Für die Synthese von Catenanen gibt es zwei unterschiedliche Methoden. 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. Young, A. The result is a predictable sequence of soil facets. (Eds.). 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. A catena can form on various underlying or parent materials and in different climates. f [CHIM] (di un polimero) chain (of a polymer) Dizionario chimica Italiano-Inglese. The example of this approach consists first in a structural component, the recurring pattern of certain soils in a landscape transects in which every chain element has its place in the chain, a soil has it in a landscape. Chem. "Potential terrain controls on soil color, texture contrast and grain-size deposition for the original catena landscape in Uganda". What does catena mean? The importance of a catena is the variation of soils across a small area such as a slope. catena translation in Latin-English dictionary. Meaning: The meaning of the name Catena is: Retrained. catena. In: Birkle, P., Torres-Alvarado, I.S. Potremo risolvere tutto quello che è ancora rimasto in sospeso in materia di verificabilità della produzione alimentare, dell’approccio alla catena completa, o in altri termini dell’approccio . Meaning of catena compound. Julien Frey, Tomá Kraus, Valérie Heitz und Jean-Pierre Sauvage: Diese Seite wurde zuletzt am 24. chain noun. Soc., Band 82, 1960, S. 4433–4434, Edel Wasserman: Chemical Topology, Scientific American, November 1962, Lüttringhaus, Schill, Gezielte Synthese von Catena‐Verbindungen (1), Angewandte Chemie, Band 76, 1964, S. 567–568. (from Latin catena, chain) an arrangement of two or more circular DNA molecules interlocked like links on a chain. More meanings for catena. Catena-compound meaning Filters (0) (chemistry) Any compound having two or more rings interconnected like the links of a chain , without a covalent bond. Collins Dictionary of Biology, 3rd ed. Catenae definition: a connected series, esp of patristic comments on the Bible | Meaning, pronunciation, translations and examples More example sentences. Verwandte Verbindungen in der organischen Chemie sind die Catenane. Ein Beispiel hierfür sind die Catenatriphosphazene. [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. David B. Amabilino, Peter R. Ashton, Anatoli S. Reder, Neil Spencer, J. Fraser Stoddart: 10.1002/1521-3897(200006)342:5<437::AID-PRAC437>3.0.CO;2-7, https://de.wikipedia.org/w/index.php?title=Catenane&oldid=188888531, „Creative Commons Attribution/Share Alike“. Thus the soil depth, acidity (pH) and soil moisture vary continuously along the slope. Catenane sind in der Chemie Stoffe, die aus zwei oder mehr mechanisch (wie Glieder einer Kette) verknüpften Ringen meist Makrocyclen bestehen. In addition, the top facets lose materials such as mineral salts when these are washed out by rain (eluviation), while the bottom facets gain materials when these are washed in (illuviation).[10][11]. Dies ist der so genannte „statistische Ansatz“ der zur ersten Synthese eines Catenans führte. Ab Anfang der 1990er Jahre synthetisierte er n-Catenane (mit n=2 bis 7 Ringen). ): npl plural noun: Noun always used in plural form--for example, "jeans," "scissors. Conacher, A.J., Dalrymple, J.B., 1977. Sometimes it happens that another name has the same meaning. ‘In general, these two closed chains are linked catenanes, and the type of linkage reflects a topological property of the original substrate.’ 1972. Lesogo Khomo, Carleton R. Bern, Anthony S. Hartshorn, Kevin H. Rogers, Oliver A. Chadwick, 2013. Catenane sind in der Chemie Stoffe, die aus zwei oder mehr mechanisch (wie Glieder einer Kette) verknüpften Ringen – meist Makrocyclen – bestehen. Bern, C.R., Chadwick, O.A., 2010. A catena in soil science (pedology) is a series of distinct but co-evolving soils arrayed down a slope. [1] Ernsthafte Versuche der Synthese setzten in den 1950er Jahren ein (unter anderem Arthur Lüttringhaus und Friedrich Cramer, zunächst erfolglos). Y. Liu, S. A. Vignon, X. Zhang, P. A. Bonvallet, S. I. Khan. The ridge or hilltop tends to accumulate organic matter that allows formation of an adequate thickness of soil. Conversely, on a shallower slope at the top or bottom of a catena, soils are thicker and deeper. The example of this approach consists first in a … The term soil catena is used to describe the lateral variation in soils over a hillslope. catena compound ( plural catena compounds ) ( chemistry) Any compound having two or more rings interconnected like the links of a chain, without a covalent bond. Dieser „templatgesteuerte“ Ansatz, kann mit der simultanen Anwendung hohen Drucks, in Ausbeuten von über 90 % zu Catenanen führen. The DNA is catenated. It aims to disseminate new knowledge and foster better understanding of the physical environment, of evolutionary sequences that have resulted in past and current landscapes, … Diese Ringe können nicht voneinander getrennt werden, ohne mindestens eine kovalente Ringbindung eines macrocyclischen Ringes zu brechen. Information and translations of catena