Abstract: Synthesis of Phosphonic Monoesters from Phosphonous Acids.

Chemischer Informationsdienst, 1986
AbstractDie Phosphinsäure (I) wird zum Monoester (III) umgesetzt und dann mit Natriumperiodat in Gegenwart von Adamantan‐1‐amin (IV) in zahlreiche Phosphonate (V) übergeführt.
D. S. KARANEWSKY, M. C. BADIA
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Cobalt phosphonates based on 4-(ethoxycarbonyl)naphthalen-1-yl)phosphonic acid

Dalton Transactions, 2013
The first examples of metal phosphonates based on 4-(ethoxycarbonyl)naphthanen-1-yl)phosphonic acid (4-cnppH2) are reported, namely, Co(4-cnpp) (1), Co2(4-cnpp)2(dptz) (2) and Co2(4-cnpp)2(4,4'-bpy)(H2O) (3) (dptz = 3,6-di(pyridin-3-yl)-1,2,4,5-tetrazine, 4,4'-bpy = 4,4'-bipyridine).
Tao, Zheng, Song-Song, Bao, Min, Ren, Li-Min, Zheng   +3 more
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Biosynthesis of phosphonic acids in tetrahymena

Biochimica et Biophysica Acta (BBA) - General Subjects, 1968
Abstract 1. 1. The incorporation in vivo of 14 C-labeled compounds into 2-aminoethylphosphonic acid and 2-amino-3-phosphonopropionic acid in Tetrahymena indicated a glycolytic intermediate precursor. 2. 2. Incorporation of 32 P from phosphoenolpyruvic acid and from 2-amino-3-phosphonoprophonic acid into 2-aminoethylphosphonic acid was ...
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Amino Phosphonic Acids. II. Aminoalkylphosphonic Acids

The Journal of Organic Chemistry, 1972
J P, Berry, A F, Isbell, G E, Hunt
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Phosphonic acids—IX

Tetrahedron, 1966
S. Hirai, R.G. Harvey, E.V. Jensen
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Phosphonic acid metabolism in Tetrahymena

Biochemistry, 1970
J D, Smith, J H, Law
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Vitamin B₆--Phosphonic Acids

Journal of Medicinal and Pharmaceutical Chemistry, 1959
R, BENNETT, A, BURGER, W W, UMBREIT
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