[10] On impermeable acid rocks such as metamorphic schists in a high rainfall climate like that of Western Scotland, the catena consists of thick acidic peat forming wet bog on the flatter facets, and thinner, drier, somewhat less acidic peaty podsols on the steeper facets. "Chemical transfers along slowly eroding catenas developed on granitic cratons in southern Africa". Catenate definition: to arrange or be arranged in a series of chains or rings | Meaning, pronunciation, translations and examples Die Synthese von Catenanen mittels gerichteter kovalenter Bindungen (nach einem grundsätzlichen Konzept von Wasserman und Harry L. Frisch) erfolgte 1964 durch Lüttringhaus und Gottfried Schill. Dieses Syntheseprinzip besitzt vorwiegend historische Bedeutung. ): npl plural noun: Noun always used in plural form--for example, "jeans," "scissors. Diese nicht-kovalenten Wechselwirkungen kompensieren die entropischen Nachteile des Assoziation und lenken die Edukte an günstige Plätze für die Bildung der gewünschten Catenane beim letzten Ringschluss. Lesogo Khomo, Carleton R. Bern, Anthony S. Hartshorn, Kevin H. Rogers, Oliver A. Chadwick, 2013. [3][4] A slope can be broken into sections known as a ridge, crest, midslope, and toeslope. Die Bezeichnung Catenane geht zurück auf das lateinische Wort catena mit der Bedeutung „Kette“. (from Latin catena, chain) an arrangement of two or more circular DNA molecules interlocked like links on a chain. "The soil catena: a systematic approach". Please feel free to read what others say about this name and to share your comments if you have more information.. N.B. Meaning of catena. [3], Lithology and relief can be the primary controls on the development of certain catenas[6] with easily disaggregated parent rock and high relief favoring particle redistribution and therefore the formation of distinct soils in particle-source and particle-deposition zones along a slope. The importance of a catena is the variation of soils across a small area such as a slope. There is nothing surprising in this: both names have the same origin or the same numbers of numerology. Find more Latin words at wordhippo.com! Diese Ringe können nicht voneinander getrennt werden, ohne mindestens eine kovalente Ringbindung eines macrocyclischen Ringes zu brechen. The term soil catena is used to describe the lateral variation in soils over a hillslope. Catenane sind in der Chemie Stoffe, die aus zwei oder mehr mechanisch (wie Glieder einer Kette) verknüpften Ringen meist Makrocyclen bestehen. ‘Since then catenas have been recognized in a variety of areas and under a variety of climatic conditions, an indication of the strength of the relationship between soil and topography.’. "Quantifying colloid mass redistribution in soils and other physical mass transfers". Catenation, chemical linkage into chains of atoms of the same element, occurring only among the atoms of an element that has a valence of at least two and that forms relatively strong bonds with itself. Many fields of study are taken into consideration when studying catenas, studying catenas could help to understand the influence of soil hydrology on soil formation. The concept of a catena was developed in order to analyze the regular variation of soils across a slope. Im Jahre 1994 gelang den Forschern James Fraser Stoddart und David Amabilino und ihren Forschungsgruppen die Synthese eines [5]-Catenans, dass sie Olympiadane (deutsch Olympiadan) nannten, in Anlehnung an die fünf olympischen Ringe. Er führte auch den Begriff Catenane ein. Information and translations of catena compound in the most comprehensive dictionary definitions resource on the web. Verwandte Verbindungen in der organischen Chemie sind die Catenane. The ridge or hilltop tends to accumulate organic matter that allows formation of an adequate thickness of soil. catena translation in Latin-English dictionary. On a steeper slope in the middle of a catena, erosion, such as by runoff, is faster, so facets are typically thinner and drier. Definition of catena compound in the Definitions.net dictionary. A catena can form on various underlying or parent materials and in different climates. Translations in context of "catena" in Italian-English from Reverso Context: catena alimentare, catena di approvvigionamento, reazione a catena, catena di comando, catena di produzione 3 Brown, David J., Murray K. Clayton, and Kevin McSweeney, 2004. Conversely, on a shallower slope at the top or bottom of a catena, soils are thicker and deeper. © … [5] Toeslope soils are not only higher in moisture content, but are also known to be richer in clay and organic matter. Nettleton, W.D., Flach, K.W., Borst, G., 1968. https://en.wikipedia.org/w/index.php?title=Catena_(soil)&oldid=993080474, Creative Commons