compound in the most comprehensive dictionary definitions resource on the web. Sauvage erhielt unter anderem dafür 2016 den Nobelpreis für Chemie. [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 definition is - a connected series of related things. en The altered times soon restored him to liberty. Para is not used in inorganic chemistry to the best of my knowledge. They are conceptually related to other mechanically interlocked molecular … 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. Catena name meaning, Australian baby Girl name Catena meaning,etymology, history, presonality details. Catenate definition: to arrange or be arranged in a series of chains or rings | Meaning, pronunciation, translations and examples The term catena (Latin: chain) was first coined by scientist Geoffrey Milne to describe these soil-topography units. The term catena (Latin: chain) was first coined by scientist Geoffrey Milne to describe these soil-topography units. Chemistry A molecule which consists of two or more connected rings like links in a chain. nae | , | , | [1] ''Grundbedeutung'' die Fessel, die Kette | [2] ''metaphorisch'' das Band, die Fessel | [1] | [1, 2] , Seite 79, Eintrag „catena“ | [1, 2] | cadenas, c [..] Quelle: de.wiktionary.org: 2: 0 0. catena. A mature catena is in equilibrium as the processes of deposition and erosion are in balance. ‘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.’. "Lateral podzolization in a granite landscape". Neben den Catenanen zählen Rotaxane und molekulare Knoten zur Gruppe der mechanisch verknüpften molekularen Architekturen. Catena publishes papers describing original field and laboratory investigations and reviews on geoecology and landscape evolution with emphasis on interdisciplinary aspects of soil science, hydrology and geomorphology. Steeper slope or crest sections tend to be freely drained, while at the bottom of slopes or toeslopes there is usually higher in moisture content due to poor drainage. 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 Bei der Durchführung einer Cyclisierungsreaktion kann man darauf hoffen, dass sich die Ringe vor dem zweiten und bei weiteren Cyclisierungen so anordnen, dass sich das gewünschte Catenan bildet. 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. There is nothing surprising in this: both names have the same origin or the same numbers of numerology. Neben den Catenanen zählen Rotaxane und molekulare Knoten zur Gruppe der mechanisch verknüpften molekularen Architekt… [3][4] A slope can be broken into sections known as a ridge, crest, midslope, and toeslope. Diese Ringe können nicht voneinander getrennt werden, ohne mindestens eine kovalente Ringbindung eines macrocyclischen Ringes zu brechen. Meaning of catena. Martin[2] to describe a hill slope sequence at the Bukalasa research station. Catena, im engeren Sinne Bodencatena; idealisierter Schnitt durch eine Bodenlandschaft zur Beschreibung der Raumstruktur einer Bodengesellschaft; Untersuchung an natürlichen Aufschlüssen, wie Gräben oder Böschungen oder in Sequenzen aus Bodenprofilen. [10][11] On a permeable basic rock such as chalk, the catena may consist of thick brown earths on the flatter facets, with thin rendzinas on the steeper slopes, while the valley bottom may include alkaline fen peat or river alluvium. Die Bezeichnung Catenane geht zurück auf das lateinische Wort catena mit der Bedeutung „Kette“. Catenanes, from the Latin word catena, meaning chain, are molecules containing two or more interlocked rings that are inseparable unless a covalent bond is broken. [10] A catena is thus an open system which has continuous input and output processes. Dieses Syntheseprinzip besitzt vorwiegend historische Bedeutung. Find more Latin words at wordhippo.com! The property is predominant among carbon atoms, significant among sulfur and silicon atoms, and Die Bezeichnung catena- wird in der anorganischen Nomenklatur genutzt, um lineare, kettenförmige Polymere aus identischen mehratomigen Einheiten zu beschreiben. Die Bezeichnung Catenane geht zurück auf das lateinische Wort catena mit der Bedeutung Kette. concatenamento. 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. Mai 2019 um 01:22 Uhr bearbeitet. "Chemical transfers along slowly eroding catenas developed on granitic cratons in southern Africa". ": catenae "The nine unit landsurface model and pedogeomorphic research". Am. 3 Brown, David J., Murray K. Clayton, and Kevin McSweeney, 2004. Read the latest articles of CATENA at ScienceDirect.com, Elsevier’s leading platform of peer-reviewed scholarly literature Definition of catena in the Definitions.net dictionary. Die Idee der Synthese verzahnter Moleküle wird meist Richard Willstätter in einem Seminar in Zürich zwischen 1906 und 1912 zugeschrieben. 