Zur Strukturchemie der kondensierten anorganischen Phosphate

Thilo, Erich

doi:10.1002/ange.19650772303

Cited by 32 publications

(7 citation statements)

References 139 publications

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“…An almost pure preparation of trimetaphosphate is obtained by very slowly cooling down of the melting mass as well as by heating of the monobasic phosphates to a temperature of only about 600°C. The existence of cyclic condensed phosphates up to a condensation degree of 15 has been shown (Van Wazer 1958;Van Wazer and Karl-Kroupa 1958;Thilo and Schiilke 1965), whereas the mono-and the dimetaphosphate probably do not exist (Van Wazer 1958;Thilo 1959Thilo , 1965.…”

Section: Chemical Synthesismentioning

confidence: 94%

“…Actually, those branching points have been found to a small degree in chemically synthesized samples of Kurrol's and Graham's salts (Van Wazer and Holst 1950;Strauss and Treitler 1955a;Thilo and Sonntag 1957). They will be formed when the ratio between cations and phosphorus is lower than 1 and will occur at about 1 per 1000 residues (Strauss and Smith 1953;Strauss and Treitler 1955a,b;Thilo 1965). These molecules are called branched phosphates or ultraphosphates.…”

Section: Chemical Synthesismentioning

confidence: 95%

“…Besides the mainly formed linear molecules these chemical mixtures of polyphosphates also contain about 10 % of cyclic metaphosphates, predominantly trimetaphosphate (Thilo 1965). The degree of metaphosphate formation can be reduced by rapid cooling of the melting mass.…”

Section: Chemical Synthesismentioning

confidence: 99%

“…The degree of condensation of the Graham's salt can reach more than 1000. The average chain length depends on the conditions during the synthesis (Thilo 1965). The higher the temperature and the lower the vapor pressure the higher is the average chain length.…”

Section: Chemical Synthesismentioning

confidence: 99%

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Methods for Investigation of Inorganic Polyphosphates and Polyphosphate-Metabolizing Enzymes

Lorenz¹,

Schröder²

1999

Inorganic Polyphosphates

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One of the main reasons for the fact that inorganic polyphosphates were a neglected area of research over a long period of time was the lack of reliable experimental tools for the study of these polymers. In recent years, the range and specificity of the methods available have been revolutionized by the development of novel techniques especially in the field of molecular biology and their application to the investigation of polyphosphates. In particular, the availability of specific polyphosphate-dependent enzymes has been a considerable progress for the development of definite and exact methods. However, for certain questions, optimal methods are still missing.The aim of this chapter is to summarize and to illustrate the most important and most widely used methods for investigation of polyphosphates, with their advantages and disadvantages. The efficiency and applicability of nuclear magnetic resonance spectroscopy for studying polyphosphates is described in Chapter 13. Furthermore, novel promising methods for the isolation and quantification of polyphosphate as well as for the measurement of polyphosphate-dependent enzyme activities by using the power of specific enzymes are explained and documented in Chapter 12. 2 Preparation of Inorganic Polyphosphates Chemical SynthesisFormally, inorganic polyphosphates are formed by condensation of orthophosphate under formation of phospho anhydride bonds. Three different groups of basic structures can result: linear, branched and cyclic molecules. The latter are also called metaphosphates. When orthophosphoric acid or its salts are heated these substances form condensates by leaving of water.

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Section: Chemical Synthesismentioning

confidence: 94%

Section: Chemical Synthesismentioning

confidence: 95%

Section: Chemical Synthesismentioning

confidence: 99%

Section: Chemical Synthesismentioning

confidence: 99%

See 2 more Smart Citations

Methods for Investigation of Inorganic Polyphosphates and Polyphosphate-Metabolizing Enzymes

Lorenz¹,

Schröder²

1999

Inorganic Polyphosphates

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“…Feldmann and Thilo also reported that ammonia and alkylamines can react with trimetaphosphate 1 to form open chain phosphoramidates, with the process being reversible in acidic solution [ 36 , 43 ]. In the early 1970s, Orgel et al suggested that the carboxylic acids were almost unreactive with trimetaphosphate 1 under the conditions where the dipeptide was formed [ 44 ].…”

Section: Formation Of N -Phosphoryl Amino Acidsmentioning

confidence: 99%

Nitrogenous Derivatives of Phosphorus and the Origins of Life: Plausible Prebiotic Phosphorylating Agents in Water

Karki

Gibard

Bhowmik

et al. 2017

Life

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Phosphorylation under plausible prebiotic conditions continues to be one of the defining issues for the role of phosphorus in the origins of life processes. In this review, we cover the reactions of alternative forms of phosphate, specifically the nitrogenous versions of phosphate (and other forms of reduced phosphorus species) from a prebiotic, synthetic organic and biochemistry perspective. The ease with which such amidophosphates or phosphoramidate derivatives phosphorylate a wide variety of substrates suggests that alternative forms of phosphate could have played a role in overcoming the “phosphorylation in water problem”. We submit that serious consideration should be given to the search for primordial sources of nitrogenous versions of phosphate and other versions of phosphorus.

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Phosphoric Acid and Phosphates

Schrödter¹,

Bettermann²,

Staffel³

et al. 2000

Ullmann's Encyclopedia of Industrial Chemistry

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Zur Strukturchemie der kondensierten anorganischen Phosphate

Abstract: Nachdem es feststand, daJ es drei Typen kondensierter anorganischer Phosphate

Cited by 32 publications

References 139 publications

Methods for Investigation of Inorganic Polyphosphates and Polyphosphate-Metabolizing Enzymes

Methods for Investigation of Inorganic Polyphosphates and Polyphosphate-Metabolizing Enzymes

Nitrogenous Derivatives of Phosphorus and the Origins of Life: Plausible Prebiotic Phosphorylating Agents in Water

Phosphoric Acid and Phosphates

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