Attribution-ShareAlike License, This page was last edited on 8 December 2020, at 18:03. catena. In: Birkle, P., Torres-Alvarado, I.S. English words for catena include chain, fetters, chainlet, restraint, succession, cord, shackle, bond and series. Catenas are found to be a great location for the study of soil science, given that the catena concept focuses on past history of the land surface, on hydrology, erosion, sediment transport, and pedogenic processes. [4] Eine andere Methode geht auch auf Wasserman (und unabhängig dem Chemiker bei DuPont Norman M. van Gulick Ende der 1950er Jahre) zurück, die Möbiusband-Synthese, realisiert in den 1980er Jahren durch David M. Walba. Hence, pyrophosphates were initially prepared by heating hydrogen phosphates to red glow. Interpretation Translation  catena. Catenane is derived from the Latin catena meaning "chain". What does catena mean in Italian? Martin to describe a hill slope sequence at the Bukalasa research station. Die Glieder der Catena spiegeln die landschaftstypische, vorwiegend vom Relief bestimmte genetische und funktionale Verknüpfung der … Understanding the soils that make up a catena could facilitate the mapping of soils across a given region. Catenane sind in der Chemie Stoffe, die aus zwei oder mehr mechanisch (wie Glieder einer Kette) verknüpften Ringen – meist Makrocyclen – bestehen. catena. Der erste experimentelle Nachweis der Synthese eines Catenans (wenn auch in geringer Ausbeute) erfolgte durch Edel Wasserman 1960,[2][3] damals an den Bell Laboratories. Am. Meaning: The meaning of the name Catena is: Retrained. Allenfalls bei hoher Verdünnung der Reaktionspartner bei der mechanischen Verknüpfung und einem großen Überschuss des zuvor gebildeten ersten makrocyclischen Rings, funktioniert dieses Verfahren leidlich. In. Chem. Information and translations of catena in the most comprehensive … The term catena (Latin: chain) was first coined by scientist Geoffrey Milne to describe these soil-topography units. English Translation. The catena concept originated in Central Uganda, by chemist W.S. [1] Each soil type or "facet" differs somewhat from its neighbours, but all occur in the same climate and on the same underlying parent material. catena compound ( plural catena compounds ) ( chemistry) Any compound having two or more rings interconnected like the links of a chain, without a covalent bond. f [CHIM] (di un polimero) chain (of a polymer) Dizionario chimica Italiano-Inglese. Catenae definition: a connected series, esp of patristic comments on the Bible | Meaning, pronunciation, translations and examples Martin[2] to describe a hill slope sequence at the Bukalasa research station. They are conceptually related to other mechanically interlocked molecular … [1] Ernsthafte Versuche der Synthese setzten in den 1950er Jahren ein (unter anderem Arthur Lüttringhaus und Friedrich Cramer, zunächst erfolglos). Catena, v.a. Thus, compound (a) in Figure 9 is a [2]catenane. Die Bezeichnung catena- wird in der anorganischen Nomenklatur genutzt, um lineare, kettenförmige Polymere aus identischen mehratomigen Einheiten zu beschreiben. A mature catena is in equilibrium as the processes of deposition and erosion are in balance. Chemistry A molecule which consists of two or more connected rings like links in a chain. Para is not used in inorganic chemistry to the best of my knowledge. Die Synthese von Catenanen gelang aber lange nur in geringen Ausbeuten und komplizierten Syntheseschritten, bis die Templatmethode mit Metallkomplexen von Jean-Pierre Sauvage von 1983[5] das Gebiet revolutionierte. The nomenclature used for these systems involves placing the number of components involved in square brackets prior to the name of the molecule. Ein Beispiel hierfür sind die Catenatriphosphazene. Julien Frey, Tomá Kraus, Valérie Heitz und Jean-Pierre Sauvage: Diese Seite wurde zuletzt am 24. in der Bodenkunde, Bodengeographie und Geomorphologie gebrauchter Begriff, der, in Abhängigkeit von sich ändernden Reliefbedingungen, die kausale Verkettung der Entwicklung von einzelnen Catena-Elementen (z.B. Das Olympiadan hat keinen expliziten Zweck, sondern ist lediglich ein Beitrag zur Grundlagenforschung, die Synthese sollte die Machbarkeit solcher Synthesen untersuchen.[6]. The result is a predictable sequence of soil facets. A catenane is a mechanically-interlocked molecular architecture consisting of two or more interlocked macrocycles, i.e. , place, thing, quality, etc der simultanen Anwendung hohen Drucks, in Ausbeuten von über %. This: both names have the same numbers of numerology ) and soil moisture vary continuously along the slope prepared! Makrocyclen bestehen a predictable sequence of soil facets the covalent bonds of molecule! 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