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. [8][9][7], A catena forms when the climate, including precipitation and evaporation, is the same for the whole slope, and when sufficient time has passed for equilibrium to be reached between the processes that bring materials in to a facet and the processes that take materials away. nae [kuh-tee-nee],/kəˈti ni/, a chain or connected series, especially of extracts from the writings of the fathers of the Christian church. Catenane is derived from the Latin catena meaning "chain". Understanding the soils that make up a catena could facilitate the mapping of soils across a given region. [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. chain. The catena concept originated in Central Uganda, by chemist W.S. 1 technical A connected series or chain. 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 … 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. See more. How to use catena in a sentence. Allerdings ist diese Methode sehr ineffizient. English words for catena include chain, fetters, chainlet, restraint, succession, cord, shackle, bond and series. [7], Catenas can also develop on low relief hillslopes, but because less potential energy is available the redistribution of mass can be dominated by subsurface flow of plasma, a combination of dissolved and suspended solids in soil water. We will be able to tie up all the loose ends with regard to the issue of the verifiability of food production, the integral chain approach, or in other words the stable-to-table approach. [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. Inflections of 'catena' (n noun: Refers to person, place, thing, quality, etc. On a steeper slope in the middle of a catena, erosion, such as by runoff, is faster, so facets are typically thinner and drier. What does catena mean in Italian? Bodenprofile, geomorphologische Formen) beschreibt.Ursprünglich in der Bodenkunde entwickelt, stellt das Catena-Prinzip z.B. catena. (Chemistry) a type of chemical compound in which the molecules have two or more rings that are interlocked like the links of a chain noun catenae, catenas. The nomenclature used for these systems involves placing the number of components involved in square brackets prior to the name of the molecule. The interlocked rings cannot be separated without breaking the covalent bonds of the macrocycles. Information and translations of catena in the most comprehensive … English Translation. The concept of a catena was developed in order to analyze the regular variation of soils across a slope. Definition of catena compound in the Definitions.net dictionary. Please feel free to read what others say about this name and to share your comments if you have more information.. N.B. Catenane definition, any of the class of chemical compounds containing two or more rings that are interlocked without being bonded chemically. Hence, pyrophosphates were initially prepared by heating hydrogen phosphates to red glow. a molecule containing two or more intertwined rings. Catena, v.a. "Quantifying colloid mass redistribution in soils and other physical mass transfers". 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 - translate into English with the Italian-English Dictionary - Cambridge Dictionary Die zweite Methode beruht auf supramolekularer Präorganisation der makrocyclischen Vorläufer unter Ausnutzung von Wasserstoffbrückenbindungen, der Koordination von Metallen, hydrophoben Kräften oder Coulomb-Wechselwirkungen. Interpretation Translation  catena. A catenane is a mechanically-interlocked molecular architecture consisting of two or more interlocked macrocycles, i.e. How to use catenate in a sentence. Catenate definition is - to connect in a series : link. range noun. 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. Allenfalls bei hoher Verdünnung der Reaktionspartner bei der mechanischen Verknüpfung und einem großen Überschuss des zuvor gebildeten ersten makrocyclischen Rings, funktioniert dieses Verfahren leidlich. Er führte auch den Begriff Catenane ein. 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. "The soil catena: a systematic approach". catena. Guzmán Gil‐Ramírez, David A. Leigh, Alexander J. Stephen: Catenane, fünfzig Jahre molekulare Verschlingungen, Angewandte Chemie, Band 127, 2015, S. 6208–6249, E. Wasserman, J. Das Olympiadan hat keinen expliziten Zweck, sondern ist lediglich ein Beitrag zur Grundlagenforschung, die Synthese sollte die Machbarkeit solcher Synthesen untersuchen.[6]. The concept of a catena was developed in order to analyze the regular variation of soils across a slope. The catena concept originated in Central Uganda, by chemist W.S. Sommer, M., Halm, D., Weller, U., Zarei, M., Stahr, K., 2000. [5] Toeslope soils are not only higher in moisture content, but are also known to be richer in clay and organic matter. Pyro, meaning fire in Greek, is a prefix for something that has to do with being burnt in some way. Catena Rhyming, similar names and popularity. In. What does catena compound mean? Thus, compound (a) in Figure 9 is a [2]catenane. Entwickelt, stellt das Catena-Prinzip z.B Anthony S. Hartshorn, Kevin H. Rogers, A.. 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Form on various underlying or parent materials and in different climates mehratomigen Einheiten zu..